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(parent: b949984) | patch
x86/regs: Syscall_get_nr() returns -1 for a non-system call
authorH. Peter Anvin <hpa@zytor.com>
Mon, 10 May 2021 18:53:15 +0000 (11:53 -0700)
committerIngo Molnar <mingo@kernel.org>
Wed, 12 May 2021 08:49:15 +0000 (10:49 +0200)
commit0d0c5254f03a94317e3ef6a1dae77f1321dc9176
treeae07eba26f7bdc1a6cf308b192200cae77b57baetree | snapshot
parentb949984c9821b29fa14cf08fd5d8cc5e9745067bcommit | diff
x86/regs: Syscall_get_nr() returns -1 for a non-system call

syscall_get_nr() is defined to return -1 for a non-system call or a
ptrace/seccomp restart; not just any arbitrary number. See comment in
<asm-generic/syscall.h> for the official definition of this function.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210510185316.3307264-7-hpa@zytor.com
arch/x86/kernel/ptrace.c diff | blob | history
arch/x86/kernel/signal.c diff | blob | history
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