From: Dmitry V. Levin <ldv@altlinux.org>
Date: Mon, 6 Feb 2012 17:13:59 +0000 (+0000)
Subject: strace -P: fix handling of invalid syscalls
X-Git-Tag: v4.7~172
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bdec9cbcebd256dbebf8fd2f7e35dec55b8bd5ae;p=strace

strace -P: fix handling of invalid syscalls

* pathtrace.c (pathtrace_match): Check the given syscall number using
SCNO_IN_RANGE.
---

diff --git a/pathtrace.c b/pathtrace.c
index d7ba87cc..5fa8be4c 100644
--- a/pathtrace.c
+++ b/pathtrace.c
@@ -179,6 +179,9 @@ pathtrace_match(struct tcb *tcp)
 	if (selected[0] == NULL)
 		return 1;
 
+	if (!SCNO_IN_RANGE(tcp->scno))
+		return 0;
+
 	s = &sysent[tcp->scno];
 
 	if (!(s->sys_flags & (TRACE_FILE | TRACE_DESC)))