From f689d40a08ae1c9d73d043e7a2e807bc4022931b Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Fri, 19 Feb 2021 12:52:30 +0100
Subject: executor: don't fail in syz_genetlink_get_family_id

We used to use our own netlink socket and then fail
on any errors. But commit "sys/linux: add ieee802154 descriptions"
made it possible to use fuzzer-provided socket,
and fuzzer can pass any invalid fd.
So don't fail on errors now.

Fixes #2444
---
 executor/executor.cc | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'executor/executor.cc')

diff --git a/executor/executor.cc b/executor/executor.cc
index 71e3e7b71..5bb2d7226 100644
--- a/executor/executor.cc
+++ b/executor/executor.cc
@@ -1543,11 +1543,13 @@ void debug(const char* msg, ...)
 {
 	if (!flag_debug)
 		return;
+	int err = errno;
 	va_list args;
 	va_start(args, msg);
 	vfprintf(stderr, msg, args);
 	va_end(args);
 	fflush(stderr);
+	errno = err;
 }
 
 void debug_dump_data(const char* data, int length)
-- 
cgit mrf-deployment