kernel/git/stable/linux-stable.git/arch/x86/include, branch masterUnnamed repository; edit this file 'description' to name the repository.http://git-test.landau.one/pub/scm/linux/kernel/git/stable/linux-stable.git/atom/arch/x86/include?h=master2026-09-28T19:11:19Z{x86,um}/uapi/ptrace: Guard register offset macros with __ASSEMBLER__ or __FRAME_OFFSETS2026-09-28T19:11:19ZNick Desaulniersndesaulniers@google.com2026-08-21T22:45:42Zurn:sha1:a661c34fe693c8f9ef29b45ee71cfa1fe593502b
The register offset macros in <asm/ptrace-abi.h> are guarded by
`defined(__ASSEMBLER__) || defined(__FRAME_OFFSETS)` for 64-bit, but
were left unguarded for 32-bit. This causes havoc for userspace that
happens to use identifiers colliding with these short macro names
(e.g., EBX, ECX, EAX, DS, ES, FS, GS, CS, SS). Without this guard,
userspace is forced to be super extra careful with include ordering to
minimize the chance of collision.
Wrap both the 32-bit and 64-bit register definitions under
`#if defined(__ASSEMBLER__) || defined(__FRAME_OFFSETS)`, and ensure
User-Mode Linux (UML) defines `__FRAME_OFFSETS` for 32-bit as well.
Closes: https://github.com/llvm/llvm-project/issues/217413
Assisted-by: LLM
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Tested-by: Elliott Hughes <enh@google.com>
Link: https://patch.msgid.link/20260821-ptrace_uapi-v1-1-3de8638a29f2@google.com
Merge tag 'ipe-pr-20260925' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe2026-09-25T22:55:03ZLinus Torvaldstorvalds@linux-foundation.org2026-09-25T22:55:03Zurn:sha1:75467f60a3d14f08f86f2b353298d2826382ff23
Pull IPE fixes from Fan Wu:
"Two fixes for use-after-free issues found by recent LLM-assisted code
analysis.
- move successful policy load auditing under the new policy
directory's inode lock, preventing a concurrent policy deletion
from freeing the policy while it is still being audited
- protect the dm-verity root hash with RCU, preventing policy
evaluation from racing with root hash replacement during preresume"
* tag 'ipe-pr-20260925' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe:
ipe: protect the dm-verity root hash with RCU
ipe: fix use-after-free when auditing a newly loaded policy