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236,237 commits

Author SHA1 Message Date
Jakub Kicinski
5ef04a7b06 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.17-rc5).

No conflicts.

Adjacent changes:

include/net/sock.h
  c51613fa27 ("net: add sk->sk_drop_counters")
  5d6b58c932 ("net: lockless sock_i_ino()")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-04 13:33:00 -07:00
Linus Torvalds
d69eb204c2 Including fixes from netfilter, wireless and Bluetooth.
We're reverting the removal of a Sundance driver, a user has appeared.
 This makes the PR rather large in terms of LoC.
 
 There's a conspicuous absence of real, user-reported 6.17 issues.
 Slightly worried that the summer distracted people from testing.
 
 Previous releases - regressions:
 
  - ax25: properly unshare skbs in ax25_kiss_rcv()
 
 Previous releases - always broken:
 
  - phylink: disable autoneg for interfaces that have no inband,
    fix regression on pcs-lynx (NXP LS1088)
 
  - vxlan: fix null-deref when using nexthop objects
 
  - batman-adv: fix OOB read/write in network-coding decode
 
  - icmp: icmp_ndo_send: fix reversing address translation for replies
 
  - tcp: fix socket ref leak in TCP-AO failure handling for IPv6
 
  - mctp:
    - mctp_fraq_queue should take ownership of passed skb
    - usb: initialise mac header in RX path, avoid WARN
 
  - wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz,
    respect device limitations
 
  - wifi: wilc1000: avoid buffer overflow in WID string configuration
 
  - wifi: mt76:
    - fix regressions from mt7996 MLO support rework
    - fix offchannel handling issues on mt7996
    - fix multiple wcid linked list corruption issues
    - mt7921: don't disconnect when AP requests switch to a channel which
      requires radar detection
    - mt7925u: use connac3 tx aggr check in tx complete
 
  - wifi: intel:
    - improve validation of ACPI DSM data
    - cfg: restore some 1000 series configs
 
  - wifi: ath:
    - ath11k: a fix for GTK rekeying
    - ath12k: a missed WiFi7 capability (multi-link EMLSR)
 
  - eth: intel:
    - ice: fix races in "low latency" firmware interface for Tx timestamps
    - idpf: set mac type when adding and removing MAC filters
    - i40e: remove racy read access to some debugfs files
 
 Misc:
 
  - Revert "eth: remove the DLink/Sundance (ST201) driver"
 
  - netfilter: conntrack: helper: Replace -EEXIST by -EBUSY, avoid confusing
    modprobe
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from netfilter, wireless and Bluetooth.

  We're reverting the removal of a Sundance driver, a user has appeared.
  This makes the PR rather large in terms of LoC.

  There's a conspicuous absence of real, user-reported 6.17 issues.
  Slightly worried that the summer distracted people from testing.

  Previous releases - regressions:

   - ax25: properly unshare skbs in ax25_kiss_rcv()

  Previous releases - always broken:

   - phylink: disable autoneg for interfaces that have no inband, fix
     regression on pcs-lynx (NXP LS1088)

   - vxlan: fix null-deref when using nexthop objects

   - batman-adv: fix OOB read/write in network-coding decode

   - icmp: icmp_ndo_send: fix reversing address translation for replies

   - tcp: fix socket ref leak in TCP-AO failure handling for IPv6

   - mctp:
       - mctp_fraq_queue should take ownership of passed skb
       - usb: initialise mac header in RX path, avoid WARN

   - wifi: mac80211: do not permit 40 MHz EHT operation on 5/6 GHz,
     respect device limitations

   - wifi: wilc1000: avoid buffer overflow in WID string configuration

   - wifi: mt76:
       - fix regressions from mt7996 MLO support rework
       - fix offchannel handling issues on mt7996
       - fix multiple wcid linked list corruption issues
       - mt7921: don't disconnect when AP requests switch to a channel
         which requires radar detection
       - mt7925u: use connac3 tx aggr check in tx complete

   - wifi: intel:
       - improve validation of ACPI DSM data
       - cfg: restore some 1000 series configs

   - wifi: ath:
       - ath11k: a fix for GTK rekeying
       - ath12k: a missed WiFi7 capability (multi-link EMLSR)

   - eth: intel:
       - ice: fix races in "low latency" firmware interface for Tx timestamps
       - idpf: set mac type when adding and removing MAC filters
       - i40e: remove racy read access to some debugfs files

  Misc:

   - Revert "eth: remove the DLink/Sundance (ST201) driver"

   - netfilter: conntrack: helper: Replace -EEXIST by -EBUSY, avoid
     confusing modprobe"

* tag 'net-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (99 commits)
  phy: mscc: Stop taking ts_lock for tx_queue and use its own lock
  selftest: net: Fix weird setsockopt() in bind_bhash.c.
  MAINTAINERS: add Sabrina to TLS maintainers
  gve: update MAINTAINERS
  ppp: fix memory leak in pad_compress_skb
  net: xilinx: axienet: Add error handling for RX metadata pointer retrieval
  net: atm: fix memory leak in atm_register_sysfs when device_register fail
  netfilter: nf_tables: Introduce NFTA_DEVICE_PREFIX
  selftests: netfilter: fix udpclash tool hang
  ax25: properly unshare skbs in ax25_kiss_rcv()
  mctp: return -ENOPROTOOPT for unknown getsockopt options
  net/smc: Remove validation of reserved bits in CLC Decline message
  ipv4: Fix NULL vs error pointer check in inet_blackhole_dev_init()
  net: thunder_bgx: decrement cleanup index before use
  net: thunder_bgx: add a missing of_node_put
  net: phylink: move PHY interrupt request to non-fail path
  net: lockless sock_i_ino()
  tools: ynl-gen: fix nested array counting
  wifi: wilc1000: avoid buffer overflow in WID string configuration
  wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
  ...
2025-09-04 09:59:15 -07:00
Linus Torvalds
b9a10f8764 soc: fixes for 6.17, part 2
These are mainly devicetree fixes for the rockchip and nxp platforms on
 arm64, addressing mistakes in the board and soc specific descriptions.
 In particular the newly added Rock 5T board required multiple bugfixes for
 PCIe and USB, while on the i.MX platform there are a number of regulator
 related fixes. The only other platforms with devicetree fixes are at91
 with a fixup for SD/MMC and a change to enable all the available UARTS
 on the Axiado reference board.
 
 Also on the at91 platform, a Kconfig change addresses a regression that
 stopped the DMA engine from working in 6.17-rc.
 
 Three drivers each have a simple bugfix, stopping incorrect behavior in
 op-tee firmware, the tee subsystem and the qualcomm mdt_loader.
 
 Two trivial MAINTAINERS file changes are needed to make sure that
 patches reach the correct maintainer, but don't change the actual
 responsibilities.
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Merge tag 'soc-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "These are mainly devicetree fixes for the rockchip and nxp platforms
  on arm64, addressing mistakes in the board and soc specific
  descriptions.

  In particular the newly added Rock 5T board required multiple bugfixes
  for PCIe and USB, while on the i.MX platform there are a number of
  regulator related fixes. The only other platforms with devicetree
  fixes are at91 with a fixup for SD/MMC and a change to enable all the
  available UARTS on the Axiado reference board.

  Also on the at91 platform, a Kconfig change addresses a regression
  that stopped the DMA engine from working in 6.17-rc.

  Three drivers each have a simple bugfix, stopping incorrect behavior
  in op-tee firmware, the tee subsystem and the qualcomm mdt_loader.

  Two trivial MAINTAINERS file changes are needed to make sure that
  patches reach the correct maintainer, but don't change the actual
  responsibilities"

* tag 'soc-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (27 commits)
  ARM: dts: microchip: sama7d65: Force SDMMC Legacy mode
  ARM: at91: select ARCH_MICROCHIP
  arm64: dts: rockchip: fix second M.2 slot on ROCK 5T
  arm64: dts: rockchip: fix USB on RADXA ROCK 5T
  MAINTAINERS: exclude defconfig from ARM64 PORT
  arm64: dts: axiado: Add missing UART aliases
  MAINTAINERS: Update Nobuhiro Iwamatsu's email address
  arm64: dts: rockchip: Add vcc-supply to SPI flash on Pinephone Pro
  arm64: dts: rockchip: fix es8388 address on rk3588s-roc-pc
  arm64: dts: rockchip: Fix Bluetooth interrupts flag on Neardi LBA3368
  arm64: dts: rockchip: correct network description on Sige5
  arm64: dts: rockchip: Minor whitespace cleanup
  ARM: dts: rockchip: Minor whitespace cleanup
  arm64: dts: rockchip: Add supplies for eMMC on rk3588-orangepi-5
  arm64: dts: rockchip: Fix the headphone detection on the orangepi 5 plus
  arm64: dts: imx95: Fix JPEG encoder node assigned clock
  arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2
  arm64: dts: imx8mp: Fix missing microSD slot vqmmc on Data Modul i.MX8M Plus eDM SBC
  arm64: dts: imx8mp: Fix missing microSD slot vqmmc on DH electronics i.MX8M Plus DHCOM
  arm64: dts: imx8mp-tqma8mpql: remove virtual 3.3V regulator
  ...
2025-09-03 14:44:34 -07:00
Arnd Bergmann
875691ceb8 Microchip AT91 fixes for v6.17
This update includes:
 - adaptation to the SDHCI capabilities on sama7d65 curiosity board DT as
   SDHCI quirks are not in place yet. SD/MMC don't work without these
 - addition of one Kconfig symbol that is already used in DMA tree for
   6.17. XDMA cannot be selected if not present.
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Merge tag 'at91-fixes-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/fixes

Microchip AT91 fixes for v6.17

This update includes:
- adaptation to the SDHCI capabilities on sama7d65 curiosity board DT as
  SDHCI quirks are not in place yet. SD/MMC don't work without these
- addition of one Kconfig symbol that is already used in DMA tree for
  6.17. XDMA cannot be selected if not present.

* tag 'at91-fixes-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: dts: microchip: sama7d65: Force SDMMC Legacy mode
  ARM: at91: select ARCH_MICROCHIP

Link: https://lore.kernel.org/r/20250903173403.113604-1-nicolas.ferre@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-09-03 23:02:54 +02:00
Ryan Wanner
217efb4409 ARM: dts: microchip: sama7d65: Force SDMMC Legacy mode
The SDMMC in this IP currently only supports legacy mode
due to a hardware quirk, setting the flags to reflect the limitation.

Fixes: deaa14ab6b ("ARM: dts: microchip: add support for sama7d65_curiosity board")
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20250819170528.126010-1-Ryan.Wanner@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2025-09-03 18:52:08 +02:00
Robert Marko
d302effafa ARM: at91: select ARCH_MICROCHIP
Like with the ARM64 Microchip platforms, lets add a generic ARCH_MICROCHIP
symbol and select it so that drivers that are reused for multiple product
generation or lines, can just depend on it instead of adding each SoC
symbol as their dependencies.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Daniel Machon <daniel.machon@microchip.com>
Link: https://lore.kernel.org/r/20250813174720.540015-3-robert.marko@sartura.hr
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2025-09-03 18:51:00 +02:00
Arnd Bergmann
f2e8f1f5f5 The newly added Rock 5T board needed slightly bigger fixes to make the
PCIe and USB actually work, because the PCIe does share its lanes between
 two ports and the usb needs to toggle a gpio to supply power.
 
 The other interesting fix is the headphone detection on the Orange Pi 5+.
 
 The rest are some added supplies to make the boot log less scary and a
 number of styling fixes.
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Merge tag 'v6.17-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes

The newly added Rock 5T board needed slightly bigger fixes to make the
PCIe and USB actually work, because the PCIe does share its lanes between
two ports and the usb needs to toggle a gpio to supply power.

The other interesting fix is the headphone detection on the Orange Pi 5+.

The rest are some added supplies to make the boot log less scary and a
number of styling fixes.

* tag 'v6.17-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: fix second M.2 slot on ROCK 5T
  arm64: dts: rockchip: fix USB on RADXA ROCK 5T
  arm64: dts: rockchip: Add vcc-supply to SPI flash on Pinephone Pro
  arm64: dts: rockchip: fix es8388 address on rk3588s-roc-pc
  arm64: dts: rockchip: Fix Bluetooth interrupts flag on Neardi LBA3368
  arm64: dts: rockchip: correct network description on Sige5
  arm64: dts: rockchip: Minor whitespace cleanup
  ARM: dts: rockchip: Minor whitespace cleanup
  arm64: dts: rockchip: Add supplies for eMMC on rk3588-orangepi-5
  arm64: dts: rockchip: Fix the headphone detection on the orangepi 5 plus
  arm64: dts: rockchip: Add vcc-supply to SPI flash on rk3399-pinebook-pro
  arm64: dts: rockchip: mark eeprom as read-only for Radxa E52C

Link: https://lore.kernel.org/r/5909239.Y6S9NjorxK@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-09-03 17:29:40 +02:00
Jakub Kicinski
8b3332c133 Revert "eth: remove the DLink/Sundance (ST201) driver"
This reverts commit 8401a108a6.

I got a report from an (anonymous) Sundance user:

  Ethernet controller: Sundance Technology Inc / IC Plus Corp IC Plus IP100A Integrated 10/100 Ethernet MAC + PHY (rev 31)

Revert the driver back in. Make following changes:
 - update Denis's email address in MAINTAINERS
 - adjust to timer API renames:
   - del_timer_sync() -> timer_delete_sync()
   - from_timer() -> timer_container_of()

Fixes: 8401a108a6 ("eth: remove the DLink/Sundance (ST201) driver")
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250901210818.1025316-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02 15:49:41 -07:00
Linus Torvalds
8026aed072 17 hotfixes. 13 are cc:stable and the remainder address post-6.16 issues
or aren't considered necessary for -stable kernels.  11 of these fixes are
 for MM.
 
 This includes a three-patch series from Harry Yoo which fixes an
 intermittent boot failure which can occur on x86 systems.  And a two-patch
 series from Alexander Gordeev which fixes a KASAN crash on S390 systems.
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Merge tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "17 hotfixes. 13 are cc:stable and the remainder address post-6.16
  issues or aren't considered necessary for -stable kernels. 11 of these
  fixes are for MM.

  This includes a three-patch series from Harry Yoo which fixes an
  intermittent boot failure which can occur on x86 systems. And a
  two-patch series from Alexander Gordeev which fixes a KASAN crash on
  S390 systems"

* tag 'mm-hotfixes-stable-2025-09-01-17-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: fix possible deadlock in kmemleak
  x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings()
  mm: introduce and use {pgd,p4d}_populate_kernel()
  mm: move page table sync declarations to linux/pgtable.h
  proc: fix missing pde_set_flags() for net proc files
  mm: fix accounting of memmap pages
  mm/damon/core: prevent unnecessary overflow in damos_set_effective_quota()
  kexec: add KEXEC_FILE_NO_CMA as a legal flag
  kasan: fix GCC mem-intrinsic prefix with sw tags
  mm/kasan: avoid lazy MMU mode hazards
  mm/kasan: fix vmalloc shadow memory (de-)population races
  kunit: kasan_test: disable fortify string checker on kasan_strings() test
  selftests/mm: fix FORCE_READ to read input value correctly
  mm/userfaultfd: fix kmap_local LIFO ordering for CONFIG_HIGHPTE
  ocfs2: prevent release journal inode after journal shutdown
  rust: mm: mark VmaNew as transparent
  of_numa: fix uninitialized memory nodes causing kernel panic
2025-09-02 13:18:00 -07:00
Nicolas Frattaroli
dcc6785caf arm64: dts: rockchip: fix second M.2 slot on ROCK 5T
The Radxa ROCK 5T has two M.2 slots, much like the Radxa Rock 5B+. As it
stands, the board won't be able to use PCIe3 if the second M.2 slot is
in use.

Fix this by adding the necessary node enablement and data-lanes property
to the ROCK 5T device tree, mirroring what's in the ROCK 5B+ device
tree.

Reported-by: FUKAUMI Naoki <naoki@radxa.com>
Closes: https://libera.catirclogs.org/linux-rockchip/2025-08-25#38610630;
Fixes: 0ea651de9b ("arm64: dts: rockchip: add ROCK 5T device tree")
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/20250826-rock5t-second-m2-fix-v1-1-8252124f9cc8@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-09-02 08:31:50 +02:00
Nicolas Frattaroli
63ddc0a75b arm64: dts: rockchip: fix USB on RADXA ROCK 5T
The RADXA ROCK 5T board uses the same GPIO pin for controlling the USB
host port regulator. This control pin was mistakenly left out of the
ROCK 5T device tree.

Reported-by: FUKAUMI Naoki <naoki@radxa.com>
Closes: https://libera.catirclogs.org/linux-rockchip/2025-08-25#38609886;
Fixes: 0ea651de9b ("arm64: dts: rockchip: add ROCK 5T device tree")
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://lore.kernel.org/r/20250825-rock5t-usb-fix-v1-1-de71954a1bb5@collabora.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-09-01 12:44:23 +02:00
Harshit Shah
75e81743e3
arm64: dts: axiado: Add missing UART aliases
Axiado AX3000 EVK has total of 4 UART ports. Add missing alias for uart0,
uart1, uart2.

This fixes the probe failures on the remaining UARTs.

Fixes: 1f70557790 ("arm64: dts: axiado: Add initial support for AX3000 SoC and eval board")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Harshit Shah <hshah@axiado.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-09-01 11:33:13 +02:00
Arnd Bergmann
e019bbd8e4 i.MX fixes for 6.17:
- Correct FlexCAN PHY settings on imx95-19x19-evk board (Haibo Chen)
 - Add missing microSD slot supplies for DH electronics i.MX8M Plus
   boards (Marek Vasut)
 - Fix assigned clocks for JPEG encoder node on i.MX95 (Marek Vasut)
 - A couple of regulator setting fixes for imx8mp-tqma8mpql
   board (Markus Niebel)
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Merge tag 'imx-fixes-6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 6.17:

- Correct FlexCAN PHY settings on imx95-19x19-evk board (Haibo Chen)
- Add missing microSD slot supplies for DH electronics i.MX8M Plus
  boards (Marek Vasut)
- Fix assigned clocks for JPEG encoder node on i.MX95 (Marek Vasut)
- A couple of regulator setting fixes for imx8mp-tqma8mpql
  board (Markus Niebel)

* tag 'imx-fixes-6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  arm64: dts: imx95: Fix JPEG encoder node assigned clock
  arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2
  arm64: dts: imx8mp: Fix missing microSD slot vqmmc on Data Modul i.MX8M Plus eDM SBC
  arm64: dts: imx8mp: Fix missing microSD slot vqmmc on DH electronics i.MX8M Plus DHCOM
  arm64: dts: imx8mp-tqma8mpql: remove virtual 3.3V regulator
  arm64: dts: imx8mp-tqma8mpql: fix LDO5 power off

Link: https://lore.kernel.org/r/aK6BuzIYwUBRU1GW@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-09-01 10:41:20 +02:00
Linus Torvalds
5c3b3264e5 - Convert the SSB mitigation to the attack vector controls which got forgotten
at the time
 
 - Prevent the CPUID topology hierarchy detection on AMD from overwriting the
   correct initial APIC ID
 
 - Fix the case of a machine shipping without microcode in the BIOS, in the AMD
   microcode loader
 
 - Correct the Pentium 4 model range which has a constant TSC
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Merge tag 'x86_urgent_for_v6.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Convert the SSB mitigation to the attack vector controls which got
   forgotten at the time

 - Prevent the CPUID topology hierarchy detection on AMD from
   overwriting the correct initial APIC ID

 - Fix the case of a machine shipping without microcode in the BIOS, in
   the AMD microcode loader

 - Correct the Pentium 4 model range which has a constant TSC

* tag 'x86_urgent_for_v6.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bugs: Add attack vector controls for SSB
  x86/cpu/topology: Use initial APIC ID from XTOPOLOGY leaf on AMD/HYGON
  x86/microcode/AMD: Handle the case of no BIOS microcode
  x86/cpu/intel: Fix the constant_tsc model check for Pentium 4
2025-08-31 09:20:17 -07:00
Linus Torvalds
9acd5b8beb hardening fixes for v6.17-rc4
- ARM: stacktrace: include asm/sections.h in asm/stacktrace.h (Arnd Bergmann)
 
 - ubsan: Fix incorrect hand-side used in handle (Junhui Pei)
 
 - hardening: Require clang 20.1.0 for __counted_by (Nathan Chancellor)
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Merge tag 'hardening-v6.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening fixes from Kees Cook:

 - ARM: stacktrace: include asm/sections.h in asm/stacktrace.h (Arnd
   Bergmann)

 - ubsan: Fix incorrect hand-side used in handle (Junhui Pei)

 - hardening: Require clang 20.1.0 for __counted_by (Nathan Chancellor)

* tag 'hardening-v6.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  hardening: Require clang 20.1.0 for __counted_by
  ARM: stacktrace: include asm/sections.h in asm/stacktrace.h
  ubsan: Fix incorrect hand-side used in handle
2025-08-31 08:56:45 -07:00
Linus Torvalds
c8bc81a52d Two arm64 fixes:
- CFI failure due to kpti_ng_pgd_alloc() signature mismatch
 
 - Underallocation bug in the SVE ptrace kselftest
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - CFI failure due to kpti_ng_pgd_alloc() signature mismatch

 - Underallocation bug in the SVE ptrace kselftest

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  kselftest/arm64: Don't open code SVE_PT_SIZE() in fp-ptrace
  arm64: mm: Fix CFI failure due to kpti_ng_pgd_alloc function signature
2025-08-30 10:43:53 -07:00
Kees Cook
ceca927c86 arm64: mm: Fix CFI failure due to kpti_ng_pgd_alloc function signature
Seen during KPTI initialization:

  CFI failure at create_kpti_ng_temp_pgd+0x124/0xce8 (target: kpti_ng_pgd_alloc+0x0/0x14; expected type: 0xd61b88b6)

The call site is alloc_init_pud() at arch/arm64/mm/mmu.c:

  pud_phys = pgtable_alloc(TABLE_PUD);

alloc_init_pud() has the prototype:

  static void alloc_init_pud(p4d_t *p4dp, unsigned long addr, unsigned long end,
                             phys_addr_t phys, pgprot_t prot,
                             phys_addr_t (*pgtable_alloc)(enum pgtable_type),
                             int flags)

where the pgtable_alloc() prototype is declared.

The target (kpti_ng_pgd_alloc) is used in arch/arm64/kernel/cpufeature.c:

  create_kpti_ng_temp_pgd(kpti_ng_temp_pgd, __pa(alloc), KPTI_NG_TEMP_VA,
                          PAGE_SIZE, PAGE_KERNEL, kpti_ng_pgd_alloc, 0);

which is an alias for __create_pgd_mapping_locked() with prototype:

  extern __alias(__create_pgd_mapping_locked)
  void create_kpti_ng_temp_pgd(pgd_t *pgdir, phys_addr_t phys,
                               unsigned long virt,
                               phys_addr_t size, pgprot_t prot,
                               phys_addr_t (*pgtable_alloc)(enum pgtable_type),
                               int flags);

__create_pgd_mapping_locked() passes the function pointer down:

  __create_pgd_mapping_locked() -> alloc_init_p4d() -> alloc_init_pud()

But the target function (kpti_ng_pgd_alloc) has the wrong signature:

  static phys_addr_t __init kpti_ng_pgd_alloc(int shift);

The "int" should be "enum pgtable_type".

To make "enum pgtable_type" available to cpufeature.c, move
enum pgtable_type definition from arch/arm64/mm/mmu.c to
arch/arm64/include/asm/mmu.h.

Adjust kpti_ng_pgd_alloc to use "enum pgtable_type" instead of "int".
The function behavior remains identical (parameter is unused).

Fixes: c64f46ee13 ("arm64: mm: use enum to identify pgtable level instead of *_SHIFT")
Cc: <stable@vger.kernel.org> # 6.16.x
Signed-off-by: Kees Cook <kees@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250829190721.it.373-kees@kernel.org
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2025-08-30 11:30:06 +01:00
Linus Torvalds
11e7861d68 ARM:
- Correctly handle 'invariant' system registers for protected VMs
 
 - Improved handling of VNCR data aborts, including external aborts
 
 - Fixes for handling of FEAT_RAS for NV guests, providing a sane
   fault context during SEA injection and preventing the use of
   RASv1p1 fault injection hardware
 
 - Ensure that page table destruction when a VM is destroyed gives an
   opportunity to reschedule
 
 - Large fix to KVM's infrastructure for managing guest context loaded
   on the CPU, addressing issues where the output of AT emulation
   doesn't get reflected to the guest
 
 - Fix AT S12 emulation to actually perform stage-2 translation when
   necessary
 
 - Avoid attempting vLPI irqbypass when GICv4 has been explicitly
   disabled for a VM
 
 - Minor KVM + selftest fixes
 
 RISC-V:
 
 - Fix pte settings within kvm_riscv_gstage_ioremap()
 
 - Fix comments in kvm_riscv_check_vcpu_requests()
 
 - Fix stack overrun when setting vlenb via ONE_REG
 
 x86:
 
 - Use array_index_nospec() to sanitize the target vCPU ID when handling PV
   IPIs and yields as the ID is guest-controlled.
 
 - Drop a superfluous cpumask_empty() check when reclaiming SEV memory, as
   the common case, by far, is that at least one CPU will have entered the
   VM, and wbnoinvd_on_cpus_mask() will naturally handle the rare case where
   the set of have_run_cpus is empty.
 
 Selftests (not KVM):
 
 - Rename the is_signed_type() macro in kselftest_harness.h to is_signed_var()
   to fix a collision with linux/overflow.h.  The collision generates compiler
   warnings due to the two macros having different meaning.
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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:

   - Correctly handle 'invariant' system registers for protected VMs

   - Improved handling of VNCR data aborts, including external aborts

   - Fixes for handling of FEAT_RAS for NV guests, providing a sane
     fault context during SEA injection and preventing the use of
     RASv1p1 fault injection hardware

   - Ensure that page table destruction when a VM is destroyed gives an
     opportunity to reschedule

   - Large fix to KVM's infrastructure for managing guest context loaded
     on the CPU, addressing issues where the output of AT emulation
     doesn't get reflected to the guest

   - Fix AT S12 emulation to actually perform stage-2 translation when
     necessary

   - Avoid attempting vLPI irqbypass when GICv4 has been explicitly
     disabled for a VM

   - Minor KVM + selftest fixes

  RISC-V:

   - Fix pte settings within kvm_riscv_gstage_ioremap()

   - Fix comments in kvm_riscv_check_vcpu_requests()

   - Fix stack overrun when setting vlenb via ONE_REG

  x86:

   - Use array_index_nospec() to sanitize the target vCPU ID when
     handling PV IPIs and yields as the ID is guest-controlled.

   - Drop a superfluous cpumask_empty() check when reclaiming SEV
     memory, as the common case, by far, is that at least one CPU will
     have entered the VM, and wbnoinvd_on_cpus_mask() will naturally
     handle the rare case where the set of have_run_cpus is empty.

  Selftests (not KVM):

   - Rename the is_signed_type() macro in kselftest_harness.h to
     is_signed_var() to fix a collision with linux/overflow.h. The
     collision generates compiler warnings due to the two macros having
     different meaning"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (29 commits)
  KVM: arm64: nv: Fix ATS12 handling of single-stage translation
  KVM: arm64: Remove __vcpu_{read,write}_sys_reg_{from,to}_cpu()
  KVM: arm64: Fix vcpu_{read,write}_sys_reg() accessors
  KVM: arm64: Simplify sysreg access on exception delivery
  KVM: arm64: Check for SYSREGS_ON_CPU before accessing the 32bit state
  RISC-V: KVM: fix stack overrun when loading vlenb
  RISC-V: KVM: Correct kvm_riscv_check_vcpu_requests() comment
  RISC-V: KVM: Fix pte settings within kvm_riscv_gstage_ioremap()
  KVM: arm64: selftests: Sync ID_AA64MMFR3_EL1 in set_id_regs
  KVM: arm64: Get rid of ARM64_FEATURE_MASK()
  KVM: arm64: Make ID_AA64PFR1_EL1.RAS_frac writable
  KVM: arm64: Make ID_AA64PFR0_EL1.RAS writable
  KVM: arm64: Ignore HCR_EL2.FIEN set by L1 guest's EL2
  KVM: arm64: Handle RASv1p1 registers
  arm64: Add capability denoting FEAT_RASv1p1
  KVM: arm64: Reschedule as needed when destroying the stage-2 page-tables
  KVM: arm64: Split kvm_pgtable_stage2_destroy()
  selftests: harness: Rename is_signed_type() to avoid collision with overflow.h
  KVM: SEV: don't check have_run_cpus in sev_writeback_caches()
  KVM: arm64: Correctly populate FAR_EL2 on nested SEA injection
  ...
2025-08-29 13:54:26 -07:00
Jakub Kicinski
d23ad54de7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.17-rc4).

No conflicts.

Adjacent changes:

drivers/net/ethernet/intel/idpf/idpf_txrx.c
  02614eee26 ("idpf: do not linearize big TSO packets")
  6c4e684802 ("idpf: remove obsolete stashing code")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-29 11:48:01 -07:00
Paolo Bonzini
42a0305ab1 KVM/arm64 changes for 6.17, take #2
- Correctly handle 'invariant' system registers for protected VMs
 
  - Improved handling of VNCR data aborts, including external aborts
 
  - Fixes for handling of FEAT_RAS for NV guests, providing a sane
    fault context during SEA injection and preventing the use of
    RASv1p1 fault injection hardware
 
  - Ensure that page table destruction when a VM is destroyed gives an
    opportunity to reschedule
 
  - Large fix to KVM's infrastructure for managing guest context loaded
    on the CPU, addressing issues where the output of AT emulation
    doesn't get reflected to the guest
 
  - Fix AT S12 emulation to actually perform stage-2 translation when
    necessary
 
  - Avoid attempting vLPI irqbypass when GICv4 has been explicitly
    disabled for a VM
 
  - Minor KVM + selftest fixes
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Merge tag 'kvmarm-fixes-6.17-1' of https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 changes for 6.17, take #2

 - Correctly handle 'invariant' system registers for protected VMs

 - Improved handling of VNCR data aborts, including external aborts

 - Fixes for handling of FEAT_RAS for NV guests, providing a sane
   fault context during SEA injection and preventing the use of
   RASv1p1 fault injection hardware

 - Ensure that page table destruction when a VM is destroyed gives an
   opportunity to reschedule

 - Large fix to KVM's infrastructure for managing guest context loaded
   on the CPU, addressing issues where the output of AT emulation
   doesn't get reflected to the guest

 - Fix AT S12 emulation to actually perform stage-2 translation when
   necessary

 - Avoid attempting vLPI irqbypass when GICv4 has been explicitly
   disabled for a VM

 - Minor KVM + selftest fixes
2025-08-29 12:57:31 -04:00
Paolo Bonzini
085e899aa1 KVM/riscv fixes for 6.17, take #1
- Fix pte settings within kvm_riscv_gstage_ioremap()
 - Fix comments in kvm_riscv_check_vcpu_requests()
 - Fix stack overrun when setting vlenb via ONE_REG
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Merge tag 'kvm-riscv-fixes-6.17-1' of https://github.com/kvm-riscv/linux into HEAD

KVM/riscv fixes for 6.17, take #1

- Fix pte settings within kvm_riscv_gstage_ioremap()
- Fix comments in kvm_riscv_check_vcpu_requests()
- Fix stack overrun when setting vlenb via ONE_REG
2025-08-29 12:57:18 -04:00
Linus Torvalds
606c2cf67b powerpc fixes for 6.17 #3
- Merge two CONFIG_POWERPC64_CPU entries in Kconfig.cputype
  - Replace extra-y to always-y in Makefile
  - Cleanup to use dev_fwnode helper
  - Fix misleading comment in kvmppc_prepare_to_enter()
  - misc cleanup and fixes
 
 Thanks to: Amit Machhiwal, Andrew Donnellan, Christophe Leroy, Gautam Menghani,
 Jiri Slaby (SUSE), Masahiro Yamada, Shrikanth Hegde, Stephen Rothwell, Venkat
 Rao Bagalkote, Xichao Zhao
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Merge tag 'powerpc-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Madhavan Srinivasan:

 - Merge two CONFIG_POWERPC64_CPU entries in Kconfig.cputype

 - Replace extra-y to always-y in Makefile

 - Cleanup to use dev_fwnode helper

 - Fix misleading comment in kvmppc_prepare_to_enter()

 - misc cleanup and fixes

Thanks to Amit Machhiwal, Andrew Donnellan, Christophe Leroy, Gautam
Menghani, Jiri Slaby (SUSE), Masahiro Yamada, Shrikanth Hegde, Stephen
Rothwell, Venkat Rao Bagalkote, and Xichao Zhao

* tag 'powerpc-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/boot/install.sh: Fix shellcheck warnings
  powerpc/prom_init: Fix shellcheck warnings
  powerpc/kvm: Fix ifdef to remove build warning
  powerpc: unify two CONFIG_POWERPC64_CPU entries in the same choice block
  powerpc: use always-y instead of extra-y in Makefiles
  powerpc/64: Drop unnecessary 'rc' variable
  powerpc: Use dev_fwnode()
  KVM: PPC: Fix misleading interrupts comment in kvmppc_prepare_to_enter()
2025-08-28 15:39:06 -07:00
Marc Zyngier
ee372e6451 KVM: arm64: nv: Fix ATS12 handling of single-stage translation
Volodymyr reports that using a Xen DomU as a nested guest (where
HCR_EL2.E2H == 0), ATS12 results in a translation that stops at
the L2's S1, which isn't something you'd normally expects.

Comparing the code against the spec proves to be illuminating,
and suggests that the author of such code must have been tired,
cross-eyed, drunk, or maybe all of the above.

The gist of it is that, apart from HCR_EL2.VM or HCR_EL2.DC being
0, only the use of the EL2&0 translation regime limits the walk
to S1 only, and that we must finish the S2 walk in any other case.
Which solves the above issue, as E2H==0 indicates that ATS12 walks
the EL1&0 translation regime.

Explicitly checking for EL2&0 fixes this.

Reported-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Suggested-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Fixes: be04cebf3e ("KVM: arm64: nv: Add emulation of AT S12E{0,1}{R,W}")
Link: https://lore.kernel.org/r/20250806141707.3479194-2-volodymyr_babchuk@epam.com
Link: https://lore.kernel.org/r/20250809144811.2314038-2-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-08-28 12:44:42 -07:00
Marc Zyngier
3328d17e70 KVM: arm64: Remove __vcpu_{read,write}_sys_reg_{from,to}_cpu()
There is no point having __vcpu_{read,write}_sys_reg_{from,to}_cpu()
exposed to the rest of the kernel, as the only callers are in
sys_regs.c.

Move them where they below, which is another opportunity to
simplify things a bit.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250817121926.217900-5-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-08-28 11:39:48 -07:00
Marc Zyngier
ec0ab059d4 KVM: arm64: Fix vcpu_{read,write}_sys_reg() accessors
Volodymyr reports (again!) that under some circumstances (E2H==0,
walking S1 PTs), PAR_EL1 doesn't report the value of the latest
walk in the CPU register, but that instead the value is written to
the backing store.

Further investigation indicates that the root cause of this is
that a group of registers (PAR_EL1, TPIDR*_EL{0,1}, the *32_EL2 dregs)
should always be considered as "on CPU", as they are not remapped
between EL1 and EL2.

We fail to treat them accordingly, and end-up considering that
the register (PAR_EL1 in this example) should be written to memory
instead of in the register.

While it would be possible to quickly work around it, it is obvious
that the way we track these things at the moment is pretty horrible,
and could do with some improvement.

Revamp the whole thing by:

- defining a location for a register (memory, cpu), potentially
  depending on the state of the vcpu

- define a transformation for this register (mapped register, potential
  translation, special register needing some particular attention)

- convey this information in a structure that can be easily passed
  around

As a result, the accessors themselves become much simpler, as the
state is explicit instead of being driven by hard-to-understand
conventions.

We get rid of the "pure EL2 register" notion, which wasn't very
useful, and add sanitisation of the values by applying the RESx
masks as required, something that was missing so far.

And of course, we add the missing registers to the list, with the
indication that they are always loaded.

Reported-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Fixes: fedc612314 ("KVM: arm64: nv: Handle virtual EL2 registers in vcpu_read/write_sys_reg()")
Link: https://lore.kernel.org/r/20250806141707.3479194-3-volodymyr_babchuk@epam.com
Link: https://lore.kernel.org/r/20250817121926.217900-4-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-08-28 11:39:48 -07:00
Marc Zyngier
e3f6836a63 KVM: arm64: Simplify sysreg access on exception delivery
Distinguishing between NV and VHE is slightly pointless, and only
serves as an extra complication, or a way to introduce bugs, such
as the way SPSR_EL1 gets written without checking for the state
being resident.

Get rid if this silly distinction, and fix the bug in one go.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250817121926.217900-3-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-08-28 11:39:48 -07:00
Marc Zyngier
b720269334 KVM: arm64: Check for SYSREGS_ON_CPU before accessing the 32bit state
Just like c6e35dff58 ("KVM: arm64: Check for SYSREGS_ON_CPU before
accessing the CPU state") fixed the 64bit state access, add a check
for the 32bit state actually being on the CPU before writing it.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250817121926.217900-2-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
2025-08-28 11:39:48 -07:00
Peter Robinson
497aa80ec7 arm64: dts: rockchip: Add vcc-supply to SPI flash on Pinephone Pro
As documented in the PinephonePro-Schematic-V1.0-20211127.pdf,
page 11, the SPI Flash's VCC pin is connected to VCC_1V8 power
source. This fixes the following warning:

  spi-nor spi1.0: supply vcc not found, using dummy regulator

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Ondřej Jirman <megi@xff.cz>
Link: https://lore.kernel.org/r/20250827143501.1646163-1-pbrobinson@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-28 14:15:00 +02:00
Harry Yoo
6659d02799 x86/mm/64: define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings()
Define ARCH_PAGE_TABLE_SYNC_MASK and arch_sync_kernel_mappings() to ensure
page tables are properly synchronized when calling p*d_populate_kernel().

For 5-level paging, synchronization is performed via
pgd_populate_kernel().  In 4-level paging, pgd_populate() is a no-op, so
synchronization is instead performed at the P4D level via
p4d_populate_kernel().

This fixes intermittent boot failures on systems using 4-level paging and
a large amount of persistent memory:

  BUG: unable to handle page fault for address: ffffe70000000034
  #PF: supervisor write access in kernel mode
  #PF: error_code(0x0002) - not-present page
  PGD 0 P4D 0
  Oops: 0002 [#1] SMP NOPTI
  RIP: 0010:__init_single_page+0x9/0x6d
  Call Trace:
   <TASK>
   __init_zone_device_page+0x17/0x5d
   memmap_init_zone_device+0x154/0x1bb
   pagemap_range+0x2e0/0x40f
   memremap_pages+0x10b/0x2f0
   devm_memremap_pages+0x1e/0x60
   dev_dax_probe+0xce/0x2ec [device_dax]
   dax_bus_probe+0x6d/0xc9
   [... snip ...]
   </TASK>

It also fixes a crash in vmemmap_set_pmd() caused by accessing vmemmap
before sync_global_pgds() [1]:

  BUG: unable to handle page fault for address: ffffeb3ff1200000
  #PF: supervisor write access in kernel mode
  #PF: error_code(0x0002) - not-present page
  PGD 0 P4D 0
  Oops: Oops: 0002 [#1] PREEMPT SMP NOPTI
  Tainted: [W]=WARN
  RIP: 0010:vmemmap_set_pmd+0xff/0x230
   <TASK>
   vmemmap_populate_hugepages+0x176/0x180
   vmemmap_populate+0x34/0x80
   __populate_section_memmap+0x41/0x90
   sparse_add_section+0x121/0x3e0
   __add_pages+0xba/0x150
   add_pages+0x1d/0x70
   memremap_pages+0x3dc/0x810
   devm_memremap_pages+0x1c/0x60
   xe_devm_add+0x8b/0x100 [xe]
   xe_tile_init_noalloc+0x6a/0x70 [xe]
   xe_device_probe+0x48c/0x740 [xe]
   [... snip ...]

Link: https://lkml.kernel.org/r/20250818020206.4517-4-harry.yoo@oracle.com
Fixes: 8d400913c2 ("x86/vmemmap: handle unpopulated sub-pmd ranges")
Signed-off-by: Harry Yoo <harry.yoo@oracle.com>
Closes: https://lore.kernel.org/linux-mm/20250311114420.240341-1-gwan-gyeong.mun@intel.com [1]
Suggested-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Kiryl Shutsemau <kas@kernel.org>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: bibo mao <maobibo@loongson.cn>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Christoph Lameter (Ampere) <cl@gentwo.org>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleinxer <tglx@linutronix.de>
Cc: Thomas Huth <thuth@redhat.com>
Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-08-27 22:45:44 -07:00
David Kaplan
8b3641dfb6 x86/bugs: Add attack vector controls for SSB
Attack vector controls for SSB were missed in the initial attack vector series.
The default mitigation for SSB requires user-space opt-in so it is only
relevant for user->user attacks.  Check with attack vector controls when
the command is auto - i.e., no explicit user selection has been done.

Fixes: 2d31d28746 ("x86/bugs: Define attack vectors relevant for each bug")
Signed-off-by: David Kaplan <david.kaplan@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250819192200.2003074-5-david.kaplan@amd.com
2025-08-27 18:17:12 +02:00
K Prateek Nayak
c2415c407a x86/cpu/topology: Use initial APIC ID from XTOPOLOGY leaf on AMD/HYGON
Prior to the topology parsing rewrite and the switchover to the new parsing
logic for AMD processors in

  c749ce393b ("x86/cpu: Use common topology code for AMD"),

the initial_apicid on these platforms was:

- First initialized to the LocalApicId from CPUID leaf 0x1 EBX[31:24].

- Then overwritten by the ExtendedLocalApicId in CPUID leaf 0xb
  EDX[31:0] on processors that supported topoext.

With the new parsing flow introduced in

  f7fb3b2dd9 ("x86/cpu: Provide an AMD/HYGON specific topology parser"),

parse_8000_001e() now unconditionally overwrites the initial_apicid already
parsed during cpu_parse_topology_ext().

Although this has not been a problem on baremetal platforms, on virtualized AMD
guests that feature more than 255 cores, QEMU zeros out the CPUID leaf
0x8000001e on CPUs with CoreID > 255 to prevent collision of these IDs in
EBX[7:0] which can only represent a maximum of 255 cores [1].

This results in the following FW_BUG being logged when booting a guest
with more than 255 cores:

    [Firmware Bug]: CPU 512: APIC ID mismatch. CPUID: 0x0000 APIC: 0x0200

AMD64 Architecture Programmer's Manual Volume 2: System Programming Pub.
24593 Rev. 3.42 [2] Section 16.12 "x2APIC_ID" mentions the Extended
Enumeration leaf 0xb (Fn0000_000B_EDX[31:0])(which was later superseded by the
extended leaf 0x80000026) provides the full x2APIC ID under all circumstances
unlike the one reported by CPUID leaf 0x8000001e EAX which depends on the mode
in which APIC is configured.

Rely on the APIC ID parsed during cpu_parse_topology_ext() from CPUID leaf
0x80000026 or 0xb and only use the APIC ID from leaf 0x8000001e if
cpu_parse_topology_ext() failed (has_topoext is false).

On platforms that support the 0xb leaf (Zen2 or later, AMD guests on
QEMU) or the extended leaf 0x80000026 (Zen4 or later), the
initial_apicid is now set to the value parsed from EDX[31:0].

On older AMD/Hygon platforms that do not support the 0xb leaf but support the
TOPOEXT extension (families 0x15, 0x16, 0x17[Zen1], and Hygon), retain current
behavior where the initial_apicid is set using the 0x8000001e leaf.

Issue debugged by Naveen N Rao (AMD) <naveen@kernel.org> and Sairaj Kodilkar
<sarunkod@amd.com>.

  [ bp: Massage commit message. ]

Fixes: c749ce393b ("x86/cpu: Use common topology code for AMD")
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Naveen N Rao (AMD) <naveen@kernel.org>
Cc: stable@vger.kernel.org
Link: 35ac5dfbca [1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=206537 [2]
Link: https://lore.kernel.org/20250825075732.10694-2-kprateek.nayak@amd.com
2025-08-27 11:31:11 +02:00
Borislav Petkov (AMD)
fcf8239ad6 x86/microcode/AMD: Handle the case of no BIOS microcode
Machines can be shipped without any microcode in the BIOS. Which means,
the microcode patch revision is 0.

Handle that gracefully.

Fixes: 94838d230a ("x86/microcode/AMD: Use the family,model,stepping encoded in the patch ID")
Reported-by: Vítek Vávra <vit.vavra.kh@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@kernel.org>
2025-08-27 10:24:10 +02:00
Paolo Bonzini
22b2ca023f KVM x86 fixes and a selftest fix for 6.17-rcN
- Use array_index_nospec() to sanitize the target vCPU ID when handling PV
    IPIs and yields as the ID is guest-controlled.
 
  - Drop a superfluous cpumask_empty() check when reclaiming SEV memory, as
    the common case, by far, is that at least one CPU will have entered the
    VM, and wbnoinvd_on_cpus_mask() will naturally handle the rare case where
    the set of have_run_cpus is empty.
 
  - Rename the is_signed_type() macro in kselftest_harness.h to is_signed_var()
    to fix a collision with linux/overflow.h.  The collision generates compiler
    warnings due to the two macros having different implementations.
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Merge tag 'kvm-x86-fixes-6.17-rc7' of https://github.com/kvm-x86/linux into HEAD

KVM x86 fixes and a selftest fix for 6.17-rcN

 - Use array_index_nospec() to sanitize the target vCPU ID when handling PV
   IPIs and yields as the ID is guest-controlled.

 - Drop a superfluous cpumask_empty() check when reclaiming SEV memory, as
   the common case, by far, is that at least one CPU will have entered the
   VM, and wbnoinvd_on_cpus_mask() will naturally handle the rare case where
   the set of have_run_cpus is empty.

 - Rename the is_signed_type() macro in kselftest_harness.h to is_signed_var()
   to fix a collision with linux/overflow.h.  The collision generates compiler
   warnings due to the two macros having different implementations.
2025-08-27 04:18:01 -04:00
Heiner Kallweit
39e94fdce4 net: phy: fixed: let fixed_phy_add always use addr 0 and remove return value
We have only two users of fixed_phy_add(), both use address 0 and
ignore the return value. So simplify fixed_phy_add() accordingly.

Whilst at it, constify the fixed_phy_status configs.

Note:
fixed_phy_add() is a legacy function which shouldn't be used in new
code, as it's use may be problematic:
- No check whether a fixed phy exists already at the given address
- If fixed_phy_register() is called afterwards by any other driver,
  then it will also use phy_addr 0, because fixed_phy_add() ignores
  the ida which manages address assignment
Drivers using a fixed phy created by fixed_phy_add() in platform code,
should dynamically create a fixed phy with fixed_phy_register()
instead.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://patch.msgid.link/762700e5-a0b1-41af-aa03-929822a39475@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-26 17:19:02 -07:00
Suchit Karunakaran
24963ae1b0 x86/cpu/intel: Fix the constant_tsc model check for Pentium 4
Pentium 4's which are INTEL_P4_PRESCOTT (model 0x03) and later have
a constant TSC. This was correctly captured until commit fadb6f569b
("x86/cpu/intel: Limit the non-architectural constant_tsc model checks").

In that commit, an error was introduced while selecting the last P4
model (0x06) as the upper bound. Model 0x06 was transposed to
INTEL_P4_WILLAMETTE, which is just plain wrong. That was presumably a
simple typo, probably just copying and pasting the wrong P4 model.

Fix the constant TSC logic to cover all later P4 models. End at
INTEL_P4_CEDARMILL which accurately corresponds to the last P4 model.

Fixes: fadb6f569b ("x86/cpu/intel: Limit the non-architectural constant_tsc model checks")
Signed-off-by: Suchit Karunakaran <suchitkarunakaran@gmail.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Sohil Mehta <sohil.mehta@intel.com>
Cc:stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250816065126.5000-1-suchitkarunakaran%40gmail.com
2025-08-25 08:23:37 -07:00
Arnd Bergmann
f05995cc6d ARM: stacktrace: include asm/sections.h in asm/stacktrace.h
The recent kstack erase changes appear to have uncovered an existing
issue with a missing header inclusion:

In file included from drivers/misc/lkdtm/kstack_erase.c:12:
In file included from include/linux/kstack_erase.h:16:
arch/arm/include/asm/stacktrace.h:48:21: error: call to undeclared function 'in_entry_text'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
   48 |                 frame->ex_frame = in_entry_text(frame->pc);
      |                                   ^

Include asm/sections.h here so the compiler can see the in_entry_text()
declaration.

Fixes: 752ec621ef ("ARM: 9234/1: stacktrace: Avoid duplicate saving of exception PC value")
Cc: Kees Cook <kees@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250807071902.4077714-1-arnd@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
2025-08-25 06:12:06 -07:00
Radim Krčmář
799766208f RISC-V: KVM: fix stack overrun when loading vlenb
The userspace load can put up to 2048 bits into an xlen bit stack
buffer.  We want only xlen bits, so check the size beforehand.

Fixes: 2fa290372d ("RISC-V: KVM: add 'vlenb' Vector CSR")
Cc: stable@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@ventanamicro.com>
Reviewed-by: Nutty Liu <liujingqi@lanxincomputing.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Link: https://lore.kernel.org/r/20250805104418.196023-4-rkrcmar@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
2025-08-25 10:26:20 +05:30
Quan Zhou
e61a12a4ba RISC-V: KVM: Correct kvm_riscv_check_vcpu_requests() comment
Correct `check_vcpu_requests` to `kvm_riscv_check_vcpu_requests` in
comments.

Fixes: f55ffaf896 ("RISC-V: KVM: Enable ring-based dirty memory tracking")
Signed-off-by: Quan Zhou <zhouquan@iscas.ac.cn>
Reviewed-by: Nutty Liu <nutty.liu@hotmail.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/49680363098c45516ec4b305283d662d26fa9386.1754326285.git.zhouquan@iscas.ac.cn
Signed-off-by: Anup Patel <anup@brainfault.org>
2025-08-25 10:26:17 +05:30
Fangyu Yu
9bca8be646 RISC-V: KVM: Fix pte settings within kvm_riscv_gstage_ioremap()
Currently, kvm_riscv_gstage_ioremap() is used to map IMSIC gpa to the
spa of IMSIC guest interrupt file.

The PAGE_KERNEL_IO property includes global setting whereas it does not
include user mode settings, so when accessing the IMSIC address in the
virtual machine, a guest page fault will occur, this is not expected.

According to the RISC-V Privileged Architecture Spec, for G-stage address
translation, all memory accesses are considered to be user-level accesses
as though executed in U-mode.

Fixes: 659ad6d82c ("RISC-V: KVM: Use PAGE_KERNEL_IO in kvm_riscv_gstage_ioremap()")
Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com>
Reviewed-by: Radim Krčmář <rkrcmar@ventanamicro.com>
Reviewed-by: Nutty Liu <nutty.liu@hotmail.com>
Link: https://lore.kernel.org/r/20250807070729.89701-1-fangyu.yu@linux.alibaba.com
Signed-off-by: Anup Patel <anup@brainfault.org>
2025-08-25 10:26:16 +05:30
Linus Torvalds
0f74d9cf52 - Fix the GDS mitigation detection on some machines after the recent attack
vectors conversion
 
 - Filter out the invalid machine reset reason value -1 when running as a guest
   as in such cases the reason why the machine was rebooted does not make
   a whole lot of sense
 
 - Init the resource control machinery on Hygon hw, also in order to avoid
   a division by 0 in addition to actually enabling the feature on hw which
   supports it
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Merge tag 'x86_urgent_for_v6.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Fix the GDS mitigation detection on some machines after the recent
   attack vectors conversion

 - Filter out the invalid machine reset reason value -1 when running as
   a guest as in such cases the reason why the machine was rebooted does
   not make a whole lot of sense

 - Init the resource control machinery on Hygon hw in order to avoid a
   division by zero and to actually enable the feature on hw which
   supports it

* tag 'x86_urgent_for_v6.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/bugs: Fix GDS mitigation selecting when mitigation is off
  x86/CPU/AMD: Ignore invalid reset reason value
  x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper
2025-08-24 09:52:28 -04:00
Linus Torvalds
a69dfb4e0a Fix ethernet on Lantiq boards
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Merge tag 'mips-fixes_6.17_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:
 "Fix ethernet on Lantiq boards"

* tag 'mips-fixes_6.17_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: lantiq: xway: sysctrl: rename the etop node
  mips: dts: lantiq: danube: add missing burst length property
2025-08-24 09:47:03 -04:00
Kaison Deng
4138adfd35 arm64: dts: rockchip: fix es8388 address on rk3588s-roc-pc
Use the correct es8388 address for rk3588s-roc-ps

Signed-off-by: Kaison Deng <dkx@t-chip.com.cn>
Link: https://lore.kernel.org/r/20250814043230.2774813-1-dkx@t-chip.com.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-24 12:38:47 +02:00
Krzysztof Kozlowski
c9f986a54d arm64: dts: rockchip: Fix Bluetooth interrupts flag on Neardi LBA3368
GPIO_ACTIVE_x flags are not correct in the context of interrupt flags.
These are simple defines so they could be used in DTS but they will not
have the same meaning: GPIO_ACTIVE_HIGH = 0 = IRQ_TYPE_NONE.

Correct the interrupt flags, assuming the author of the code wanted same
logical behavior behind the name "ACTIVE_xxx", this is:
  ACTIVE_HIGH  => IRQ_TYPE_LEVEL_HIGH

Fixes: 7b4a8097e5 ("arm64: dts: rockchip: Add Neardi LBA3368 board")
Cc: stable+noautosel@kernel.org # Needs testing, because actual level is just a guess
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-By: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20250818090445.28112-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-24 12:36:20 +02:00
Sebastian Reichel
09cce87842 arm64: dts: rockchip: correct network description on Sige5
Both network PHYs have dedicated crystals for the 25 MHz clock
and do not source it from the RK3576.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20250818-sige5-network-phy-clock-v1-1-87a9122d41c2@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-24 12:17:45 +02:00
Krzysztof Kozlowski
521b36e5a2 arm64: dts: rockchip: Minor whitespace cleanup
The DTS code coding style expects exactly one space around '=' or '{'
characters.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250819131607.86338-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-24 08:43:28 +02:00
Krzysztof Kozlowski
106bdca970 ARM: dts: rockchip: Minor whitespace cleanup
The DTS code coding style expects exactly one space around '='
character.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250819131607.86338-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-24 08:43:28 +02:00
Chen-Yu Tsai
2dea24df23 arm64: dts: rockchip: Add supplies for eMMC on rk3588-orangepi-5
The eMMC description is missing both vmmc and vqmmc supplies.

Add them to complete the description.

Fixes: 236d225e1e ("arm64: dts: rockchip: Add board device tree for rk3588-orangepi-5-plus")
Fixes: ea63f4666e ("arm64: dts: rockchip: refactor common rk3588-orangepi-5.dtsi")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Link: https://lore.kernel.org/r/20250821052939.1869171-1-wens@kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-24 08:35:09 +02:00
Maud Spierings
8976583832 arm64: dts: rockchip: Fix the headphone detection on the orangepi 5 plus
The logic of the headphone detect pin seems to be inverted, with this
change headphones actually output sound when plugged in.

Verified by checking /sys/kernel/debug/gpio and by listening.

Fixes: 236d225e1e ("arm64: dts: rockchip: Add board device tree for rk3588-orangepi-5-plus")
Signed-off-by: Maud Spierings <maud_spierings@hotmail.com>
Reviewed-by: Ondřej Jirman <megi@xff.cz>
Link: https://lore.kernel.org/r/20250823-orangepi5-v1-1-ae77dd0e06d7@hotmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2025-08-24 08:14:10 +02:00
Aleksander Jan Bajkowski
8c431ea8f3 mips: lantiq: xway: sysctrl: rename the etop node
Bindig requires a node name matching ‘^ethernet@[0-9a-f]+$’. This patch
changes the clock name from “etop” to “ethernet”.

This fixes the following warning:
arch/mips/boot/dts/lantiq/danube_easy50712.dtb: etop@e180000 (lantiq,etop-xway): $nodename:0: 'etop@e180000' does not match '^ethernet@[0-9a-f]+$'
	from schema $id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml#

Fixes: dac0bad937 ("dt-bindings: net: lantiq,etop-xway: Document Lantiq Xway ETOP bindings")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Acked-by: Jakub Kicinski <kuba@kernel.org>
2025-08-22 22:03:21 +02:00
Aleksander Jan Bajkowski
7b28232921 mips: dts: lantiq: danube: add missing burst length property
The upstream dts lacks the lantiq,{rx/tx}-burst-length property. Other
issues were also fixed:
arch/mips/boot/dts/lantiq/danube_easy50712.dtb: etop@e180000 (lantiq,etop-xway): 'interrupt-names' is a required property
	from schema $id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml#
arch/mips/boot/dts/lantiq/danube_easy50712.dtb: etop@e180000 (lantiq,etop-xway): 'lantiq,tx-burst-length' is a required property
	from schema $id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml#
arch/mips/boot/dts/lantiq/danube_easy50712.dtb: etop@e180000 (lantiq,etop-xway): 'lantiq,rx-burst-length' is a required property
	from schema $id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml#

Fixes: 14d4e308e0 ("net: lantiq: configure the burst length in ethernet drivers")
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Acked-by: Jakub Kicinski <kuba@kernel.org>
2025-08-22 22:03:21 +02:00