mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
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1,031,063 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
ecf9343196 |
powerpc fixes for 5.14 #5
- Fix crashes coming out of nap on 32-bit Book3s (eg. powerbooks). - Fix critical and debug interrupts on BookE, seen as crashes when using ptrace. - Fix an oops when running an SMP kernel on a UP system. - Update pseries LPAR security flavor after partition migration. - Fix an oops when using kprobes on BookE. - Fix oops on 32-bit pmac by not calling do_IRQ() from timer_interrupt(). - Fix softlockups on CPU hotplug into a CPU-less node with xive (P9). Thanks to: Cédric Le Goater, Christophe Leroy, Finn Thain, Geetika Moolchandani, Laurent Dufour, Laurent Vivier, Nicholas Piggin, Pu Lehui, Radu Rendec, Srikar Dronamraju, Stan Johnson. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAmEY/6QTHG1wZUBlbGxl cm1hbi5pZC5hdQAKCRBR6+o8yOGlgHNBD/9zsObrReMj+lKbgEBw5u8kbERqWjQ4 otJuxkT3mrQTA2YsJZ4QpUE7C+78h7P7aS3LpfpeONkI+WSxbuq/j+47538mpiLu LmasKZVVdLP3b+3eww2pOEYKF1qACkBxsy6gBy0DAzoWAjczVQkdpoe1pXyIQjz2 j3UyuuFvyE76eKHn7aSfOHO1PiNfO0ZXghum9gc5kXsOsqg9eaFbbJ4HUD2FHd6V UmIl+njlt03TS6TBXkZwpcplfZWhcks7ZY/VqylrWSlbUx75J2aJ2hb0G1iU3l9S 51AepEOQmZnkhOGA19PJhVudtUBc8pw5RCwYPeqv71tgo8hayCVgjBy+kmHqAvFI u0iFqA1dZjCPaFlm9Pcgq/DZdzD2xFLilpY/e4qwyDrQ1TsXM4CdJpEkaSsZ2IZ/ HQbvjx1D4U7qZTPCMGSG4IQNtxtSVrZO8CzKoRUTDVDLPdjW/259abLQQTpY7x8z N5M5KeCk6xNk1ZYzxpzRKk+qSwiueIrqyP5GMMfzOCtJwBe7Q+vWtN1RbNQ2pBVO TUzQ0b7WYqiweNUFahXzgeUBUXP6HixG3Ay7z8bnUaWgWSgD8agbyx0gX1Jtj/cJ GAnKOH+GygnqIsijonohXpS+TPOHTR7hAP2w3G7ONJhXiaBKFHp4PKJwSO5tuiR3 NZqm9NYZEsf6CQ== =GOBK -----END PGP SIGNATURE----- Merge tag 'powerpc-5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix crashes coming out of nap on 32-bit Book3s (eg. powerbooks). - Fix critical and debug interrupts on BookE, seen as crashes when using ptrace. - Fix an oops when running an SMP kernel on a UP system. - Update pseries LPAR security flavor after partition migration. - Fix an oops when using kprobes on BookE. - Fix oops on 32-bit pmac by not calling do_IRQ() from timer_interrupt(). - Fix softlockups on CPU hotplug into a CPU-less node with xive (P9). Thanks to Cédric Le Goater, Christophe Leroy, Finn Thain, Geetika Moolchandani, Laurent Dufour, Laurent Vivier, Nicholas Piggin, Pu Lehui, Radu Rendec, Srikar Dronamraju, and Stan Johnson. * tag 'powerpc-5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/xive: Do not skip CPU-less nodes when creating the IPIs powerpc/interrupt: Do not call single_step_exception() from other exceptions powerpc/interrupt: Fix OOPS by not calling do_IRQ() from timer_interrupt() powerpc/kprobes: Fix kprobe Oops happens in booke powerpc/pseries: Fix update of LPAR security flavor after LPM powerpc/smp: Fix OOPS in topology_init() powerpc/32: Fix critical and debug interrupts on BOOKE powerpc/32s: Fix napping restore in data storage interrupt (DSI) |
||
|
Linus Torvalds
|
c4f14eac22 |
A set of fixes for PCI/MSI and x86 interrupt startup:
- Mask all MSI-X entries when enabling MSI-X otherwise stale unmasked
entries stay around e.g. when a crashkernel is booted.
- Enforce masking of a MSI-X table entry when updating it, which mandatory
according to speification
- Ensure that writes to MSI[-X} tables are flushed.
- Prevent invalid bits being set in the MSI mask register
- Properly serialize modifications to the mask cache and the mask register
for multi-MSI.
- Cure the violation of the affinity setting rules on X86 during interrupt
startup which can cause lost and stale interrupts. Move the initial
affinity setting ahead of actualy enabling the interrupt.
- Ensure that MSI interrupts are completely torn down before freeing them
in the error handling case.
- Prevent an array out of bounds access in the irq timings code.
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Merge tag 'irq-urgent-2021-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of fixes for PCI/MSI and x86 interrupt startup:
- Mask all MSI-X entries when enabling MSI-X otherwise stale unmasked
entries stay around e.g. when a crashkernel is booted.
- Enforce masking of a MSI-X table entry when updating it, which
mandatory according to speification
- Ensure that writes to MSI[-X} tables are flushed.
- Prevent invalid bits being set in the MSI mask register
- Properly serialize modifications to the mask cache and the mask
register for multi-MSI.
- Cure the violation of the affinity setting rules on X86 during
interrupt startup which can cause lost and stale interrupts. Move
the initial affinity setting ahead of actualy enabling the
interrupt.
- Ensure that MSI interrupts are completely torn down before freeing
them in the error handling case.
- Prevent an array out of bounds access in the irq timings code"
* tag 'irq-urgent-2021-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
driver core: Add missing kernel doc for device::msi_lock
genirq/msi: Ensure deactivation on teardown
genirq/timings: Prevent potential array overflow in __irq_timings_store()
x86/msi: Force affinity setup before startup
x86/ioapic: Force affinity setup before startup
genirq: Provide IRQCHIP_AFFINITY_PRE_STARTUP
PCI/MSI: Protect msi_desc::masked for multi-MSI
PCI/MSI: Use msi_mask_irq() in pci_msi_shutdown()
PCI/MSI: Correct misleading comments
PCI/MSI: Do not set invalid bits in MSI mask
PCI/MSI: Enforce MSI[X] entry updates to be visible
PCI/MSI: Enforce that MSI-X table entry is masked for update
PCI/MSI: Mask all unused MSI-X entries
PCI/MSI: Enable and mask MSI-X early
|
||
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Linus Torvalds
|
839da25385 |
- Fix a CONFIG symbol's spelling
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||
|
Linus Torvalds
|
12aef8acf0 |
Ard says:
A batch of fixes for the arm64 stub image loader:
- fix a logic bug that can make the random page allocator fail
spuriously
- force reallocation of the Image when it overlaps with firmware
reserved memory regions
- fix an oversight that defeated on optimization introduced earlier
where images loaded at a suitable offset are never moved if booting
without randomization
- complain about images that were not loaded at the right offset by the
firmware image loader.
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Merge tag 'efi_urgent_for_v5.14_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI fixes from Borislav Petkov:
"A batch of fixes for the arm64 stub image loader:
- fix a logic bug that can make the random page allocator fail
spuriously
- force reallocation of the Image when it overlaps with firmware
reserved memory regions
- fix an oversight that defeated on optimization introduced earlier
where images loaded at a suitable offset are never moved if booting
without randomization
- complain about images that were not loaded at the right offset by
the firmware image loader"
* tag 'efi_urgent_for_v5.14_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/libstub: arm64: Double check image alignment at entry
efi/libstub: arm64: Warn when efi_random_alloc() fails
efi/libstub: arm64: Relax 2M alignment again for relocatable kernels
efi/libstub: arm64: Force Image reallocation if BSS was not reserved
arm64: efi: kaslr: Fix occasional random alloc (and boot) failure
|
||
|
Linus Torvalds
|
b045b8cc86 |
- An objdump checker fix to ignore parenthesized strings in the objdump
version
- Fix resctrl default monitoring groups reporting when new subgroups get
created
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Merge tag 'x86_urgent_for_v5.14_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
"Two fixes:
- An objdump checker fix to ignore parenthesized strings in the
objdump version
- Fix resctrl default monitoring groups reporting when new subgroups
get created"
* tag 'x86_urgent_for_v5.14_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/resctrl: Fix default monitoring groups reporting
x86/tools: Fix objdump version check again
|
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Linus Torvalds
|
3e763ec791 |
ARM:
- Plug race between enabling MTE and creating vcpus
- Fix off-by-one bug when checking whether an address range is RAM
x86:
- Fixes for the new MMU, especially a memory leak on hosts with <39
physical address bits
- Remove bogus EFER.NX checks on 32-bit non-PAE hosts
- WAITPKG fix
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"ARM:
- Plug race between enabling MTE and creating vcpus
- Fix off-by-one bug when checking whether an address range is RAM
x86:
- Fixes for the new MMU, especially a memory leak on hosts with <39
physical address bits
- Remove bogus EFER.NX checks on 32-bit non-PAE hosts
- WAITPKG fix"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86/mmu: Protect marking SPs unsync when using TDP MMU with spinlock
KVM: x86/mmu: Don't step down in the TDP iterator when zapping all SPTEs
KVM: x86/mmu: Don't leak non-leaf SPTEs when zapping all SPTEs
KVM: nVMX: Use vmx_need_pf_intercept() when deciding if L0 wants a #PF
kvm: vmx: Sync all matching EPTPs when injecting nested EPT fault
KVM: x86: remove dead initialization
KVM: x86: Allow guest to set EFER.NX=1 on non-PAE 32-bit kernels
KVM: VMX: Use current VMCS to query WAITPKG support for MSR emulation
KVM: arm64: Fix race when enabling KVM_ARM_CAP_MTE
KVM: arm64: Fix off-by-one in range_is_memory
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Linus Torvalds
|
0aa78d1709 |
SCSI fixes on 20210814
Three minor fixes, all in drivers. Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com> -----BEGIN PGP SIGNATURE----- iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCYRiF2yYcamFtZXMuYm90 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishS1EAQDZL/WM TCYRGUQ7tAB/CgoShLDDZqRzmi74EUa7Nnc5XgEA/dA10eWDG8d3U8gSbL86+Jcw 1cRaCemzI2CJm42ixNQ= =4eSU -----END PGP SIGNATURE----- Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three minor fixes, all in drivers" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: mpt3sas: Fix incorrectly assigned error return and check scsi: storvsc: Log TEST_UNIT_READY errors as warnings scsi: lpfc: Move initialization of phba->poll_list earlier to avoid crash |
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Linus Torvalds
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7ba34c0cba |
libnvdimm fixes for v5.14-rc6
- Fix support for NFIT "virtual" ranges (BIOS-defined memory disks)
- Fix recovery from failed label storage areas on NVDIMM devices
- Miscellaneous cleanups from Ira's investigation of dax_direct_access
paths preparing for stray-write protection.
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Merge tag 'libnvdimm-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A couple of fixes for long standing bugs, a warning fixup, and some
miscellaneous dax cleanups.
The bugs were recently found due to new platforms looking to use the
ACPI NFIT "virtual" device definition, and new error injection
capabilities to trigger error responses to label area requests. Ira's
cleanups have been long pending, I neglected to send them earlier, and
see no harm in including them now. This has all appeared in -next with
no reported issues.
Summary:
- Fix support for NFIT "virtual" ranges (BIOS-defined memory disks)
- Fix recovery from failed label storage areas on NVDIMM devices
- Miscellaneous cleanups from Ira's investigation of
dax_direct_access paths preparing for stray-write protection"
* tag 'libnvdimm-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
tools/testing/nvdimm: Fix missing 'fallthrough' warning
libnvdimm/region: Fix label activation vs errors
ACPI: NFIT: Fix support for virtual SPA ranges
dax: Ensure errno is returned from dax_direct_access
fs/dax: Clarify nr_pages to dax_direct_access()
fs/fuse: Remove unneeded kaddr parameter
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Linus Torvalds
|
12f41321ce |
USB fix for 5.14-rc6
Here is a single revert of a commit that caused problems in 5.14-rc5 for 5.14-rc6. It has been in linux-next almost all week, and has resolved the issues that were reported on lots of different systems that were not the platform that the change was originally tested on (gotta love SoC cores used in multiple devices from multiple vendors...) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYRf0Qg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynEBgCgg/t8I7hGF5+bi6qV82K/atVFgvkAnRLN9c43 nUXoVeo1RBk3tI+G31Cl =vpaV -----END PGP SIGNATURE----- Merge tag 'usb-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fix from Greg KH: "A single revert of a commit that caused problems in 5.14-rc5 for 5.14-rc6. It has been in linux-next almost all week, and has resolved the issues that were reported on lots of different systems that were not the platform that the change was originally tested on (gotta love SoC cores used in multiple devices from multiple vendors...)" * tag 'usb-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: Revert "usb: dwc3: gadget: Use list_replace_init() before traversing lists" |
||
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Linus Torvalds
|
56aee57345 |
IIO fixes for 5.14-rc6
Here are some small IIO driver fixes for reported problems for 5.14-rc6 (no staging driver fixes at the moment). All of them resolve reported issues and have been in linux-next all week with no reported problems. Full details are in the shortlog. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYRfzsg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yn4qACdG4OZ4cn8C2QtsxXMtxknUcBeKMYAoIv2x+bB gl/bJVn9vtyVqSESnefM =OOPX -----END PGP SIGNATURE----- Merge tag 'staging-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull IIO driver fixes from Greg KH: "Here are some small IIO driver fixes for reported problems for 5.14-rc6 (no staging driver fixes at the moment). All of them resolve reported issues and have been in linux-next all week with no reported problems. Full details are in the shortlog" * tag 'staging-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: iio: adc: Fix incorrect exit of for-loop iio: humidity: hdc100x: Add margin to the conversion time dt-bindings: iio: st: Remove wrong items length check iio: accel: fxls8962af: fix i2c dependency iio: adis: set GPIO reset pin direction iio: adc: ti-ads7950: Ensure CS is deasserted after reading channels iio: accel: fxls8962af: fix potential use of uninitialized symbol |
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Linus Torvalds
|
76c9e465dd |
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang: "One driver bugfix, a documentation bugfix, and an "uninitialized data" leak fix for the core" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: Documentation: i2c: add i2c-sysfs into index i2c: dev: zero out array used for i2c reads from userspace i2c: iproc: fix race between client unreg and tasklet |
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Linus Torvalds
|
ba31f97d43 |
xen: branch for v5.14-rc6
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCYReBzAAKCRCAXGG7T9hj vsjcAQD9tV9ThjOP9HXL3lGGoSIBCy+t92ZwpVkQuYITa9fHFAD/ViU+Iye5WHTf jWxlveDJMoOegEmpKEQAoX56hDHPkww= =lQOv -----END PGP SIGNATURE----- Merge tag 'for-linus-5.14-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: "A small cleanup patch and a fix of a rare race in the Xen evtchn driver" * tag 'for-linus-5.14-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/events: Fix race in set_evtchn_to_irq xen/events: remove redundant initialization of variable irq |
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Linus Torvalds
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a7a4f1c0c8 |
RISC-V Fixes for 5.14-rc6
* A fix to avoid passing -mno-relax to compilers that don't support it. * A comment fix. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmEXVPYTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYifZcD/9ctKr28Oph+DJTXTg4szOysXPOwepc ui3xrYZ2C3tEO1Wr71VDIj+hncvan7W87KQS8D4wd39cVYUBgM84W/7KaeXfyzk2 A+4I81DhZCR4g/JXm+UyW812pFGrcFYZ5jN4w4EMKJ3cxjaYOv++lu7R7Igw0hke M0zyqv6cNEGNH6TB8frj6TmnCLmEXCQej7KtuivVpE+klyzB9uXX/Yo1rncht0eX SH3Vbfwz7YUWZ/BQ6sTaVoPnIF1aBPKpa2qk3Y9xxZoaDZSzj65MNZhEjEKSoXGV V7/YWLlW6XqNKW633Pj0N718u/v9JZeu7cn0l9TWKh7xhhDP8vk0dv8b9dE3Ap21 9iHL1V4cXDBdviJZ45gbHoBrktNLuS7qXIEg+DLXZvHEHxmNzLcfyDX4HqB0TPlV ks/4efB/cV/Uiq2cYiw/YkabB+CAmpKAhBF3OaH8xMULDc4trFScJHObAT9f+Z1O ULQ8vhIedd32zBGDu7mjFm5D3YshQ8S8wmc+rfp4hKEMo+FIq+gTdWBLheqHAzQU UQY27E1PItUumdz1t6KpbJUYlVRh7Sw4Bc0NBXxQS12r6M44Obs/aRZFJyaDg1Fn wzsLORDrHBQoGE8yWnhC514qsHkviFW7cCh/NRk2d1jTOV8SKXGmxOm+z7GCM3Xh JxNzEr6Z95I8JA== =4Fkm -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - avoid passing -mno-relax to compilers that don't support it - a comment fix * tag 'riscv-for-linus-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Fix comment regarding kernel mapping overlapping with IS_ERR_VALUE riscv: kexec: do not add '-mno-relax' flag if compiler doesn't support it |
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Linus Torvalds
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118516e212 |
configfs fix for Linux 5.14
- fix to revert to the historic write behavior (Bart Van Assche) -----BEGIN PGP SIGNATURE----- iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAmEXaXgLHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYNQLg/+Lagdz93ESb7VZHGKMQQkyMM4Zx8DBv3eMRaIAw19 jK87v15tGrrcse/JLmBWo1s3d5HDZGKOYhsUsv2dAqsa3P7S5p7Hihz4WSGlEQAS UnqqHUafVTPwBqHgt1StF9BpE6QH2zovlJeHnSok6fPvJcUvC5h9Z83mgNW2SUf/ zut1GnqVp82jaDDfJymLIFpT4hRjfj2CpsMa38YU/M0Bunhn87tUFKHVzpdnTG9G v0iLXuGfax1KWJCX3Sf4Pw9vCCTzIUHmWrbH/8X/AywYe5enhuHfTFQAxn623jAg TzFoU/ByR3Je4zhDmci20Kdgay3LREgjGO3iloZG2KcnRJZOSzYU+SX5IWQZvLon JWDqDzr8iR7DIdrfNjIbehYj9DRdlxn1iUr8mvCVK6uxN2deyiLHamD2kqv9fklW D6TOHHkwrCF8k+jQfAc9l5+vk98UsJwFyT9BYatA6U/jtffxlsf7OuN0LHRtzu7a 4zdy5U/7tqT7W4PHy4/ICZN2ka2mm1c5I7JyjEgdj0Qongml4m7g/3vxSEKPJCeB Rj2SCA8163RqYTywEUO5lcjpTbwZBG4pPx6PMGIrhCGGnqdl+RcNVy3Kt2LEdbiq WXq7hQGoOsZLRkloej1B2D9x9mqyYPLzT+w/xzd5iJKVrLv06LHyi/d0GCKTHUNp XN8= =dsC9 -----END PGP SIGNATURE----- Merge tag 'configfs-5.14' of git://git.infradead.org/users/hch/configfs Pull configfs fix from Christoph Hellwig: - fix to revert to the historic write behavior (Bart Van Assche) * tag 'configfs-5.14' of git://git.infradead.org/users/hch/configfs: configfs: restore the kernel v5.13 text attribute write behavior |
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Linus Torvalds
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dfa377c35d |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton: "7 patches. Subsystems affected by this patch series: mm (kasan, mm/slub, mm/madvise, and memcg), and lib" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: lib: use PFN_PHYS() in devmem_is_allowed() mm/memcg: fix incorrect flushing of lruvec data in obj_stock mm/madvise: report SIGBUS as -EFAULT for MADV_POPULATE_(READ|WRITE) mm: slub: fix slub_debug disabling for list of slabs slub: fix kmalloc_pagealloc_invalid_free unit test kasan, slub: reset tag when printing address kasan, kmemleak: reset tags when scanning block |
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Linus Torvalds
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27b2eaa118 |
4 CIFS/SMB3 Fixes, all for stable, 2 relating to deferred close, 1 for modefromsid mount option
-----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmEW5MQACgkQiiy9cAdy T1H6zQwAwOyQrMGA3VtsatmhhQo89oHbkUB4q4+tY7xabPNgTRAPT9BpRSFsrW4y njeiaP1T7nmiU1yJsYQD/JwRv005pBO/xa7sMsLb0RSca//kzin4WTTzxom3RUBW hU29PvAxl+AjaRvbo6VpSn6xuHH1BDcZU+YfWtX3c6tE30sdzwjyMu7rEhivNGCf 0ukIZuIaEJrZmCwMZHT8+qE1dBOKEad8I39POG1v+mybQCWJvo4MAUDyYHZYKTJz 6e3JDARI19G8hfq1oVAM/g5gIBRBEISug3jenOMVG/QnBnRsBvyuTIunoq4ba+S6 qp3jv3p24DaUe9FPp5sYyAhuJHo0rzSwGBv/SdikJA+3xb8k2E3rECAUbf4j/NmV /sj0tN/6/Z05/6L4ZgqUjdS2KfLztDvgzTGnv/LsB097Nhb8hVIhsKoqzypmyAcH 5AsjXFETMCclWE7oE8DkzaAOJqKD7MGJ6KXCjbt8JcFb/b6L/QQbRyRB5ggupgVn Ic7gn/iM =RlpY -----END PGP SIGNATURE----- Merge tag '5.14-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 Pull cifs fixes from Steve French: "Four CIFS/SMB3 Fixes, all for stable, two relating to deferred close, and one for the 'modefromsid' mount option (when 'idsfromsid' not specified)" * tag '5.14-rc5-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: Call close synchronously during unlink/rename/lease break. cifs: Handle race conditions during rename cifs: use the correct max-length for dentry_path_raw() cifs: create sd context must be a multiple of 8 |
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Linus Torvalds
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a83ed22577 |
linux-kselftest-fixes-5.14-rc6
This Kselftest fixes update for Linux 5.14-rc6 consists of a single patch to sgx test to fix Q1 and Q2 calculation. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmEW0ZkACgkQCwJExA0N QxzJ2BAAvybJttpYcfSPPAjtMksWLR96QbMiU9AbgwMrBNePKwdnAwg21uI1qEKT HOEED0LqmPN3dcUMPtLAj/yGBMXu/ByAL3/A1q613JUatauUyT1hZp870vbSac8+ RB+RNGa9Hgw8Xg0tAGgtdCMr5p46lE/6oGeAY179DTsm5Haj0x0Kho87REWaAKL+ xvPtD+SEBNm4yOUlUzUlmeO30g/Zjh0WJRp7biEarhx+z/HS7kE43G88NGJY32Vf MYmAIEf7dOw9Z3ZFyng6K5l6DPM5pep6FTI6GP1EKbFse4YdGYE573qSDfsusDGv 9XKTZny4WIcKUXMR6vCM4vGaruOavhLtJLM7L8/FEOFcGfr+LH4RRxikSG1YSxwv L8wvdzYw3pY3agovaR1zLqTlXIYi281EXhpAorQFA+r3PySCXXkOb+ZhtYUbXUId 3qQj6fuvMv094mR38a5C+yAwFV6V6ojmQjho2XZfkMaoSYFGsMt0L23zHpsnbmb/ frTakZaLkUY2Y9mZ06JaevhP6ebtYBYj6yOwFz3JRqi7rt/ArL7OsfKdEoDNNzQE LwDWOzkvBRTZuZ9CbYTxQpKT0rnSGhZpBig+hBFKGZkqOd4884Z6L5eBB7DQLZ/F rifqdxtxiHZO4Q7WikebvSX7M+LXUJzOIrQML4acxkQjiNVoGYw= =wKY6 -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fix from Shuah Khan: "A single patch to sgx test to fix Q1 and Q2 calculation" * tag 'linux-kselftest-fixes-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/sgx: Fix Q1 and Q2 calculation in sigstruct.c |
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Liang Wang
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854f32648b |
lib: use PFN_PHYS() in devmem_is_allowed()
The physical address may exceed 32 bits on 32-bit systems with more than 32 bits of physcial address. Use PFN_PHYS() in devmem_is_allowed(), or the physical address may overflow and be truncated. We found this bug when mapping a high addresses through devmem tool, when CONFIG_STRICT_DEVMEM is enabled on the ARM with ARM_LPAE and devmem is used to map a high address that is not in the iomem address range, an unexpected error indicating no permission is returned. This bug was initially introduced from v2.6.37, and the function was moved to lib in v5.11. Link: https://lkml.kernel.org/r/20210731025057.78825-1-wangliang101@huawei.com Fixes: |
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Waiman Long
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7fa0dacbaf |
mm/memcg: fix incorrect flushing of lruvec data in obj_stock
When mod_objcg_state() is called with a pgdat that is different from
that in the obj_stock, the old lruvec data cached in obj_stock are
flushed out. Unfortunately, they were flushed to the new pgdat and so
the data go to the wrong node. This will screw up the slab data
reported in /sys/devices/system/node/node*/meminfo.
Fix that by flushing the data to the cached pgdat instead.
Link: https://lkml.kernel.org/r/20210802143834.30578-1-longman@redhat.com
Fixes:
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David Hildenbrand
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eb2faa513c |
mm/madvise: report SIGBUS as -EFAULT for MADV_POPULATE_(READ|WRITE)
Doing some extended tests and polishing the man page update for
MADV_POPULATE_(READ|WRITE), I realized that we end up converting also
SIGBUS (via -EFAULT) to -EINVAL, making it look like yet another
madvise() user error.
We want to report only problematic mappings and permission problems that
the user could have know as -EINVAL.
Let's not convert -EFAULT arising due to SIGBUS (or SIGSEGV) to -EINVAL,
but instead indicate -EFAULT to user space. While we could also convert
it to -ENOMEM, using -EFAULT looks more helpful when user space might
want to troubleshoot what's going wrong: MADV_POPULATE_(READ|WRITE) is
not part of an final Linux release and we can still adjust the behavior.
Link: https://lkml.kernel.org/r/20210726154932.102880-1-david@redhat.com
Fixes:
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Vlastimil Babka
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a7f1d48585 |
mm: slub: fix slub_debug disabling for list of slabs
Vijayanand Jitta reports: Consider the scenario where CONFIG_SLUB_DEBUG_ON is set and we would want to disable slub_debug for few slabs. Using boot parameter with slub_debug=-,slab_name syntax doesn't work as expected i.e; only disabling debugging for the specified list of slabs. Instead it disables debugging for all slabs, which is wrong. This patch fixes it by delaying the moment when the global slub_debug flags variable is updated. In case a "slub_debug=-,slab_name" has been passed, the global flags remain as initialized (depending on CONFIG_SLUB_DEBUG_ON enabled or disabled) and are not simply reset to 0. Link: https://lkml.kernel.org/r/8a3d992a-473a-467b-28a0-4ad2ff60ab82@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reported-by: Vijayanand Jitta <vjitta@codeaurora.org> Reviewed-by: Vijayanand Jitta <vjitta@codeaurora.org> Acked-by: David Rientjes <rientjes@google.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Vinayak Menon <vinmenon@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Shakeel Butt
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1ed7ce574c |
slub: fix kmalloc_pagealloc_invalid_free unit test
The unit test kmalloc_pagealloc_invalid_free makes sure that for the higher order slub allocation which goes to page allocator, the free is called with the correct address i.e. the virtual address of the head page. Commit |
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Kuan-Ying Lee
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340caf178d |
kasan, slub: reset tag when printing address
The address still includes the tags when it is printed. With hardware
tag-based kasan enabled, we will get a false positive KASAN issue when
we access metadata.
Reset the tag before we access the metadata.
Link: https://lkml.kernel.org/r/20210804090957.12393-3-Kuan-Ying.Lee@mediatek.com
Fixes:
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Kuan-Ying Lee
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6c7a00b843 |
kasan, kmemleak: reset tags when scanning block
Patch series "kasan, slub: reset tag when printing address", v3. With hardware tag-based kasan enabled, we reset the tag when we access metadata to avoid from false alarm. This patch (of 2): Kmemleak needs to scan kernel memory to check memory leak. With hardware tag-based kasan enabled, when it scans on the invalid slab and dereference, the issue will occur as below. Hardware tag-based KASAN doesn't use compiler instrumentation, we can not use kasan_disable_current() to ignore tag check. Based on the below report, there are 11 0xf7 granules, which amounts to 176 bytes, and the object is allocated from the kmalloc-256 cache. So when kmemleak accesses the last 256-176 bytes, it causes faults, as those are marked with KASAN_KMALLOC_REDZONE == KASAN_TAG_INVALID == 0xfe. Thus, we reset tags before accessing metadata to avoid from false positives. BUG: KASAN: out-of-bounds in scan_block+0x58/0x170 Read at addr f7ff0000c0074eb0 by task kmemleak/138 Pointer tag: [f7], memory tag: [fe] CPU: 7 PID: 138 Comm: kmemleak Not tainted 5.14.0-rc2-00001-g8cae8cd89f05-dirty #134 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x0/0x1b0 show_stack+0x1c/0x30 dump_stack_lvl+0x68/0x84 print_address_description+0x7c/0x2b4 kasan_report+0x138/0x38c __do_kernel_fault+0x190/0x1c4 do_tag_check_fault+0x78/0x90 do_mem_abort+0x44/0xb4 el1_abort+0x40/0x60 el1h_64_sync_handler+0xb4/0xd0 el1h_64_sync+0x78/0x7c scan_block+0x58/0x170 scan_gray_list+0xdc/0x1a0 kmemleak_scan+0x2ac/0x560 kmemleak_scan_thread+0xb0/0xe0 kthread+0x154/0x160 ret_from_fork+0x10/0x18 Allocated by task 0: kasan_save_stack+0x2c/0x60 __kasan_kmalloc+0xec/0x104 __kmalloc+0x224/0x3c4 __register_sysctl_paths+0x200/0x290 register_sysctl_table+0x2c/0x40 sysctl_init+0x20/0x34 proc_sys_init+0x3c/0x48 proc_root_init+0x80/0x9c start_kernel+0x648/0x6a4 __primary_switched+0xc0/0xc8 Freed by task 0: kasan_save_stack+0x2c/0x60 kasan_set_track+0x2c/0x40 kasan_set_free_info+0x44/0x54 ____kasan_slab_free.constprop.0+0x150/0x1b0 __kasan_slab_free+0x14/0x20 slab_free_freelist_hook+0xa4/0x1fc kfree+0x1e8/0x30c put_fs_context+0x124/0x220 vfs_kern_mount.part.0+0x60/0xd4 kern_mount+0x24/0x4c bdev_cache_init+0x70/0x9c vfs_caches_init+0xdc/0xf4 start_kernel+0x638/0x6a4 __primary_switched+0xc0/0xc8 The buggy address belongs to the object at ffff0000c0074e00 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 176 bytes inside of 256-byte region [ffff0000c0074e00, ffff0000c0074f00) The buggy address belongs to the page: page:(____ptrval____) refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100074 head:(____ptrval____) order:2 compound_mapcount:0 compound_pincount:0 flags: 0xbfffc0000010200(slab|head|node=0|zone=2|lastcpupid=0xffff|kasantag=0x0) raw: 0bfffc0000010200 0000000000000000 dead000000000122 f5ff0000c0002300 raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000c0074c00: f0 f0 f0 f0 f0 f0 f0 f0 f0 fe fe fe fe fe fe fe ffff0000c0074d00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe >ffff0000c0074e00: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 fe fe fe fe fe ^ ffff0000c0074f00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ffff0000c0075000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Disabling lock debugging due to kernel taint kmemleak: 181 new suspected memory leaks (see /sys/kernel/debug/kmemleak) Link: https://lkml.kernel.org/r/20210804090957.12393-1-Kuan-Ying.Lee@mediatek.com Link: https://lkml.kernel.org/r/20210804090957.12393-2-Kuan-Ying.Lee@mediatek.com Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Cc: Marco Elver <elver@google.com> Cc: Nicholas Tang <nicholas.tang@mediatek.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Alexander Potapenko <glider@google.com> Cc: Chinwen Chang <chinwen.chang@mediatek.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
020efdadd8 |
block-5.14-2021-08-13
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Merge tag 'block-5.14-2021-08-13' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few fixes for block that should go into 5.14:
- Revert the mq-deadline cgroup addition. More work is needed on this
front, let's revert it for now and get it right before having it in
a released kernel (Tejun)
- blk-iocost lockdep fix (Ming)
- nbd double completion fix (Xie)
- Fix for non-idling when clearing the shared tag flag (Yu)"
* tag 'block-5.14-2021-08-13' of git://git.kernel.dk/linux-block:
nbd: Aovid double completion of a request
blk-mq: clear active_queues before clearing BLK_MQ_F_TAG_QUEUE_SHARED
Revert "block/mq-deadline: Add cgroup support"
blk-iocost: fix lockdep warning on blkcg->lock
|
||
|
Linus Torvalds
|
42995cee61 |
io_uring-5.14-2021-08-13
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Merge tag 'io_uring-5.14-2021-08-13' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A bit bigger than the previous weeks, but mostly just a few stable
bound fixes. In detail:
- Followup fixes to patches from last week for io-wq, turns out they
weren't complete (Hao)
- Two lockdep reported fixes out of the RT camp (me)
- Sync the io_uring-cp example with liburing, as a few bug fixes
never made it to the kernel carried version (me)
- SQPOLL related TIF_NOTIFY_SIGNAL fix (Nadav)
- Use WRITE_ONCE() when writing sq flags (Nadav)
- io_rsrc_put_work() deadlock fix (Pavel)"
* tag 'io_uring-5.14-2021-08-13' of git://git.kernel.dk/linux-block:
tools/io_uring/io_uring-cp: sync with liburing example
io_uring: fix ctx-exit io_rsrc_put_work() deadlock
io_uring: drop ctx->uring_lock before flushing work item
io-wq: fix IO_WORKER_F_FIXED issue in create_io_worker()
io-wq: fix bug of creating io-wokers unconditionally
io_uring: rsrc ref lock needs to be IRQ safe
io_uring: Use WRITE_ONCE() when writing to sq_flags
io_uring: clear TIF_NOTIFY_SIGNAL when running task work
|
||
|
Linus Torvalds
|
462938cd48 |
Pin control fixes for the v5.14 kernel series:
- Fix the Kconfig dependency for Qualcomm SM8350 pin
controller.
- Fix pin biasing fallback behaviour on the Mediatek pin
controller.
- Fix the GPIO numbering scheme for Intel Tiger Lake-H
to correspond to the products that are now actually out
on the market.
- Fix a pin control function itemization in the Sunxi driver
out-of-bounds access bug.
- Fix disable clocking for the RISC-V K210 pin controller on
the errorpath.
- Fix a system shutdown bug affecting AMD Ryzen-based laptops,
the system would not suspend but just bounce back up.
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Merge tag 'pinctrl-v5.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"An assortment of pin control fixes of varying importance, the most
important ones affecting Intel and AMD laptops turned up the recent
few days so it's time to push this to your tree.
- Fix the Kconfig dependency for Qualcomm SM8350 pin controller
- Fix pin biasing fallback behaviour on the Mediatek pin controller
- Fix the GPIO numbering scheme for Intel Tiger Lake-H to correspond
to the products that are now actually out on the market
- Fix a pin control function itemization in the Sunxi driver
out-of-bounds access bug
- Fix disable clocking for the RISC-V K210 pin controller on the
errorpath
- Fix a system shutdown bug affecting AMD Ryzen-based laptops, the
system would not suspend but just bounce back up"
* tag 'pinctrl-v5.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: amd: Fix an issue with shutdown when system set to s0ix
pinctrl: k210: Fix k210_fpioa_probe()
pinctrl: sunxi: Don't underestimate number of functions
pinctrl: tigerlake: Fix GPIO mapping for newer version of software
pinctrl: mediatek: Fix fallback behavior for bias_set_combo
pinctrl: qcom: fix GPIOLIB dependencies
|
||
Xie Yongji
|
cddce01160 |
nbd: Aovid double completion of a request
There is a race between iterating over requests in
nbd_clear_que() and completing requests in recv_work(),
which can lead to double completion of a request.
To fix it, flush the recv worker before iterating over
the requests and don't abort the completed request
while iterating.
Fixes:
|
||
Jens Axboe
|
8f40d03707 |
tools/io_uring/io_uring-cp: sync with liburing example
This example is missing a few fixes that are in the liburing version, synchronize with the upstream version. Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Yu Kuai
|
454bb67752 |
blk-mq: clear active_queues before clearing BLK_MQ_F_TAG_QUEUE_SHARED
We run a test that delete and recover devcies frequently(two devices on the same host), and we found that 'active_queues' is super big after a period of time. If device a and device b share a tag set, and a is deleted, then blk_mq_exit_queue() will clear BLK_MQ_F_TAG_QUEUE_SHARED because there is only one queue that are using the tag set. However, if b is still active, the active_queues of b might never be cleared even if b is deleted. Thus clear active_queues before BLK_MQ_F_TAG_QUEUE_SHARED is cleared. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20210731062130.1533893-1-yukuai3@huawei.com Signed-off-by: Jens Axboe <axboe@kernel.dk> |
||
Thomas Gleixner
|
7a3dc4f35b |
driver core: Add missing kernel doc for device::msi_lock
Fixes:
|
||
Paolo Bonzini
|
6e949ddb0a |
Merge branch 'kvm-tdpmmu-fixes' into kvm-master
Merge topic branch with fixes for both 5.14-rc6 and 5.15. |
||
Sean Christopherson
|
ce25681d59 |
KVM: x86/mmu: Protect marking SPs unsync when using TDP MMU with spinlock
Add yet another spinlock for the TDP MMU and take it when marking indirect
shadow pages unsync. When using the TDP MMU and L1 is running L2(s) with
nested TDP, KVM may encounter shadow pages for the TDP entries managed by
L1 (controlling L2) when handling a TDP MMU page fault. The unsync logic
is not thread safe, e.g. the kvm_mmu_page fields are not atomic, and
misbehaves when a shadow page is marked unsync via a TDP MMU page fault,
which runs with mmu_lock held for read, not write.
Lack of a critical section manifests most visibly as an underflow of
unsync_children in clear_unsync_child_bit() due to unsync_children being
corrupted when multiple CPUs write it without a critical section and
without atomic operations. But underflow is the best case scenario. The
worst case scenario is that unsync_children prematurely hits '0' and
leads to guest memory corruption due to KVM neglecting to properly sync
shadow pages.
Use an entirely new spinlock even though piggybacking tdp_mmu_pages_lock
would functionally be ok. Usurping the lock could degrade performance when
building upper level page tables on different vCPUs, especially since the
unsync flow could hold the lock for a comparatively long time depending on
the number of indirect shadow pages and the depth of the paging tree.
For simplicity, take the lock for all MMUs, even though KVM could fairly
easily know that mmu_lock is held for write. If mmu_lock is held for
write, there cannot be contention for the inner spinlock, and marking
shadow pages unsync across multiple vCPUs will be slow enough that
bouncing the kvm_arch cacheline should be in the noise.
Note, even though L2 could theoretically be given access to its own EPT
entries, a nested MMU must hold mmu_lock for write and thus cannot race
against a TDP MMU page fault. I.e. the additional spinlock only _needs_ to
be taken by the TDP MMU, as opposed to being taken by any MMU for a VM
that is running with the TDP MMU enabled. Holding mmu_lock for read also
prevents the indirect shadow page from being freed. But as above, keep
it simple and always take the lock.
Alternative #1, the TDP MMU could simply pass "false" for can_unsync and
effectively disable unsync behavior for nested TDP. Write protecting leaf
shadow pages is unlikely to noticeably impact traditional L1 VMMs, as such
VMMs typically don't modify TDP entries, but the same may not hold true for
non-standard use cases and/or VMMs that are migrating physical pages (from
L1's perspective).
Alternative #2, the unsync logic could be made thread safe. In theory,
simply converting all relevant kvm_mmu_page fields to atomics and using
atomic bitops for the bitmap would suffice. However, (a) an in-depth audit
would be required, (b) the code churn would be substantial, and (c) legacy
shadow paging would incur additional atomic operations in performance
sensitive paths for no benefit (to legacy shadow paging).
Fixes:
|
||
|
Sean Christopherson
|
0103098fb4 |
KVM: x86/mmu: Don't step down in the TDP iterator when zapping all SPTEs
Set the min_level for the TDP iterator at the root level when zapping all SPTEs to optimize the iterator's try_step_down(). Zapping a non-leaf SPTE will recursively zap all its children, thus there is no need for the iterator to attempt to step down. This avoids rereading the top-level SPTEs after they are zapped by causing try_step_down() to short-circuit. In most cases, optimizing try_step_down() will be in the noise as the cost of zapping SPTEs completely dominates the overall time. The optimization is however helpful if the zap occurs with relatively few SPTEs, e.g. if KVM is zapping in response to multiple memslot updates when userspace is adding and removing read-only memslots for option ROMs. In that case, the task doing the zapping likely isn't a vCPU thread, but it still holds mmu_lock for read and thus can be a noisy neighbor of sorts. Reviewed-by: Ben Gardon <bgardon@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210812181414.3376143-3-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
|
Sean Christopherson
|
524a1e4e38 |
KVM: x86/mmu: Don't leak non-leaf SPTEs when zapping all SPTEs
Pass "all ones" as the end GFN to signal "zap all" for the TDP MMU and
really zap all SPTEs in this case. As is, zap_gfn_range() skips non-leaf
SPTEs whose range exceeds the range to be zapped. If shadow_phys_bits is
not aligned to the range size of top-level SPTEs, e.g. 512gb with 4-level
paging, the "zap all" flows will skip top-level SPTEs whose range extends
beyond shadow_phys_bits and leak their SPs when the VM is destroyed.
Use the current upper bound (based on host.MAXPHYADDR) to detect that the
caller wants to zap all SPTEs, e.g. instead of using the max theoretical
gfn, 1 << (52 - 12). The more precise upper bound allows the TDP iterator
to terminate its walk earlier when running on hosts with MAXPHYADDR < 52.
Add a WARN on kmv->arch.tdp_mmu_pages when the TDP MMU is destroyed to
help future debuggers should KVM decide to leak SPTEs again.
The bug is most easily reproduced by running (and unloading!) KVM in a
VM whose host.MAXPHYADDR < 39, as the SPTE for gfn=0 will be skipped.
=============================================================================
BUG kvm_mmu_page_header (Not tainted): Objects remaining in kvm_mmu_page_header on __kmem_cache_shutdown()
-----------------------------------------------------------------------------
Slab 0x000000004d8f7af1 objects=22 used=2 fp=0x00000000624d29ac flags=0x4000000000000200(slab|zone=1)
CPU: 0 PID: 1582 Comm: rmmod Not tainted 5.14.0-rc2+ #420
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
Call Trace:
dump_stack_lvl+0x45/0x59
slab_err+0x95/0xc9
__kmem_cache_shutdown.cold+0x3c/0x158
kmem_cache_destroy+0x3d/0xf0
kvm_mmu_module_exit+0xa/0x30 [kvm]
kvm_arch_exit+0x5d/0x90 [kvm]
kvm_exit+0x78/0x90 [kvm]
vmx_exit+0x1a/0x50 [kvm_intel]
__x64_sys_delete_module+0x13f/0x220
do_syscall_64+0x3b/0xc0
entry_SYSCALL_64_after_hwframe+0x44/0xae
Fixes:
|
||
|
Paolo Bonzini
|
c5e2bf0b4a |
KVM/arm64 fixes for 5.14, take #2
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||
|
Sean Christopherson
|
18712c1370 |
KVM: nVMX: Use vmx_need_pf_intercept() when deciding if L0 wants a #PF
Use vmx_need_pf_intercept() when determining if L0 wants to handle a #PF in L2 or if the VM-Exit should be forwarded to L1. The current logic fails to account for the case where #PF is intercepted to handle guest.MAXPHYADDR < host.MAXPHYADDR and ends up reflecting all #PFs into L1. At best, L1 will complain and inject the #PF back into L2. At worst, L1 will eat the unexpected fault and cause L2 to hang on infinite page faults. Note, while the bug was technically introduced by the commit that added support for the MAXPHYADDR madness, the shame is all on commit |
||
Junaid Shahid
|
85aa8889b8 |
kvm: vmx: Sync all matching EPTPs when injecting nested EPT fault
When a nested EPT violation/misconfig is injected into the guest, the shadow EPT PTEs associated with that address need to be synced. This is done by kvm_inject_emulated_page_fault() before it calls nested_ept_inject_page_fault(). However, that will only sync the shadow EPT PTE associated with the current L1 EPTP. Since the ASID is based on EP4TA rather than the full EPTP, so syncing the current EPTP is not enough. The SPTEs associated with any other L1 EPTPs in the prev_roots cache with the same EP4TA also need to be synced. Signed-off-by: Junaid Shahid <junaids@google.com> Message-Id: <20210806222229.1645356-1-junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
|
Paolo Bonzini
|
375d1adebc |
Merge branch 'kvm-vmx-secctl' into kvm-master
Merge common topic branch for 5.14-rc6 and 5.15 merge window. |
||
|
Paolo Bonzini
|
ffbe17cada |
KVM: x86: remove dead initialization
hv_vcpu is initialized again a dozen lines below, and at this point vcpu->arch.hyperv is not valid. Remove the initializer. Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
||
|
Sean Christopherson
|
1383279c64 |
KVM: x86: Allow guest to set EFER.NX=1 on non-PAE 32-bit kernels
Remove an ancient restriction that disallowed exposing EFER.NX to the
guest if EFER.NX=0 on the host, even if NX is fully supported by the CPU.
The motivation of the check, added by commit
|
||
|
Linus Torvalds
|
f8e6dfc64f |
Networking fixes for 5.14-rc6, including fixes from netfilter, bpf,
can and ieee802154.
Current release - regressions:
- r8169: fix ASPM-related link-up regressions
- bridge: fix flags interpretation for extern learn fdb entries
- phy: micrel: fix link detection on ksz87xx switch
- Revert "tipc: Return the correct errno code"
- ptp: fix possible memory leak caused by invalid cast
Current release - new code bugs:
- bpf: add missing bpf_read_[un]lock_trace() for syscall program
- bpf: fix potentially incorrect results with bpf_get_local_storage()
- page_pool: mask the page->signature before the checking, avoid
dma mapping leaks
- netfilter: nfnetlink_hook: 5 fixes to information in netlink dumps
- bnxt_en: fix firmware interface issues with PTP
- mlx5: Bridge, fix ageing time
Previous releases - regressions:
- linkwatch: fix failure to restore device state across suspend/resume
- bareudp: fix invalid read beyond skb's linear data
Previous releases - always broken:
- bpf: fix integer overflow involving bucket_size
- ppp: fix issues when desired interface name is specified via netlink
- wwan: mhi_wwan_ctrl: fix possible deadlock
- dsa: microchip: ksz8795: fix number of VLAN related bugs
- dsa: drivers: fix broken backpressure in .port_fdb_dump
- dsa: qca: ar9331: make proper initial port defaults
Misc:
- bpf: add lockdown check for probe_write_user helper
- netfilter: conntrack: remove offload_pickup sysctl before 5.14 is out
- netfilter: conntrack: collect all entries in one cycle,
heuristically slow down garbage collection scans
on idle systems to prevent frequent wake ups
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes, including fixes from netfilter, bpf, can and
ieee802154.
The size of this is pretty normal, but we got more fixes for 5.14
changes this week than last week. Nothing major but the trend is the
opposite of what we like. We'll see how the next week goes..
Current release - regressions:
- r8169: fix ASPM-related link-up regressions
- bridge: fix flags interpretation for extern learn fdb entries
- phy: micrel: fix link detection on ksz87xx switch
- Revert "tipc: Return the correct errno code"
- ptp: fix possible memory leak caused by invalid cast
Current release - new code bugs:
- bpf: add missing bpf_read_[un]lock_trace() for syscall program
- bpf: fix potentially incorrect results with bpf_get_local_storage()
- page_pool: mask the page->signature before the checking, avoid dma
mapping leaks
- netfilter: nfnetlink_hook: 5 fixes to information in netlink dumps
- bnxt_en: fix firmware interface issues with PTP
- mlx5: Bridge, fix ageing time
Previous releases - regressions:
- linkwatch: fix failure to restore device state across
suspend/resume
- bareudp: fix invalid read beyond skb's linear data
Previous releases - always broken:
- bpf: fix integer overflow involving bucket_size
- ppp: fix issues when desired interface name is specified via
netlink
- wwan: mhi_wwan_ctrl: fix possible deadlock
- dsa: microchip: ksz8795: fix number of VLAN related bugs
- dsa: drivers: fix broken backpressure in .port_fdb_dump
- dsa: qca: ar9331: make proper initial port defaults
Misc:
- bpf: add lockdown check for probe_write_user helper
- netfilter: conntrack: remove offload_pickup sysctl before 5.14 is
out
- netfilter: conntrack: collect all entries in one cycle,
heuristically slow down garbage collection scans on idle systems to
prevent frequent wake ups"
* tag 'net-5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (87 commits)
vsock/virtio: avoid potential deadlock when vsock device remove
wwan: core: Avoid returning NULL from wwan_create_dev()
net: dsa: sja1105: unregister the MDIO buses during teardown
Revert "tipc: Return the correct errno code"
net: mscc: Fix non-GPL export of regmap APIs
net: igmp: increase size of mr_ifc_count
MAINTAINERS: switch to my OMP email for Renesas Ethernet drivers
tcp_bbr: fix u32 wrap bug in round logic if bbr_init() called after 2B packets
net: pcs: xpcs: fix error handling on failed to allocate memory
net: linkwatch: fix failure to restore device state across suspend/resume
net: bridge: fix memleak in br_add_if()
net: switchdev: zero-initialize struct switchdev_notifier_fdb_info emitted by drivers towards the bridge
net: bridge: fix flags interpretation for extern learn fdb entries
net: dsa: sja1105: fix broken backpressure in .port_fdb_dump
net: dsa: lantiq: fix broken backpressure in .port_fdb_dump
net: dsa: lan9303: fix broken backpressure in .port_fdb_dump
net: dsa: hellcreek: fix broken backpressure in .port_fdb_dump
bpf, core: Fix kernel-doc notation
net: igmp: fix data-race in igmp_ifc_timer_expire()
net: Fix memory leak in ieee802154_raw_deliver
...
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|
Linus Torvalds
|
3a03c67de2 |
A patch to avoid a soft lockup in ceph_check_delayed_caps() from Luis
and a reference handling fix from Jeff that should address some memory corruption reports in the snaprealm area. Both marked for stable. -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmEVaqsTHGlkcnlvbW92 QGdtYWlsLmNvbQAKCRBKf944AhHzi/DBCACd7+mnAXIwajwoDdXFIJT7/tfimdvU cMrh6ciZNtEKxm23flQ1AFJXlXR/nlZRspfOmlmsl9bB4TAlXnhJ/s4JaiuOMMTh OQ4oz0vAbGELkPsXB/FXGSSk1wTFEjCocFsJwoYiUkYjD7Qt12BZKNkFYgj/MVc2 wyJ5K1buqBLVFDU+CymqDzc07YpG1zn888o7UGWFTyevldRAHl2euxqbnr0S4qb9 OS5UKO3aFCEt5PT9RKRHygCGjuHym/fgXgPm9aNY4rYBE9qOXloVUOD5bhMHBJ2E g506xhOurqbGv4O9oj+gvBwtQwY/TF8BvCA79koQSHNIYQsC/bcXenST =m8x8 -----END PGP SIGNATURE----- Merge tag 'ceph-for-5.14-rc6' of git://github.com/ceph/ceph-client Pull ceph fixes from Ilya Dryomov: "A patch to avoid a soft lockup in ceph_check_delayed_caps() from Luis and a reference handling fix from Jeff that should address some memory corruption reports in the snaprealm area. Both marked for stable" * tag 'ceph-for-5.14-rc6' of git://github.com/ceph/ceph-client: ceph: take snap_empty_lock atomically with snaprealm refcount change ceph: reduce contention in ceph_check_delayed_caps() |
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Linus Torvalds
|
82cce5f429 |
drm fixes for 5.14-rc6
amdgpu: - Yellow carp update - RAS EEPROM fixes - BACO/BOCO fixes - Fix a memory leak in an error path - Freesync fix - VCN harvesting fix - Display fixes i915: - GVT fix for Windows VM hang. - Display fix of 12 BPC bits for display 12 and newer. - Don't try to access some media register for fused off domains. - Fix kerneldoc build warnings. mediatek: - Fix dpi bridge bug. - Fix cursor plane no update. meson: - Fix colors when booting with HDR -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmEVjJYACgkQDHTzWXnE hr5RNQ/9EpOCgrgKCDXyFdpW6NqGIPbkSeNYaa4fCVNLzKkkCsuwapRDamsBTvvO O/p6aIVbzlPzn/BkMj3COy5W44Za4n02495jYVYU9CRlkOTiSa6CwzKtcsu4X6d/ uZsOdyOc5inHr8j2abUdqq1rmL7JW9uDnn0PNFBG739DITAmJvmKOUA3TcWe7Fdb KUI1k3Ukjw8HD38OqTQNUuYVEZ6Dq4yVkIKsUOtW/kcvvgas4d1cDhe8NurJxtqr kw1HqzDFflPmJ1V4AJWl+wpaHsE11cR1kldI7iVYlP0MKhAWCXNbdgcFjcyFKkhh NWn1qSoWVMKZ5vmbpMn/EDnNZjoGZ+dsW7c7+vS0g/JWjN8VkUgqO+cAYwG1vm+P S+smD138g7j1DP0uP1XYTETyLOr9BoApkxYyaYAFZZKLcWNBiEuxU/fu8i+yDVNX 44L8ICi8KZezAoI5qHyTYIt2NyN3bjdhUXEnAUiqIL1mKF/XacCciVLQnK+NH3FR qVg6XWBV6LDvhrffatft5wYGAzUXC6SDbUas5hES4zd1L/M0A7dYiJ9BFRzIL/r1 bVPAcgmy3NbHITxdAM+WB9bGhEiV5PxlzYs1L9itFw8DSETexOKEFVq8Ni5kqeul U5LFWTQFTrZ2lvK1Rn6Ys1KNYpH3wJV9tuTvGBCrSQsZ8PgLAWE= =w0XU -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2021-08-13' of git://anongit.freedesktop.org/drm/drm Pull drm fixes from Dave Airlie: "Another week, another set of pretty regular fixes, nothing really stands out too much. amdgpu: - Yellow carp update - RAS EEPROM fixes - BACO/BOCO fixes - Fix a memory leak in an error path - Freesync fix - VCN harvesting fix - Display fixes i915: - GVT fix for Windows VM hang. - Display fix of 12 BPC bits for display 12 and newer. - Don't try to access some media register for fused off domains. - Fix kerneldoc build warnings. mediatek: - Fix dpi bridge bug. - Fix cursor plane no update. meson: - Fix colors when booting with HDR" * tag 'drm-fixes-2021-08-13' of git://anongit.freedesktop.org/drm/drm: drm/doc/rfc: drop lmem uapi section drm/i915: Only access SFC_DONE when media domain is not fused off drm/i915/display: Fix the 12 BPC bits for PIPE_MISC reg drm/amd/display: use GFP_ATOMIC in amdgpu_dm_irq_schedule_work drm/amd/display: Remove invalid assert for ODM + MPC case drm/amd/pm: bug fix for the runtime pm BACO drm/amdgpu: handle VCN instances when harvesting (v2) drm/meson: fix colour distortion from HDR set during vendor u-boot drm/i915/gvt: Fix cached atomics setting for Windows VM drm/amdgpu: Add preferred mode in modeset when freesync video mode's enabled. drm/amd/pm: Fix a memory leak in an error handling path in 'vangogh_tables_init()' drm/amdgpu: don't enable baco on boco platforms in runpm drm/amdgpu: set RAS EEPROM address from VBIOS drm/amd/pm: update smu v13.0.1 firmware header drm/mediatek: Fix cursor plane no update drm/mediatek: mtk-dpi: Set out_fmt from config if not the last bridge drm/mediatek: dpi: Fix NULL dereference in mtk_dpi_bridge_atomic_check |
||
Dave Airlie
|
a1fa726831 |
Short summary of fixes pull:
* meson: Fix colors when booting with HDR -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEchf7rIzpz2NEoWjlaA3BHVMLeiMFAmEU27UACgkQaA3BHVML eiMABwf+Kuvyh6mXHewMwqRNnxYFwyyhy5AVJm17Z74pZcbxSWp2+WBxDTaugCRX Dl5Yt27DsCCW0JFpZ0w4xITizUxhD/VKnVUONBB1HK1s92h7WxG+2SQEPQ7uHQj5 iBbaysCn5uIJhpDnTXcqos0wnLMxkquZ5ZK6uQwPD+Q8VsAwMVw0dZ1C/Kkmo9zF 55VUATGIGBtOI4FEDJfDZGukVfbDt28ipMNeyCiqfzREnDeIyojJ/KEbSD3XHhi7 HMDkeAM5SHToNaBEIaEikPWKSSa/b5P3y9U/yT6d4MZ1PH/lr1he4SQnThcTRCg8 +vnMC1iJiwgdX7gQ2StHBoB1GMqv1Q== =NuGL -----END PGP SIGNATURE----- Merge tag 'drm-misc-fixes-2021-08-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes Short summary of fixes pull: * meson: Fix colors when booting with HDR Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/YRTb+qUuBYWjJDVg@linux-uq9g.fritz.box |
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Dave Airlie
|
3e234e9f7f |
- GVT fix for Windows VM hang.
- Display fix of 12 BPC bits for display 12 and newer. - Don't try to access some media register for fused off domains. - Fix kerneldoc build warnings. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEbSBwaO7dZQkcLOKj+mJfZA7rE8oFAmEVP3QACgkQ+mJfZA7r E8qGKQgApmIuFnhFspZ2BMsbhxOckZW7mxg+4RzNbIZ/pb+2aO8CnkfemrYZgFX/ OaZtvJdqtbbkN25glZTeP7wuV//uXSkPdr7zTqaL+005U0PL+EUzlfYZR4AzdhI2 D2AMEDfVwwbMrB/hI8sk01XKmEXFfBkX3Acy9svLqi2TOvFCqjnBcV/E5K+eklDs lY5KoklziRKw2FpckOdKYPiyjWbTC02s7Co4QXdkkSoZm69HDGuBlchH2JNyDrer Dyarp5btGzkVMZy5q9avIsBgFE1RRVCEnGLaSzMi1qtNaorCTYs5FJtp48yFfmzi O1X6XOGYDS4nGl782sfxjkOaUNOdbQ== =vN7o -----END PGP SIGNATURE----- Merge tag 'drm-intel-fixes-2021-08-12' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - GVT fix for Windows VM hang. - Display fix of 12 BPC bits for display 12 and newer. - Don't try to access some media register for fused off domains. - Fix kerneldoc build warnings. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/YRU/hnQ1sNr+j37x@intel.com |
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Jakub Kicinski
|
a9a507013a |
Merge tag 'ieee802154-for-davem-2021-08-12' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan
Stefan Schmidt says: ==================== ieee802154 for net 2021-08-12 Mostly fixes coming from bot reports. Dongliang Mu tackled some syzkaller reports in hwsim again and Takeshi Misawa a memory leak in ieee802154 raw. * tag 'ieee802154-for-davem-2021-08-12' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan: net: Fix memory leak in ieee802154_raw_deliver ieee802154: hwsim: fix GPF in hwsim_new_edge_nl ieee802154: hwsim: fix GPF in hwsim_set_edge_lqi ==================== Link: https://lore.kernel.org/r/20210812183912.1663996-1-stefan@datenfreihafen.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Babu Moger
|
064855a690 |
x86/resctrl: Fix default monitoring groups reporting
Creating a new sub monitoring group in the root /sys/fs/resctrl leads to
getting the "Unavailable" value for mbm_total_bytes and mbm_local_bytes
on the entire filesystem.
Steps to reproduce:
1. mount -t resctrl resctrl /sys/fs/resctrl/
2. cd /sys/fs/resctrl/
3. cat mon_data/mon_L3_00/mbm_total_bytes
23189832
4. Create sub monitor group:
mkdir mon_groups/test1
5. cat mon_data/mon_L3_00/mbm_total_bytes
Unavailable
When a new monitoring group is created, a new RMID is assigned to the
new group. But the RMID is not active yet. When the events are read on
the new RMID, it is expected to report the status as "Unavailable".
When the user reads the events on the default monitoring group with
multiple subgroups, the events on all subgroups are consolidated
together. Currently, if any of the RMID reads report as "Unavailable",
then everything will be reported as "Unavailable".
Fix the issue by discarding the "Unavailable" reads and reporting all
the successful RMID reads. This is not a problem on Intel systems as
Intel reports 0 on Inactive RMIDs.
Fixes:
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Longpeng(Mike)
|
49b0b6ffe2 |
vsock/virtio: avoid potential deadlock when vsock device remove
There's a potential deadlock case when remove the vsock device or
process the RESET event:
vsock_for_each_connected_socket:
spin_lock_bh(&vsock_table_lock) ----------- (1)
...
virtio_vsock_reset_sock:
lock_sock(sk) --------------------- (2)
...
spin_unlock_bh(&vsock_table_lock)
lock_sock() may do initiative schedule when the 'sk' is owned by
other thread at the same time, we would receivce a warning message
that "scheduling while atomic".
Even worse, if the next task (selected by the scheduler) try to
release a 'sk', it need to request vsock_table_lock and the deadlock
occur, cause the system into softlockup state.
Call trace:
queued_spin_lock_slowpath
vsock_remove_bound
vsock_remove_sock
virtio_transport_release
__vsock_release
vsock_release
__sock_release
sock_close
__fput
____fput
So we should not require sk_lock in this case, just like the behavior
in vhost_vsock or vmci.
Fixes:
|
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Linus Torvalds
|
f8fbb47c6e |
Merge branch 'for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull ucounts fix from Eric Biederman: "This fixes the ucount sysctls on big endian architectures. The counts were expanded to be longs instead of ints, and the sysctl code was overlooked, so only the low 32bit were being processed. On litte endian just processing the low 32bits is fine, but on 64bit big endian processing just the low 32bits results in the high order bits instead of the low order bits being processed and nothing works proper. This change took a little bit to mature as we have the SYSCTL_ZERO, and SYSCTL_INT_MAX macros that are only usable for sysctls operating on ints, but unfortunately are not obviously broken. Which resulted in the versions of this change working on big endian and not on little endian, because the int SYSCTL_ZERO when extended 64bit wound up being 0x100000000. So we only allowed values greater than 0x100000000 and less than 0faff. Which unfortunately broken everything that tried to set the sysctls. (First reported with the windows subsystem for linux). I have tested this on x86_64 64bit after first reproducing the problems with the earlier version of this change, and then verifying the problems do not exist when we use appropriate long min and max values for extra1 and extra2" * 'for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: ucounts: add missing data type changes |