Re: [PATCH] powerpc/entry: Clear TIF_SYSCALL_RET before syscall error return
From: Madhavan Srinivasan
Date: Wed Sep 09 2026 - 02:23:18 EST
On Fri, 28 Aug 2026 11:08:11 +0530, Shrikanth Hegde wrote:
> Shivaprasad reported a boot failure due to userspace processes crash on
> abort() from libc.so.6. It was bisected to merge request
> commit '3424d8c18a7d ("Merge tag 'core-entry-2026-08-17' of
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip")'
>
> Upon checking the merge, when syscall_enter_from_user_mode_randomize_stack
> fails, which could happen when a tracer like seccomp or ptrace intercepts
> and skips the syscall, the code returns to userspace immediately without
> clearing the intermediate flag which was set.
>
> [...]
Applied to powerpc/fixes.
[1/1] powerpc/entry: Clear TIF_SYSCALL_RET before syscall error return
https://git.kernel.org/powerpc/c/2c1dde8a69a3a7d64425a6de0add6e289a5a402f
cheers