Author: eugen
Date: Thu Jan 17 14:09:55 2019
New Revision: 343112
URL: https://svnweb.freebsd.org/changeset/base/343112
Log:
jail(8): stop crashing with SIGSEGV inside run_command() function
while processing not entirely correct jail.conf(5) file
having something like "ip4.addr = 127.0.0.1;" and no "ip4 = ...;"
so extrap variable stays NULL.
Reported by: marck
MFC after: 1 month
Modified:
head/usr.sbin/jail/command.c
Modified: head/usr.sbin/jail/command.c
==============================================================================
--- head/usr.sbin/jail/command.c Thu Jan 17 06:35:45 2019
(r343111)
+++ head/usr.sbin/jail/command.c Thu Jan 17 14:09:55 2019
(r343112)
@@ -374,7 +374,7 @@ run_command(struct cfjail *j)
argc = 4;
}
- if (!down) {
+ if (!down && extrap != NULL) {
for (cs = strtok(extrap, " "); cs;
cs = strtok(NULL, " ")) {
size_t len = strlen(cs) + 1;
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