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| author | kib <kib@FreeBSD.org> | 2014-08-29 08:33:32 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2014-08-29 08:33:32 +0000 |
| commit | 3d7b436d95767c10fbb99055ec2d6c9b80fe4823 (patch) | |
| tree | 5249dff5261e3009dac56ece5422cf9c5e52a7d9 /sys/kern | |
| parent | 0d7257f5333f6ea69c58296a80c5b5c976dc68a9 (diff) | |
| download | FreeBSD-src-3d7b436d95767c10fbb99055ec2d6c9b80fe4823.zip FreeBSD-src-3d7b436d95767c10fbb99055ec2d6c9b80fe4823.tar.gz | |
MFC r270320:
Check the validity of struct sigaction sa_flags value, reject unknown
flags.
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/kern_sig.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c index 1d21f06..11e0fdb 100644 --- a/sys/kern/kern_sig.c +++ b/sys/kern/kern_sig.c @@ -644,6 +644,10 @@ kern_sigaction(td, sig, act, oact, flags) if (!_SIG_VALID(sig)) return (EINVAL); + if (act != NULL && (act->sa_flags & ~(SA_ONSTACK | SA_RESTART | + SA_RESETHAND | SA_NOCLDSTOP | SA_NODEFER | SA_NOCLDWAIT | + SA_SIGINFO)) != 0) + return (EINVAL); PROC_LOCK(p); ps = p->p_sigacts; |
