Author: jilles
Date: Sat Jan 14 21:54:12 2012
New Revision: 230117
URL: http://svn.freebsd.org/changeset/base/230117
Log:
sh: Fix out of bounds array access when trap is used with an invalid signal.
MFC after: 1 week
Modified:
head/bin/sh/trap.c
Modified: head/bin/sh/trap.c
==============================================================================
--- head/bin/sh/trap.c Sat Jan 14 21:51:44 2012 (r230116)
+++ head/bin/sh/trap.c Sat Jan 14 21:54:12 2012 (r230117)
@@ -191,10 +191,11 @@ trapcmd(int argc, char **argv)
argv++;
}
}
- while (*argv) {
+ for (; *argv; argv++) {
if ((signo = sigstring_to_signum(*argv)) == -1) {
warning("bad signal %s", *argv);
errors = 1;
+ continue;
}
INTOFF;
if (action)
@@ -205,7 +206,6 @@ trapcmd(int argc, char **argv)
if (signo != 0)
setsignal(signo);
INTON;
- argv++;
}
return errors;
}
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