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Diffstat (limited to 'arch/i386/kernel/signal.c')
| -rw-r--r-- | arch/i386/kernel/signal.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/i386/kernel/signal.c b/arch/i386/kernel/signal.c index 7bcda6d69d8..61eb0c8a6e4 100644 --- a/arch/i386/kernel/signal.c +++ b/arch/i386/kernel/signal.c @@ -604,7 +604,9 @@ int fastcall do_signal(struct pt_regs *regs, sigset_t *oldset) * We want the common case to go fast, which * is why we may in certain cases get here from * kernel mode. Just return without doing anything - * if so. + * if so. vm86 regs switched out by assembly code + * before reaching here, so testing against kernel + * CS suffices. */ if (!user_mode(regs)) return 1; |