syzbot


WARNING in __cfg80211_ibss_joined

Status: upstream: reported C repro on 2020/11/01 17:19
Reported-by: syzbot+09f2dde8438cc109f77d@syzkaller.appspotmail.com
First crash: 699d, last: 9d18h
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in __cfg80211_ibss_joined 8 942d 961d 0/24 auto-closed as invalid on 2020/07/02 02:22
linux-4.14 WARNING in __cfg80211_ibss_joined C 12 13d 737d 0/1 upstream: reported C repro on 2020/09/24 13:20
upstream WARNING in __cfg80211_ibss_joined (2) C error 3865 26d 738d 0/24 upstream: reported C repro on 2020/09/24 09:26

Sample crash report:
IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
------------[ cut here ]------------
WARNING: CPU: 0 PID: 204 at net/wireless/ibss.c:36 __cfg80211_ibss_joined.cold+0x41/0x48 net/wireless/ibss.c:36
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 204 Comm: kworker/u4:3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Workqueue: cfg80211 cfg80211_event_work
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:__cfg80211_ibss_joined.cold+0x41/0x48 net/wireless/ibss.c:36
Code: ff e8 2a 46 4e f9 48 c7 c7 20 88 66 89 e8 89 77 df ff 0f 0b e9 03 de 76 ff e8 12 46 4e f9 48 c7 c7 20 88 66 89 e8 71 77 df ff <0f> 0b e9 eb dd 76 ff e8 fa 45 4e f9 48 c7 c7 20 88 66 89 e8 59 77
RSP: 0018:ffff8880b4f87c00 EFLAGS: 00010282
RAX: 0000000000000024 RBX: ffff8880ab4acfd0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10169f0f72
RBP: ffff8880ab4ac4c0 R08: 0000000000000024 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 1ffff110169f0f81
R13: ffff8880aba7ba18 R14: 0000000000000000 R15: 0000000000000001
 cfg80211_process_wdev_events+0x3db/0x5b0 net/wireless/util.c:886
 cfg80211_process_rdev_events+0x6e/0x100 net/wireless/util.c:912
 cfg80211_event_work+0x1a/0x20 net/wireless/core.c:305
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Kernel Offset: disabled
Rebooting in 86400 seconds..

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2021/07/26 18:32 linux-4.19.y 4938296e03bd 3e5ed8b4 .config log report syz C
* Struck through repros no longer work on HEAD.
Crashes (199):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2022/07/03 17:04 linux-4.19.y 3f8a27f9e27b 1434eec0 .config log report syz C WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/02/22 04:23 linux-4.19.y 3f8a27f9e27b 6e821dbf .config log report syz C WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2021/09/30 21:30 linux-4.19.y c2276d585654 0f01403d .config log report syz C WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2021/09/25 02:54 linux-4.19.y 2950c9c5e0df 8cac236e .config log report syz C WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2021/02/21 16:28 linux-4.19.y 255b58a2b3af 3e5ed8b4 .config log report syz C WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/01/08 22:56 linux-4.19.y 3f8a27f9e27b 2ca0d385 .config log report syz WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/01/03 07:35 linux-4.19.y 3f8a27f9e27b e1768e9c .config log report syz WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2021/12/22 18:30 linux-4.19.y 3f8a27f9e27b 6caa12e4 .config log report syz WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/09/22 15:54 linux-4.19.y 3f8a27f9e27b 0042f2b4 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/09/19 08:57 linux-4.19.y 3f8a27f9e27b dd9a85ff .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/09/17 01:21 linux-4.19.y 3f8a27f9e27b dd9a85ff .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/09/15 17:26 linux-4.19.y 3f8a27f9e27b dd9a85ff .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/09/12 07:57 linux-4.19.y 3f8a27f9e27b 356d8217 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/09/09 14:13 linux-4.19.y 3f8a27f9e27b 90058bdc .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/09/08 14:17 linux-4.19.y 3f8a27f9e27b f3027468 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/09/04 04:53 linux-4.19.y 3f8a27f9e27b 28811d0a .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/30 04:49 linux-4.19.y 3f8a27f9e27b 4a380809 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/28 13:29 linux-4.19.y 3f8a27f9e27b 07177916 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/24 13:47 linux-4.19.y 3f8a27f9e27b 514514f6 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/24 02:09 linux-4.19.y 3f8a27f9e27b cea8b0f7 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/22 20:22 linux-4.19.y 3f8a27f9e27b 26a13b38 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/20 03:22 linux-4.19.y 3f8a27f9e27b 26a13b38 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/08 07:57 linux-4.19.y 3f8a27f9e27b 88e3a122 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/05 23:59 linux-4.19.y 3f8a27f9e27b e853abd9 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/08/05 21:05 linux-4.19.y 3f8a27f9e27b e853abd9 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/07/21 08:30 linux-4.19.y 3f8a27f9e27b 6e67af9d .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/07/12 13:35 linux-4.19.y 3f8a27f9e27b da3d6955 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/07/08 07:29 linux-4.19.y 3f8a27f9e27b bff65f44 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/07/05 15:09 linux-4.19.y 3f8a27f9e27b bff65f44 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/07/04 01:17 linux-4.19.y 3f8a27f9e27b 1434eec0 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/06/21 23:21 linux-4.19.y 3f8a27f9e27b 0fc5c330 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/06/17 19:22 linux-4.19.y 3f8a27f9e27b 8f633d84 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/06/09 23:32 linux-4.19.y 3f8a27f9e27b 0d5abf15 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/06/07 09:12 linux-4.19.y 3f8a27f9e27b c8857892 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/06/06 21:16 linux-4.19.y 3f8a27f9e27b c8857892 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/05/31 10:05 linux-4.19.y 3f8a27f9e27b af70c3a9 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/05/28 18:54 linux-4.19.y 3f8a27f9e27b a46af346 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/05/22 00:37 linux-4.19.y 3f8a27f9e27b 7268fa62 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/05/12 14:55 linux-4.19.y 3f8a27f9e27b 9ad6612a .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/05/07 20:56 linux-4.19.y 3f8a27f9e27b e60b1103 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/24 01:21 linux-4.19.y 3f8a27f9e27b 131df97d .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/17 21:39 linux-4.19.y 3f8a27f9e27b 8bcc32a6 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/16 16:38 linux-4.19.y 3f8a27f9e27b 8bcc32a6 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/16 12:34 linux-4.19.y 3f8a27f9e27b 8bcc32a6 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/08 19:34 linux-4.19.y 3f8a27f9e27b e22c3da3 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/07 14:56 linux-4.19.y 3f8a27f9e27b 53c67432 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/05 17:05 linux-4.19.y 3f8a27f9e27b 0127c10f .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/04 13:35 linux-4.19.y 3f8a27f9e27b 79a2a8fc .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/04 11:23 linux-4.19.y 3f8a27f9e27b 79a2a8fc .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/04/03 12:06 linux-4.19.y 3f8a27f9e27b 79a2a8fc .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/03/31 11:00 linux-4.19.y 3f8a27f9e27b c4c32d8c .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/03/27 17:51 linux-4.19.y 3f8a27f9e27b 89bc8608 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/03/26 14:49 linux-4.19.y 3f8a27f9e27b 89bc8608 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/03/25 12:21 linux-4.19.y 3f8a27f9e27b 89bc8608 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/03/16 08:22 linux-4.19.y 3f8a27f9e27b 9e8eaa75 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/03/14 23:21 linux-4.19.y 3f8a27f9e27b 9e8eaa75 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/03/13 06:53 linux-4.19.y 3f8a27f9e27b 9e8eaa75 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2022/03/13 03:10 linux-4.19.y 3f8a27f9e27b 9e8eaa75 .config log report info WARNING in __cfg80211_ibss_joined
ci2-linux-4-19 2021/01/13 16:05 linux-4.19.y 675cc038067f a945f0a3 .config log report info
ci2-linux-4-19 2020/11/01 17:18 linux-4.19.y f5d8eef067ac 8bc4594f .config log report info
* Struck through repros no longer work on HEAD.