svn commit: r292744 - head/sys/compat/linux

[Dmitry Chagin]

Author: dchagin
Date: Sat Dec 26 09:09:49 2015
New Revision: 292744
URL: https://svnweb.freebsd.org/changeset/base/292744

Log:
  Return EINVAL in case of incorrect sigev_signo value specified instead of panicing.

Modified:
  head/sys/compat/linux/linux_timer.c

Modified: head/sys/compat/linux/linux_timer.c
==============================================================================
--- head/sys/compat/linux/linux_timer.c	Sat Dec 26 09:04:47 2015	(r292743)
+++ head/sys/compat/linux/linux_timer.c	Sat Dec 26 09:09:49 2015	(r292744)
@@ -57,6 +57,8 @@ linux_convert_l_sigevent(struct l_sigeve
 	CP(*l_sig, *sig, sigev_notify);
 	switch (l_sig->sigev_notify) {
 	case L_SIGEV_SIGNAL:
+		if (!LINUX_SIG_VALID(l_sig->sigev_signo))
+			return (EINVAL);
 		sig->sigev_notify = SIGEV_SIGNAL;
 		sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo);
 		PTRIN_CP(*l_sig, *sig, sigev_value.sival_ptr);
@@ -73,6 +75,8 @@ linux_convert_l_sigevent(struct l_sigeve
 		return (EINVAL);
 #endif
 	case L_SIGEV_THREAD_ID:
+		if (!LINUX_SIG_VALID(l_sig->sigev_signo))
+			return (EINVAL);
 		sig->sigev_notify = SIGEV_THREAD_ID;
 		CP2(*l_sig, *sig, _l_sigev_un._tid, sigev_notify_thread_id);
 		sig->sigev_signo = linux_to_bsd_signal(l_sig->sigev_signo);