Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Decorate in6_clearscope() with __noubsan 

sys/netinet6/scope6.c:480:6,
member access within misaligned address 0xffff9457bc441286 for type
'struct in6_addr' which requires 4 byte alignment

This issue is caused by accessing non-__packed struct in __packed.
This is a[always?] false-positive reported by the sanitizer and there is no
clear non-invasive approach to handle this, without changing ABI of long
term existing code.

Reported-by: syzbot+b53a9bcf030288081e65@syzkaller.appspotmail.com
This commit is contained in:
kamil 2019-09-20 14:53:24 +00:00
parent 0cbecf0304
commit a5df2084c7
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sys/netinet6/scope6.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: scope6.c,v 1.20 2018/05/01 07:21:39 maxv Exp $ */
/* $NetBSD: scope6.c,v 1.21 2019/09/20 14:53:24 kamil Exp $ */
/* $KAME$ */
/*
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: scope6.c,v 1.20 2018/05/01 07:21:39 maxv Exp $");
__KERNEL_RCSID(0, "$NetBSD: scope6.c,v 1.21 2019/09/20 14:53:24 kamil Exp $");
#include <sys/param.h>
#include <sys/malloc.h>
@ -472,6 +472,7 @@ in6_getscopename(const struct in6_addr *addr)
* Just clear the embedded scope identifier. Return 0 if the original address
* is intact; return non 0 if the address is modified.
*/
__noubsan
int
in6_clearscope(struct in6_addr *in6)
{