syzbot


WARNING in batadv_mcast_mla_update

Status: fixed on 2019/06/14 18:22
Subsystems: batman
[Documentation on labels]
Reported-by: syzbot+050927a651272b145a5d@syzkaller.appspotmail.com
Fix commit: a3c7cd0cdf11 batman-adv: mcast: fix multicast tt/tvlv worker locking
First crash: 1934d, last: 1795d
Discussions (9)
Title Replies (including bot) Last reply
[PATCH AUTOSEL 5.1 001/375] gfs2: Fix lru_count going negative 88 (88) 2019/06/17 15:57
[PATCH 4.19 000/276] 4.19.47-stable review 304 (304) 2019/06/06 19:22
[PATCH 5.0 000/346] 5.0.20-stable review 355 (355) 2019/05/31 14:18
[PATCH 5.1 000/405] 5.1.6-stable review 414 (414) 2019/05/31 14:16
[PATCH 4.14 000/193] 4.14.123-stable review 199 (199) 2019/05/31 05:16
[PATCH AUTOSEL 5.0 001/317] gfs2: Fix lru_count going negative 107 (107) 2019/05/29 19:00
[PATCH AUTOSEL 4.19 001/244] gfs2: Fix lru_count going negative 84 (84) 2019/05/22 19:29
[PATCH 0/2] pull request for net: batman-adv 2019-05-09 4 (4) 2019/05/09 16:45
WARNING in batadv_mcast_mla_update 0 (1) 2018/12/31 04:17
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in batadv_mcast_mla_update 5 1807d 1821d 0/1 auto-closed as invalid on 2019/10/25 08:48
linux-4.19 WARNING in batadv_mcast_mla_update 2 1787d 1810d 0/1 auto-closed as invalid on 2019/10/25 08:51

Sample crash report:
WARNING: CPU: 1 PID: 884 at net/batman-adv/multicast.c:371 batadv_mcast_mla_tt_add net/batman-adv/multicast.c:371 [inline]
WARNING: CPU: 1 PID: 884 at net/batman-adv/multicast.c:371 __batadv_mcast_mla_update net/batman-adv/multicast.c:636 [inline]
WARNING: CPU: 1 PID: 884 at net/batman-adv/multicast.c:371 batadv_mcast_mla_update+0x1927/0x1ec0 net/batman-adv/multicast.c:661
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 884 Comm: kworker/u4:3 Not tainted 5.1.0-rc7+ #99
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_mcast_mla_update
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:batadv_mcast_mla_tt_add net/batman-adv/multicast.c:371 [inline]
RIP: 0010:__batadv_mcast_mla_update net/batman-adv/multicast.c:636 [inline]
RIP: 0010:batadv_mcast_mla_update+0x1927/0x1ec0 net/batman-adv/multicast.c:661
Code: 00 0f 85 95 05 00 00 4c 3b ad d0 fe ff ff 4c 89 ef 4d 8b 65 00 0f 85 a0 fb ff ff e8 93 c9 7c fa e9 a6 ef ff ff e8 89 c9 7c fa <0f> 0b e9 64 ec ff ff e8 7d c9 7c fa 8b b5 a8 fe ff ff 31 ff e8 f0
RSP: 0018:ffff8880a8177bc0 EFLAGS: 00010293
RAX: ffff8880a8168400 RBX: 0000000000000001 RCX: ffffffff86f3af89
RDX: 0000000000000000 RSI: ffffffff86f3c327 RDI: 0000000000000007
RBP: ffff8880a8177d30 R08: ffff8880a8168400 R09: 0000000000000003
R10: ffffed1015d25bc7 R11: ffff8880ae92de3b R12: ffff8880a8177c98
R13: ffff8880a0a58548 R14: 0000000000000000 R15: ffff8880a8177d08
 process_one_work+0x98e/0x1790 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (75):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/05/04 04:25 upstream a4ccb5f9dc6c d28f4ce5 .config console log report ci-upstream-kasan-gce-root
2019/03/03 11:48 upstream c027c7cf1577 1c0e457a .config console log report ci-upstream-kasan-gce-selinux-root
2019/03/02 11:55 upstream a215ce8f0e00 1c0e457a .config console log report ci-upstream-kasan-gce
2019/03/02 02:25 upstream a215ce8f0e00 68d9e495 .config console log report ci-upstream-kasan-gce
2019/03/01 00:53 upstream 7d762d69145a 09aeeba4 .config console log report ci-upstream-kasan-gce-smack-root
2019/02/28 10:31 upstream 7d762d69145a 09aeeba4 .config console log report ci-upstream-kasan-gce-root
2019/02/27 21:32 upstream 7d762d69145a 083cfd0e .config console log report ci-upstream-kasan-gce-selinux-root
2019/02/27 07:41 upstream 7d762d69145a f2468c12 .config console log report ci-upstream-kasan-gce-smack-root
2019/02/27 04:04 upstream 7d762d69145a f2468c12 .config console log report ci-upstream-kasan-gce
2019/02/26 16:53 upstream 7d762d69145a a36ecd98 .config console log report ci-upstream-kasan-gce-root
2019/02/22 00:46 upstream 8a61716ff2ab 7ff74a98 .config console log report ci-upstream-kasan-gce-smack-root
2019/02/21 20:04 upstream f6163d67cc31 3133098b .config console log report ci-upstream-kasan-gce-smack-root
2019/02/20 17:15 upstream 40e196a906d9 c95f0707 .config console log report ci-upstream-kasan-gce-selinux-root
2019/02/20 14:38 upstream 40e196a906d9 c95f0707 .config console log report ci-upstream-kasan-gce
2019/02/19 21:15 upstream b5372fe5dc84 4df543c9 .config console log report ci-upstream-kasan-gce-selinux-root
2019/02/19 18:23 upstream b5372fe5dc84 4df543c9 .config console log report ci-upstream-kasan-gce-selinux-root
2019/02/16 04:52 upstream 5ded5871030e f42dee6d .config console log report ci-upstream-kasan-gce
2019/02/13 03:25 upstream 57902dc0670c 1eedba36 .config console log report ci-upstream-kasan-gce
2019/02/12 04:21 upstream aa0c38cf39de 65a0d619 .config console log report ci-upstream-kasan-gce-smack-root
2019/02/11 00:21 upstream 68d94a842435 b4f792e4 .config console log report ci-upstream-kasan-gce-root
2019/02/07 20:21 upstream b0314565da2b aa4feb03 .config console log report ci-upstream-kasan-gce
2019/02/04 10:21 upstream 8834f5600cf3 c198d5dd .config console log report ci-upstream-kasan-gce-smack-root
2019/02/03 21:27 upstream 24b888d8d598 c198d5dd .config console log report ci-upstream-kasan-gce
2019/01/28 11:36 upstream f17b5f06cb92 629c2a27 .config console log report ci-upstream-kasan-gce
2019/01/26 23:22 upstream ba6069759381 c73f090a .config console log report ci-upstream-kasan-gce-selinux-root
2019/01/22 09:35 upstream 48b161983ae5 985f75cc .config console log report ci-upstream-kasan-gce-root
2019/01/22 04:00 upstream 52e60b754438 badbbeee .config console log report ci-upstream-kasan-gce-smack-root
2019/01/20 10:48 upstream b0efca46b570 353f32ea .config console log report ci-upstream-kasan-gce
2019/01/19 17:07 upstream 2339e91d0e66 8aa587b0 .config console log report ci-upstream-kasan-gce-root
2019/01/16 21:16 upstream 47bfa6d9dc8c d538790b .config console log report ci-upstream-kasan-gce
2019/01/16 14:53 upstream 47bfa6d9dc8c d538790b .config console log report ci-upstream-kasan-gce-smack-root
2019/01/16 07:25 upstream 7939f8beecf1 b47fa78d .config console log report ci-upstream-kasan-gce-smack-root
2019/01/14 03:08 upstream 1c7fc5cbc339 c3f3344c .config console log report ci-upstream-kasan-gce
2019/01/12 04:52 upstream de6629eb262e c3f3344c .config console log report ci-upstream-kasan-gce-selinux-root
2019/01/11 07:36 upstream 1bdbe2274920 80dde172 .config console log report ci-upstream-kasan-gce-smack-root
2019/01/09 11:17 upstream a88cc8da0279 45c0c1b1 .config console log report ci-upstream-kasan-gce
2019/01/07 04:21 upstream 574823bfab82 ee332608 .config console log report ci-upstream-kasan-gce-root
2019/01/06 17:26 upstream b5aef86e089a 94f8adb5 .config console log report ci-upstream-kasan-gce-selinux-root
2019/01/06 01:44 upstream f1c2f8857c5a 53be0a37 .config console log report ci-upstream-kasan-gce
2019/01/05 06:14 upstream 3fed6ae4b027 53be0a37 .config console log report ci-upstream-kasan-gce-selinux-root
2019/01/03 15:52 upstream 645ff1e8e704 66fcd29b .config console log report ci-upstream-kasan-gce-root
2019/01/01 16:15 upstream e1ef035d272e 3d85f48c .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/29 18:29 upstream 903b77c63167 a40793d7 .config console log report ci-upstream-kasan-gce
2018/12/29 16:49 upstream 903b77c63167 a40793d7 .config console log report ci-upstream-kasan-gce
2018/12/28 18:58 upstream 00c569b567c7 fc6ae81a .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/28 13:47 upstream 00c569b567c7 fc6ae81a .config console log report ci-upstream-kasan-gce-root
2018/12/28 05:33 upstream b71acb0e3721 af317504 .config console log report ci-upstream-kasan-gce
2018/12/27 20:48 upstream fc2fd5f0f1aa 43cf01dd .config console log report ci-upstream-kasan-gce-root
2018/12/27 15:54 upstream fc2fd5f0f1aa 43cf01dd .config console log report ci-upstream-kasan-gce
2018/12/27 04:15 upstream eed9688f8513 e747ec98 .config console log report ci-upstream-kasan-gce
2018/12/27 03:08 upstream eed9688f8513 e747ec98 .config console log report ci-upstream-kasan-gce
2019/03/03 19:26 upstream c027c7cf1577 1c0e457a .config console log report ci-upstream-kasan-gce-386
2019/02/18 23:31 upstream 301e361072e5 59f36113 .config console log report ci-upstream-kasan-gce-386
2019/01/21 23:01 upstream 49a57857aeea badbbeee .config console log report ci-upstream-kasan-gce-386
2018/12/27 18:58 upstream fc2fd5f0f1aa 43cf01dd .config console log report ci-upstream-kasan-gce-386
2019/03/05 14:54 net-old 822e44b45eb9 bb91cf81 .config console log report ci-upstream-net-this-kasan-gce
2019/02/21 22:56 bpf 11fe9262ed22 7ff74a98 .config console log report ci-upstream-bpf-kasan-gce
2019/02/07 23:03 net-old e8c32c32b48c aa4feb03 .config console log report ci-upstream-net-this-kasan-gce
2019/02/05 19:11 bpf 0429f237ce08 d672172c .config console log report ci-upstream-bpf-kasan-gce
2019/01/17 20:10 bpf 583c53185399 769e75ed .config console log report ci-upstream-bpf-kasan-gce
2018/12/29 14:40 bpf b71acb0e3721 a40793d7 .config console log report ci-upstream-bpf-kasan-gce
2018/12/28 20:06 bpf b71acb0e3721 fc6ae81a .config console log report ci-upstream-bpf-kasan-gce
2018/12/27 08:01 net-old 38355a5f9a22 e747ec98 .config console log report ci-upstream-net-this-kasan-gce
2019/05/14 10:15 bpf-next 80f232121b69 ada3c44c .config console log report ci-upstream-bpf-next-kasan-gce
2019/04/29 19:07 bpf-next 9076c49bdca2 b617407b .config console log report ci-upstream-bpf-next-kasan-gce
2019/01/12 11:38 bpf-next b71acb0e3721 c3f3344c .config console log report ci-upstream-bpf-next-kasan-gce
2019/01/12 09:43 bpf-next b71acb0e3721 c3f3344c .config console log report ci-upstream-bpf-next-kasan-gce
2018/12/31 18:30 bpf-next b71acb0e3721 2b42fdc8 .config console log report ci-upstream-bpf-next-kasan-gce
2019/01/14 13:20 linux-next 8ce4d582f564 95485883 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/01/13 03:40 linux-next b808822a75a3 c3f3344c .config console log report ci-upstream-linux-next-kasan-gce-root
2019/01/05 09:33 linux-next a4983672f9ca 53be0a37 .config console log report ci-upstream-linux-next-kasan-gce-root
2018/12/29 18:00 linux-next 6a1d293238c1 a40793d7 .config console log report ci-upstream-linux-next-kasan-gce-root
2018/12/29 16:15 linux-next 6a1d293238c1 a40793d7 .config console log report ci-upstream-linux-next-kasan-gce-root
2018/12/27 19:14 linux-next 6a1d293238c1 43cf01dd .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.