* [GIT PULL] RISC-V updates for v7.3-rc7
@ 2026-10-11 6:05 Paul Walmsley
2026-10-11 18:18 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Paul Walmsley @ 2026-10-11 6:05 UTC (permalink / raw)
To: torvalds, linux-riscv
Linus,
Please pull these RISC-V updates for v7.3-rc7. There are several security
fixes, a significant strnlen() regression fix, and several other
miscellaneous fixes. My intention was to send these earlier, but LPC got
in the way.
thanks,
- Paul
The following changes since commit a90ee4305c4a5df72c11b31dacfdc76e00fcf78a:
Linux 7.3-rc6 (2026-10-04 13:45:25 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux tags/riscv-for-linus-7.3-rc7
for you to fetch changes up to d4f25b097e46d82718bb737d4540c99b7ab0a408:
riscv: fix load_unaligned_zeropad() fixup for RV32 (2026-10-07 20:25:09 -0600)
----------------------------------------------------------------
RISC-V updates for v7.3-rc7
- Fix a regression in the Zbb-enabled strnlen() implementation when
huge counts are specified
- When userspace pointer masking is enabled, strip the tag from
user-specified pointers in two spots in the RISC-V futex code where
this was missing
- When CONFIG_SHADOW_CALL_STACK=y, use a supervisor mode-only CSR bit
to determine whether the trap came from userspace or not, rather
than a userspace-writable register
- Reset the HSTATUS.HU bit during CPU initialization to avoid
unexpected behavior, as the RISC-V specification does not require
this bit to be hardware-reset
- Fix the T-Head GhostWrite probing code when !CONFIG_ERRATA_THEAD_MAE
- Fix RV32 boots using 32-bit.config by constraining NR_CPUS
- Implement a workaround for SiFive MAL-9092, which requires fences
around hypervisor load/store instructions
- Fix the RISC-V patch_map() code to work properly for EXECMEM
addresses when !CONFIG_STRICT_MODULE_RWX
- Fix ptrace register set access reporting when CFI landing pad or
shadow stack support is enabled
- Avoid copying garbage into the target's vstate when PTRACE_SETREGSET
is called with a short iov_len
- Fix load_unaligned_zeropad() on RV32 kernels with
CONFIG_RISCV_EFFICIENT_UNALIGNED_ACCESS=y
- Fix build breakage for any userspace program that includes
uapi/asm/vendor/mips.h
- Fix a build warning for 32-bit allmodconfig builds related to SiFive
errata
- Fix misspecified inline assembly constraints in the vector context
save/restore code
----------------------------------------------------------------
Arnd Bergmann (1):
riscv: limit sifive errata to CONFIG_64BIT
Aurelien Jarno (1):
riscv: vector: Fix output operands in context save
Chen Pei (1):
riscv: ptrace: reject CFI regset access when extensions are absent
Karl Mehltretter (1):
riscv: fix load_unaligned_zeropad() fixup for RV32
Leo Yu-Chi Liang (1):
riscv: fix NR_CPUS range leaking 64-bit default onto 32-bit builds
Shao Mingyin (1):
riscv: lib: Fix ZBB strnlen wrap-around regression on huge counts
Troy Mitchell (1):
riscv: vector: Fix data pointer constraints in context save/restore
Wei-Jie Hung (1):
riscv: patch: fix handling of bpf-jit execmem addresses
Yong-Xuan Wang (2):
RISC-V: errata: Add SiFive MAL-9092 workaround
RISC-V: Clear HSTATUS.HU on CPU initialization
Ziyi Guo (2):
riscv: futex: untag the user pointer before the atomic access
riscv: entry: gate shadow call stack reload on sstatus.SPP, not tp
Zongmin Zhou (3):
riscv: hwprobe: use _BITULL() rather than BIT() in MIPS vendor uapi header
riscv: errata: select RISCV_ALTERNATIVE_EARLY for THEAD GHOSTWRITE
riscv: ptrace: Zero-initialize regset buffers before copyin
arch/riscv/Kconfig | 5 +++--
arch/riscv/Kconfig.errata | 17 ++++++++++++++++-
arch/riscv/Kconfig.socs | 1 +
arch/riscv/errata/sifive/errata.c | 20 ++++++++++++++++++++
arch/riscv/include/asm/cpufeature.h | 2 ++
arch/riscv/include/asm/errata_list_vendors.h | 3 ++-
arch/riscv/include/asm/futex.h | 2 ++
arch/riscv/include/asm/insn-def.h | 16 +++++++++++++---
arch/riscv/include/asm/scs.h | 17 +++++++++++++----
arch/riscv/include/asm/vector.h | 8 ++++----
arch/riscv/include/uapi/asm/vendor/mips.h | 4 +++-
arch/riscv/kernel/cpufeature.c | 12 ++++++++++++
arch/riscv/kernel/entry.S | 2 +-
arch/riscv/kernel/patch.c | 2 +-
arch/riscv/kernel/ptrace.c | 8 ++++++++
arch/riscv/kernel/setup.c | 2 ++
arch/riscv/kernel/smpboot.c | 2 ++
arch/riscv/kernel/suspend.c | 2 ++
arch/riscv/lib/strnlen.S | 20 ++++++++++++++++++--
arch/riscv/mm/extable.c | 4 ++--
20 files changed, 127 insertions(+), 22 deletions(-)
vmlinux size differences in bytes (from a90ee4305c4a):
text data bss dec hex filename
+424 +128 . +552 +228 vmlinux.defconfig.gcc-16
+408 +128 . +536 +218 vmlinux.nosmp_defconfig.gcc-16
-9710 -15080 -32720 -57510 -e0a6 vmlinux.rv32_defconfig.gcc-16
-4342 -4728 . -9070 -236e vmlinux.rv32_nosmp_defconfig.gcc-16
+315 . . +315 +13b vmlinux.nommu_virt_defconfig.gcc-16
+216 +128 . +344 +158 vmlinux.defconfig.clang-20
+180 +128 . +308 +134 vmlinux.nosmp_defconfig.clang-20
-9366 -14936 -32848 -57150 -df3e vmlinux.rv32_defconfig.clang-20
-4418 -5000 . -9418 -24ca vmlinux.rv32_nosmp_defconfig.clang-20
+367 +64 . +431 +1af vmlinux.nommu_virt_defconfig.clang-20
+404 +128 . +532 +214 vmlinux.defconfig.gcc-15
+400 +128 . +528 +210 vmlinux.nosmp_defconfig.gcc-15
-9626 -15080 -32720 -57426 -e052 vmlinux.rv32_defconfig.gcc-15
-4846 -4696 . -9542 -2546 vmlinux.rv32_nosmp_defconfig.gcc-15
+291 . . +291 +123 vmlinux.nommu_virt_defconfig.gcc-15
+324 +128 . +452 +1c4 vmlinux.defconfig.gcc-14
+332 +128 . +460 +1cc vmlinux.nosmp_defconfig.gcc-14
-9654 -15144 -32720 -57518 -e0ae vmlinux.rv32_defconfig.gcc-14
-4370 -4696 . -9066 -236a vmlinux.rv32_nosmp_defconfig.gcc-14
+335 +64 . +399 +18f vmlinux.nommu_virt_defconfig.gcc-14
+212 +128 . +340 +154 vmlinux.defconfig.clang-19
+176 +128 . +304 +130 vmlinux.nosmp_defconfig.clang-19
-9182 -14936 -32784 -56902 -de46 vmlinux.rv32_defconfig.clang-19
-4410 -4488 . -8898 -22c2 vmlinux.rv32_nosmp_defconfig.clang-19
+367 +64 . +431 +1af vmlinux.nommu_virt_defconfig.clang-19
+292 +128 . +420 +1a4 vmlinux.defconfig.gcc-13
+304 +4256 . +4560 +11d0 vmlinux.nosmp_defconfig.gcc-13
-9590 -15080 -32720 -57390 -e02e vmlinux.rv32_defconfig.gcc-13
-4314 -4728 . -9042 -2352 vmlinux.rv32_nosmp_defconfig.gcc-13
+239 +64 . +303 +12f vmlinux.nommu_virt_defconfig.gcc-13
+216 +128 . +344 +158 vmlinux.defconfig.clang-18
+204 +128 . +332 +14c vmlinux.nosmp_defconfig.clang-18
-9074 -14936 -32784 -56794 -ddda vmlinux.rv32_defconfig.clang-18
-4402 -4488 . -8890 -22ba vmlinux.rv32_nosmp_defconfig.clang-18
+343 . . +343 +157 vmlinux.nommu_virt_defconfig.clang-18
+288 +128 . +416 +1a0 vmlinux.defconfig.gcc-12
+280 +128 . +408 +198 vmlinux.nosmp_defconfig.gcc-12
-9646 -15080 -32720 -57446 -e066 vmlinux.rv32_defconfig.gcc-12
-4314 -4696 . -9010 -2332 vmlinux.rv32_nosmp_defconfig.gcc-12
+239 . . +239 +ef vmlinux.nommu_virt_defconfig.gcc-12
+192 +128 . +320 +140 vmlinux.defconfig.clang-17
+188 +128 . +316 +13c vmlinux.nosmp_defconfig.clang-17
-8822 -14936 -32784 -56542 -dcde vmlinux.rv32_defconfig.clang-17
-4442 -4488 . -8930 -22e2 vmlinux.rv32_nosmp_defconfig.clang-17
+343 . . +343 +157 vmlinux.nommu_virt_defconfig.clang-17
+336 +128 . +464 +1d0 vmlinux.defconfig.gcc-11
+352 +160 . +512 +200 vmlinux.nosmp_defconfig.gcc-11
-8186 -15112 -32720 -56018 -dad2 vmlinux.rv32_defconfig.gcc-11
-4130 -4696 . -8826 -227a vmlinux.rv32_nosmp_defconfig.gcc-11
+239 . . +239 +ef vmlinux.nommu_virt_defconfig.gcc-11
+40 +32 . +72 +48 vmlinux.allnoconfig.gcc-15
+14383 +400 +320 +15103 +3aff vmlinux.allmodconfig.gcc-15
+42 +32 . +74 +4a vmlinux.allnoconfig.clang-19
+643 +128 . +771 +303 vmlinux.allmodconfig.clang-19
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [GIT PULL] RISC-V updates for v7.3-rc7
2026-10-11 6:05 [GIT PULL] RISC-V updates for v7.3-rc7 Paul Walmsley
@ 2026-10-11 18:18 ` pr-tracker-bot
0 siblings, 0 replies; 2+ messages in thread
From: pr-tracker-bot @ 2026-10-11 18:18 UTC (permalink / raw)
To: Paul Walmsley; +Cc: torvalds, linux-riscv
The pull request you sent on Sun, 11 Oct 2026 00:05:14 -0600 (MDT):
> git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux tags/riscv-for-linus-7.3-rc7
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/b2d929a1c2a887dd046e0af2d4a06dbf4e7d87a6
Thank you!
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