Author: kib
Date: Fri Aug 29 08:33:32 2014
New Revision: 270787
URL: http://svnweb.freebsd.org/changeset/base/270787
Log:
MFC r270320:
Check the validity of struct sigaction sa_flags value, reject unknown
flags.
Modified:
stable/10/sys/kern/kern_sig.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/kern/kern_sig.c
==============================================================================
--- stable/10/sys/kern/kern_sig.c Fri Aug 29 08:20:03 2014
(r270786)
+++ stable/10/sys/kern/kern_sig.c Fri Aug 29 08:33:32 2014
(r270787)
@@ -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;
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