It is not clear that IMA should be nested at all, but as long is it
measures files both on overlayfs and on underlying fs, we need to
annotate the iint mutex to avoid lockdep false positives related to
IMA + overlayfs, same as overlayfs annotates the inode mutex.
Reported-and-tested-by: syzbot+b42fe626038981fb7bfa@syzkaller.appspotmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
As Linus pointed out [1], lockref_put_return() is fundamentally
designed to be something that can fail. It behaves as a fastpath-only
thing, and the failure case needs to be handled anyway.
Actually, since the new pcluster was just allocated without being
populated, it won't be accessed by others until it is inserted into
XArray, so lockref helpers are actually unneeded here.
Let's just set the proper reference count on initializing.
[1] https://lore.kernel.org/r/CAHk-=whCga8BeQnJ3ZBh_Hfm9ctba_wpF444LpwRybVNMzO6Dw@mail.gmail.com
Fixes: 7674a42f35 ("erofs: use struct lockref to replace handcrafted approach")
Reviewed-by: Chao Yu <chao@kernel.org>
Link: https://lore.kernel.org/r/20231031060524.1103921-1-hsiangkao@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
More updates for v6,7 following the early merge request:
- Fixes for handling of component name prefixing when name prefixes
are used by the machine driver.
- Fixes for noise when stopping some Sounwire CODECs.
- Support for AMD ACP 6.3 and 7.0, Awinc AW88399, more Intel
platforms and more Qualcomm SC7180 platforms.
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Merge tag 'asoc-v6.7-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v6.7
More updates for v6,7 following the early merge request:
- Fixes for handling of component name prefixing when name prefixes
are used by the machine driver.
- Fixes for noise when stopping some Sounwire CODECs.
- Support for AMD ACP 6.3 and 7.0, Awinc AW88399, more Intel
platforms and more Qualcomm SC7180 platforms.
* cpuset now supports remote partitions where CPUs can be reserved for
exclusive use down the tree without requiring all the intermediate nodes
to be partitions. This makes it easier to use partitions without modifying
existing cgroup hierarchy.
* cpuset partition configuration behavior improvement.
* cgroup_favordynmods= boot param added to allow setting the flag on boot on
cgroup1.
* Misc code and doc updates.
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Merge tag 'cgroup-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
- cpuset now supports remote partitions where CPUs can be reserved for
exclusive use down the tree without requiring all the intermediate
nodes to be partitions. This makes it easier to use partitions
without modifying existing cgroup hierarchy.
- cpuset partition configuration behavior improvement
- cgroup_favordynmods= boot param added to allow setting the flag on
boot on cgroup1
- Misc code and doc updates
* tag 'cgroup-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
docs/cgroup: Add the list of threaded controllers to cgroup-v2.rst
cgroup: use legacy_name for cgroup v1 disable info
cgroup/cpuset: Cleanup signedness issue in cpu_exclusive_check()
cgroup/cpuset: Enable invalid to valid local partition transition
cgroup: add cgroup_favordynmods= command-line option
cgroup/cpuset: Extend test_cpuset_prs.sh to test remote partition
cgroup/cpuset: Documentation update for partition
cgroup/cpuset: Check partition conflict with housekeeping setup
cgroup/cpuset: Introduce remote partition
cgroup/cpuset: Add cpuset.cpus.exclusive for v2
cgroup/cpuset: Add cpuset.cpus.exclusive.effective for v2
cgroup/cpuset: Fix load balance state in update_partition_sd_lb()
cgroup: Avoid extra dereference in css_populate_dir()
cgroup: Check for ret during cgroup1_base_files cft addition
Just one commit to improve lockdep annotation for work_on_cpu() to avoid
spurious warnings. I'll send another pull request for workqueue rust
binding.
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Merge tag 'wq-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue update from Tejun Heo:
"Just one commit to improve lockdep annotation for work_on_cpu() to
avoid spurious warnings"
* tag 'wq-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Provide one lock class key per work_on_cpu() callsite
to allow rust code to schedule work items on workqueues. While the current
bindings don't cover all of the workqueue API, it provides enough for basic
usage and can be expanded as needed.
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Merge tag 'wq-for-6.7-rust-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue rust bindings from Tejun Heo:
"Add rust bindings to allow rust code to schedule work items on
workqueues.
While the current bindings don't cover all of the workqueue API, it
provides enough for basic usage and can be expanded as needed"
* tag 'wq-for-6.7-rust-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
rust: workqueue: add examples
rust: workqueue: add `try_spawn` helper method
rust: workqueue: implement `WorkItemPointer` for pointer types
rust: workqueue: add helper for defining work_struct fields
rust: workqueue: define built-in queues
rust: workqueue: add low-level workqueue bindings
rust: sync: add `Arc::{from_raw, into_raw}`
A small one compared to the previous one in terms of features. In terms
of lines, as usual, the 'alloc' version upgrade accounts for most of them.
Toolchain and infrastructure:
- Upgrade to Rust 1.73.0.
This time around, due to how the kernel and Rust schedules have
aligned, there are two upgrades in fact. They contain the fixes for
a few issues we reported to the Rust project.
In addition, a few cleanups indicated by the upgraded compiler
or possible thanks to it. For instance, the compiler now detects
redundant explicit links.
- A couple changes to the Rust 'Makefile' so that it can be used with
toybox tools, allowing Rust to be used in the Android kernel build.
x86:
- Enable IBT if enabled in C.
Documentation:
- Add "The Rust experiment" section to the Rust index page.
MAINTAINERS
- Add Maintainer Entry Profile field ('P:').
- Update our 'W:' field to point to the webpage we have been building
this year.
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Merge tag 'rust-6.7' of https://github.com/Rust-for-Linux/linux
Pull rust updates from Miguel Ojeda:
"A small one compared to the previous one in terms of features. In
terms of lines, as usual, the 'alloc' version upgrade accounts for
most of them.
Toolchain and infrastructure:
- Upgrade to Rust 1.73.0
This time around, due to how the kernel and Rust schedules have
aligned, there are two upgrades in fact. They contain the fixes for
a few issues we reported to the Rust project.
In addition, a few cleanups indicated by the upgraded compiler or
possible thanks to it. For instance, the compiler now detects
redundant explicit links.
- A couple changes to the Rust 'Makefile' so that it can be used with
toybox tools, allowing Rust to be used in the Android kernel build.
x86:
- Enable IBT if enabled in C
Documentation:
- Add "The Rust experiment" section to the Rust index page
MAINTAINERS:
- Add Maintainer Entry Profile field ('P:').
- Update our 'W:' field to point to the webpage we have been building
this year"
* tag 'rust-6.7' of https://github.com/Rust-for-Linux/linux:
docs: rust: add "The Rust experiment" section
x86: Enable IBT in Rust if enabled in C
rust: Use grep -Ev rather than relying on GNU grep
rust: Use awk instead of recent xargs
rust: upgrade to Rust 1.73.0
rust: print: use explicit link in documentation
rust: task: remove redundant explicit link
rust: kernel: remove `#[allow(clippy::new_ret_no_self)]`
MAINTAINERS: add Maintainer Entry Profile field for Rust
MAINTAINERS: update Rust webpage
rust: upgrade to Rust 1.72.1
rust: arc: add explicit `drop()` around `Box::from_raw()`
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Merge tag 'lsm-pr-20231030' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull LSM updates from Paul Moore:
- Add new credential functions, get_cred_many() and put_cred_many() to
save some atomic_t operations for a few operations.
While not strictly LSM related, this patchset had been rotting on the
mailing lists for some time and since the LSMs do care a lot about
credentials I thought it reasonable to give this patch a home.
- Five patches to constify different LSM hook parameters.
- Fix a spelling mistake.
* tag 'lsm-pr-20231030' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
lsm: fix a spelling mistake
cred: add get_cred_many and put_cred_many
lsm: constify 'sb' parameter in security_sb_kern_mount()
lsm: constify 'bprm' parameter in security_bprm_committed_creds()
lsm: constify 'bprm' parameter in security_bprm_committing_creds()
lsm: constify 'file' parameter in security_bprm_creds_from_file()
lsm: constify 'sb' parameter in security_quotactl()
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Merge tag 'selinux-pr-20231030' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:
- improve the SELinux debugging configuration controls in Kconfig
- print additional information about the hash table chain lengths when
when printing SELinux debugging information
- simplify the SELinux access vector hash table calcaulations
- use a better hashing function for the SELinux role tansition hash
table
- improve SELinux load policy time through the use of optimized
functions for calculating the number of bits set in a field
- addition of a __counted_by annotation
- simplify the avtab_inert_node() function through a simplified
prototype
* tag 'selinux-pr-20231030' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: simplify avtab_insert_node() prototype
selinux: hweight optimization in avtab_read_item
selinux: improve role transition hashing
selinux: simplify avtab slot calculation
selinux: improve debug configuration
selinux: print sum of chain lengths^2 for hash tables
selinux: Annotate struct sidtab_str_cache with __counted_by
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Merge tag 'audit-pr-20231030' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit update from Paul Moore:
"Only two audit patches for v6.7, both fairly small with a combined 11
lines of changes.
The first patch is a simple __counted_by annontation, and the second
fixes a a problem where audit could deadlock on task_lock() when an
exe filter is configured. More information is available in the commit
description and the patch is tagged for stable"
* tag 'audit-pr-20231030' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: don't take task_lock() in audit_exe_compare() code path
audit: Annotate struct audit_chunk with __counted_by
This is a small sized pull request. One commit I would like to pinpoint
is my fix for init_trusted() rollback, as for actual patch I did not
receive any feedback. I think it is a no-brainer but can also send a
new pull request if required.
BR, Jarkko
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Merge tag 'tpmdd-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm updates from Jarkko Sakkinen:
"This is a small sized pull request. One commit I would like to
pinpoint is my fix for init_trusted() rollback, as for actual patch I
did not receive any feedback"
* tag 'tpmdd-v6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
keys: Remove unused extern declarations
integrity: powerpc: Do not select CA_MACHINE_KEYRING
KEYS: trusted: tee: Refactor register SHM usage
KEYS: trusted: Rollback init_trusted() consistently
- Support non-BSS ELF segments with 0 filesz (Eric W. Biederman, Kees Cook)
- Enable namespaced binfmt_misc (Christian Brauner)
- Remove struct tag 'dynamic' from ELF UAPI (Alejandro Colomar)
- Clean up binfmt_elf_fdpic debug output (Greg Ungerer)
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Merge tag 'execve-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve updates from Kees Cook:
- Support non-BSS ELF segments with zero filesz
Eric Biederman and I refactored ELF segment loading to handle the
case where a segment has a smaller filesz than memsz. Traditionally
linkers only did this for .bss and it was always the last segment. As
a result, the kernel only handled this case when it was the last
segment. We've had two recent cases where linkers were trying to use
these kinds of segments for other reasons, and the were in the middle
of the segment list. There was no good reason for the kernel not to
support this, and the refactor actually ends up making things more
readable too.
- Enable namespaced binfmt_misc
Christian Brauner has made it possible to use binfmt_misc with mount
namespaces. This means some traditionally root-only interfaces (for
adding/removing formats) are now more exposed (but believed to be
safe).
- Remove struct tag 'dynamic' from ELF UAPI
Alejandro Colomar noticed that the ELF UAPI has been polluting the
struct namespace with an unused and overly generic tag named
"dynamic" for no discernible reason for many many years. After
double-checking various distro source repositories, it has been
removed.
- Clean up binfmt_elf_fdpic debug output (Greg Ungerer)
* tag 'execve-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
binfmt_misc: enable sandboxed mounts
binfmt_misc: cleanup on filesystem umount
binfmt_elf_fdpic: clean up debug warnings
mm: Remove unused vm_brk()
binfmt_elf: Only report padzero() errors when PROT_WRITE
binfmt_elf: Use elf_load() for library
binfmt_elf: Use elf_load() for interpreter
binfmt_elf: elf_bss no longer used by load_elf_binary()
binfmt_elf: Support segments with 0 filesz and misaligned starts
elf, uapi: Remove struct tag 'dynamic'
- Add LKDTM test for stuck CPUs (Mark Rutland)
- Improve LKDTM selftest behavior under UBSan (Ricardo Cañuelo)
- Refactor more 1-element arrays into flexible arrays (Gustavo A. R. Silva)
- Analyze and replace strlcpy and strncpy uses (Justin Stitt, Azeem Shaikh)
- Convert group_info.usage to refcount_t (Elena Reshetova)
- Add __counted_by annotations (Kees Cook, Gustavo A. R. Silva)
- Add Kconfig fragment for basic hardening options (Kees Cook, Lukas Bulwahn)
- Fix randstruct GCC plugin performance mode to stay in groups (Kees Cook)
- Fix strtomem() compile-time check for small sources (Kees Cook)
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Merge tag 'hardening-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
"One of the more voluminous set of changes is for adding the new
__counted_by annotation[1] to gain run-time bounds checking of
dynamically sized arrays with UBSan.
- Add LKDTM test for stuck CPUs (Mark Rutland)
- Improve LKDTM selftest behavior under UBSan (Ricardo Cañuelo)
- Refactor more 1-element arrays into flexible arrays (Gustavo A. R.
Silva)
- Analyze and replace strlcpy and strncpy uses (Justin Stitt, Azeem
Shaikh)
- Convert group_info.usage to refcount_t (Elena Reshetova)
- Add __counted_by annotations (Kees Cook, Gustavo A. R. Silva)
- Add Kconfig fragment for basic hardening options (Kees Cook, Lukas
Bulwahn)
- Fix randstruct GCC plugin performance mode to stay in groups (Kees
Cook)
- Fix strtomem() compile-time check for small sources (Kees Cook)"
* tag 'hardening-v6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (56 commits)
hwmon: (acpi_power_meter) replace open-coded kmemdup_nul
reset: Annotate struct reset_control_array with __counted_by
kexec: Annotate struct crash_mem with __counted_by
virtio_console: Annotate struct port_buffer with __counted_by
ima: Add __counted_by for struct modsig and use struct_size()
MAINTAINERS: Include stackleak paths in hardening entry
string: Adjust strtomem() logic to allow for smaller sources
hardening: x86: drop reference to removed config AMD_IOMMU_V2
randstruct: Fix gcc-plugin performance mode to stay in group
mailbox: zynqmp: Annotate struct zynqmp_ipi_pdata with __counted_by
drivers: thermal: tsens: Annotate struct tsens_priv with __counted_by
irqchip/imx-intmux: Annotate struct intmux_data with __counted_by
KVM: Annotate struct kvm_irq_routing_table with __counted_by
virt: acrn: Annotate struct vm_memory_region_batch with __counted_by
hwmon: Annotate struct gsc_hwmon_platform_data with __counted_by
sparc: Annotate struct cpuinfo_tree with __counted_by
isdn: kcapi: replace deprecated strncpy with strscpy_pad
isdn: replace deprecated strncpy with strscpy
NFS/flexfiles: Annotate struct nfs4_ff_layout_segment with __counted_by
nfs41: Annotate struct nfs4_file_layout_dsaddr with __counted_by
...
- Valid VRAM regions are read from GSP-RM, and used to construct our MM
- BAR1/BAR2 VMMs modified to be shared with RM
- Client VMMs have RM VASPACE objects created for them
- Adds FBSR to backup system objects in VRAM across suspend
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-37-skeggsb@gmail.com
Adds the plumbing to be able to allocate and free RM objects, and
implements RM client/device/subdevice allocation with it.
These will be used by subsequent patches.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-35-skeggsb@gmail.com
Adds the plumbing to start making RM control calls, and initialises
objects to represent internal RM objects provided to us during init.
These will be used by subsequent patches.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-34-skeggsb@gmail.com
This commit adds the initial code needed to boot the GSP-RM firmware
provided by NVIDIA, bringing with it the beginnings of Ada support.
Until it's had more testing and time to bake, support is disabled by
default (except on Ada). GSP-RM usage can be enabled by passing the
"config=NvGspRm=1" module option.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-33-skeggsb@gmail.com
- on HW, parts of this will still be used to support LVDS
- LVDS appears to have dissapeared before Turing, so this won't be
needed at all when running on RM
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-31-skeggsb@gmail.com
- (temporarily) disable if GSP-RM detected, will be added later
- provide empty class list for non-GSP paths
- split tu102 from gm107, it will provide host classes later
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-29-skeggsb@gmail.com
- (temporarily) disable if GSP-RM detected, will be added later
- provide empty class list for non-GSP paths
- split tu102- from gm107, they will provide host classes later
- fixup HW engine instance masks
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-28-skeggsb@gmail.com
- (temporarily) disable if GSP-RM detected, will be added later
- add dtor() so GSP-RM paths can cleanup properly
- add alternate engine context mapping interface for RM engines
- add alternate chid interfaces to handle RM USERD oddities
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-26-skeggsb@gmail.com
