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arm64 ptrace(PTRACE_SETREGSET) fix to zero the target's fpsimd_state

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rather than the tracer's.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:

 - ptrace(PTRACE_SETREGSET) fix to zero the target's fpsimd_state rather
   than the tracer's

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/fpsimd: ptrace: zero target's fpsimd_state, not the tracer's
This commit is contained in:
Linus Torvalds 2026-05-08 16:18:35 -07:00
commit 27a26ccfd5
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/kernel/ptrace.c
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@ -983,8 +983,8 @@ static int sve_set_common(struct task_struct *target,
}
/* Always zero V regs, FPSR, and FPCR */
memset(&current->thread.uw.fpsimd_state, 0,
sizeof(current->thread.uw.fpsimd_state));
memset(&target->thread.uw.fpsimd_state, 0,
sizeof(target->thread.uw.fpsimd_state));
/* Registers: FPSIMD-only case */