syzbot


kernel BUG at net/packet/af_packet.c:LINE!

Status: closed as invalid on 2017/11/01 18:58
Reported-by: syzbot+907de6144b83bd17cc9e9b764b6c5b5a15a14722@syzkaller.appspotmail.com
First crash: 2399d, last: 2378d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG at net/packet/af_packet.c:LINE! (2) net 2 2307d 2310d 3/26 fixed on 2017/12/27 08:45
android-49 kernel BUG at net/packet/af_packet.c:LINE! C 10 2210d 2397d 0/3 closed as invalid on 2019/01/01 20:10
upstream kernel BUG at net/packet/af_packet.c:LINE! (3) net syz 5 2210d 2257d 8/26 fixed on 2018/07/29 21:25

Sample crash report:
------------[ cut here ]------------
kernel BUG at net/packet/af_packet.c:1521!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 13132 Comm: syzkaller086204 Not tainted 4.13.0-rc7+ #35
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801ca2dc380 task.stack: ffff8801ca3c0000
RIP: 0010:__fanout_unlink net/packet/af_packet.c:1521 [inline]
RIP: 0010:__unregister_prot_hook+0x139/0x280 net/packet/af_packet.c:367
RSP: 0018:ffff8801ca3c7700 EFLAGS: 00010297
RAX: ffff8801ca2dc380 RBX: ffff8801c9dc2500 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000ddd3d9e9 RDI: ffff8801ca2de388
RBP: ffff8801ca3c7740 R08: 0000000000000002 R09: 0000000000000004
R10: ffff8801ca3c75b8 R11: ffffffff843ecec7 R12: ffff8801ca2de380
R13: ffff8801c9dc2500 R14: 0000000000000000 R15: ffff8801ca3c7d70
FS:  00007f478da17700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f478da16e78 CR3: 00000001cf2ce000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 packet_set_ring+0xe7c/0x1b70 net/packet/af_packet.c:4305
 packet_setsockopt+0x6cd/0x1e80 net/packet/af_packet.c:3660
 SYSC_setsockopt net/socket.c:1852 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1831
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x445fb9
RSP: 002b:00007f478da16dc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445fb9
RDX: 0000000000000005 RSI: 0000000000000107 RDI: 000000000000010a
RBP: 0000000000000086 R08: 000000000000047e R09: 00007f478da17700
R10: 0000000020001000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007fff519516ff R14: 00007f478da179c0 R15: 0000000000000000
Code: 48 89 fa 48 c1 ea 03 42 80 3c 3a 00 0f 85 4e 01 00 00 4d 3b 6c c4 28 74 16 83 c3 01 e8 a1 47 2f fd 44 39 f3 75 cd e8 97 47 2f fd <0f> 0b 31 c0 41 8d 5e ff 48 89 45 c0 e8 86 47 2f fd 49 8d 7c dc 
RIP: __fanout_unlink net/packet/af_packet.c:1521 [inline] RSP: ffff8801ca3c7700
RIP: __unregister_prot_hook+0x139/0x280 net/packet/af_packet.c:367 RSP: ffff8801ca3c7700
---[ end trace c4eeba8fd1b8732a ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (43):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/09/02 18:42 net-next-old 32d9b70a053a a54dce00 .config console log report syz C ci-upstream-net-kasan-gce
2017/09/04 14:54 linux-next 9829d9f31f6c f400a0da .config console log report syz C ci-upstream-next-kasan-gce
2017/09/11 22:53 net-next-old ad9a19d00370 96b8e399 .config console log report syz ci-upstream-net-kasan-gce
2017/09/09 21:46 net-next-old 80cee03bf1d6 d18bfda0 .config console log report syz ci-upstream-net-kasan-gce
2017/09/07 04:13 net-next-old 80cee03bf1d6 d18bfda0 .config console log report syz ci-upstream-net-kasan-gce
2017/09/21 12:54 mmots 720bbe532b7c c26ea367 .config console log report syz ci-upstream-mmots-kasan-gce
2017/09/21 11:33 mmots 720bbe532b7c c26ea367 .config console log report syz ci-upstream-mmots-kasan-gce
2017/09/19 00:54 mmots 720bbe532b7c c26ea367 .config console log report syz ci-upstream-mmots-kasan-gce
2017/09/10 04:14 linux-next 58bcd35f859b d18bfda0 .config console log report syz skylake-linux-next-kasan-qemu
2017/09/07 04:30 linux-next e9fcbcd00963 0ed1da4a .config console log report syz skylake-linux-next-kasan-qemu
2017/09/05 15:14 linux-next 744c56def809 0ed1da4a .config console log report syz skylake-linux-next-kasan-qemu
2017/09/04 20:54 linux-next 9829d9f31f6c f400a0da .config console log report syz skylake-linux-next-kasan-qemu
2017/09/04 14:41 linux-next 9829d9f31f6c f400a0da .config console log report syz ci-upstream-next-kasan-gce
2017/09/08 12:23 upstream 5969d1bb3082 d18bfda0 .config console log report ci-upstream-kasan-gce
2017/09/24 00:00 net-next-old 3fb5ec06578e c26ea367 .config console log report ci-upstream-net-kasan-gce
2017/09/23 00:31 net-next-old 411d788a23f7 c26ea367 .config console log report ci-upstream-net-kasan-gce
2017/09/22 08:03 net-next-old ae3e24fd547e c26ea367 .config console log report ci-upstream-net-kasan-gce
2017/09/22 03:54 net-next-old ae3e24fd547e c26ea367 .config console log report ci-upstream-net-kasan-gce
2017/09/18 06:43 net-next-old 2bd6bf03f4c1 96b8e399 .config console log report ci-upstream-net-kasan-gce
2017/09/17 08:35 net-next-old 2bd6bf03f4c1 96b8e399 .config console log report ci-upstream-net-kasan-gce
2017/09/16 17:46 net-next-old ad9a19d00370 96b8e399 .config console log report ci-upstream-net-kasan-gce
2017/09/16 00:28 net-next-old ad9a19d00370 96b8e399 .config console log report ci-upstream-net-kasan-gce
2017/09/11 09:44 net-next-old ad9a19d00370 96b8e399 .config console log report ci-upstream-net-kasan-gce
2017/09/10 09:13 net-next-old ad9a19d00370 96b8e399 .config console log report ci-upstream-net-kasan-gce
2017/09/09 21:00 net-next-old 80cee03bf1d6 d18bfda0 .config console log report ci-upstream-net-kasan-gce
2017/09/09 14:05 net-next-old 80cee03bf1d6 d18bfda0 .config console log report ci-upstream-net-kasan-gce
2017/09/09 07:06 net-next-old 80cee03bf1d6 d18bfda0 .config console log report ci-upstream-net-kasan-gce
2017/09/09 00:25 net-next-old 80cee03bf1d6 d18bfda0 .config console log report ci-upstream-net-kasan-gce
2017/09/20 08:46 mmots 720bbe532b7c c26ea367 .config console log report ci-upstream-mmots-kasan-gce
2017/09/19 21:19 linux-next 840cc455c5f5 92f543f0 .config console log report ci-upstream-next-kasan-gce
2017/09/16 22:06 linux-next 1f183459b514 da1873aa .config console log report skylake-linux-next-kasan-qemu
2017/09/07 05:48 mmots f7e207ece64a 0ed1da4a .config console log report ci-upstream-mmots-kasan-gce
2017/09/02 20:37 linux-next 1d53d908b79d a54dce00 .config console log report ci-upstream-next-kasan-gce
* Struck through repros no longer work on HEAD.