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WARNING in __cfg80211_ibss_joined

Status: upstream: reported C repro on 2023/03/08 19:50
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+bc4633dace1e9260de4a@syzkaller.appspotmail.com
First crash: 947d, last: 22h00m
▶ ▼ Bug presence (3)
Date Name Commit Repro Result
2024/04/28 linux-5.15.y (ToT) b925f60c6ee7 C [report] WARNING in __cfg80211_ibss_joined
2023/05/13 upstream (ToT) 9a48d6046722 C [report] WARNING in __cfg80211_ibss_joined
2024/04/28 upstream (ToT) 2c8159388952 C Didn't crash
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in __cfg80211_ibss_joined wireless -1 8 2047d 2067d 0/29 auto-closed as invalid on 2020/07/02 02:22
linux-6.6 WARNING in __cfg80211_ibss_joined -1 9 6d23h 114d 0/2 upstream: reported on 2025/06/19 03:38
linux-4.14 WARNING in __cfg80211_ibss_joined -1 C 12 965d 1843d 0/1 upstream: reported C repro on 2020/09/24 13:20
linux-6.1 WARNING in __cfg80211_ibss_joined origin:upstream missing-backport -1 C inconclusive 92 1d16h 938d 0/3 upstream: reported C repro on 2023/03/18 13:26
upstream WARNING in __cfg80211_ibss_joined (2) wireless -1 C error 6866 11h53m 1843d 0/29 upstream: reported C repro on 2020/09/24 09:26
linux-4.19 WARNING in __cfg80211_ibss_joined -1 C 236 957d 1805d 0/1 upstream: reported C repro on 2020/11/01 17:19
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/09/25 20:20 14m retest repro linux-5.15.y OK log
2025/08/17 15:00 14m retest repro linux-5.15.y report log
2025/08/17 15:00 10m retest repro linux-5.15.y report log
2025/08/17 15:00 14m retest repro linux-5.15.y report log
2025/08/17 15:00 16m retest repro linux-5.15.y report log
2025/08/17 15:00 17m retest repro linux-5.15.y report log
2025/06/02 20:00 11m retest repro linux-5.15.y report log
2025/05/02 10:51 15m retest repro linux-5.15.y report log
2025/05/02 10:51 9m retest repro linux-5.15.y report log
2025/05/02 10:51 9m retest repro linux-5.15.y report log
▶ ▼ Fix bisection attempts (4)
Created Duration User Patch Repo Result
2024/09/24 19:12 3h27m bisect fix linux-5.15.y OK (0) job log log
2024/06/26 10:05 4h26m fix candidate upstream OK (0) job log log
2023/10/29 09:25 0m bisect fix linux-5.15.y error job log
2023/06/26 16:14 42m bisect fix linux-5.15.y OK (0) job log log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3549 at net/wireless/ibss.c:37 __cfg80211_ibss_joined+0x42b/0x4b0
Modules linked in:
CPU: 0 PID: 3549 Comm: kworker/u4:2 Not tainted 5.15.112-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Workqueue: cfg80211 cfg80211_event_work

RIP: 0010:__cfg80211_ibss_joined+0x42b/0x4b0 net/wireless/ibss.c:37
Code: 3b 84 24 80 00 00 00 0f 85 8e 00 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 7e 03 e8 f7 0f 0b eb bf e8 75 03 e8 f7 <0f> 0b eb b1 e8 6c 03 e8 f7 0f 0b e9 70 fd ff ff e8 60 03 e8 f7 0f
RSP: 0018:ffffc90002dffac0 EFLAGS: 00010293
RAX: ffffffff8997e56b RBX: 0000000000000006 RCX: ffff888020568000
RDX: 0000000000000000 RSI: ffffffff8a8afb60 RDI: ffffffff8ad85d40
RBP: ffffc90002dffba0 R08: dffffc0000000000 R09: fffffbfff1f7902e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888070edcc90
R13: dffffc0000000000 R14: ffff888018a1b510 R15: 1ffff920005bff60
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffb2aacb1f8 CR3: 0000000023598000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 cfg80211_process_wdev_events+0x39f/0x4c0 net/wireless/util.c:980
 cfg80211_process_rdev_events+0xa8/0x100 net/wireless/util.c:1006
 cfg80211_event_work+0x2b/0x40 net/wireless/core.c:328
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2307
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2454
 kthread+0x3f6/0x4f0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>

Crashes (81):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/05/22 13:07 linux-5.15.y 9d6bde853685 4bce1a3e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2023/05/22 09:41 linux-5.15.y 9d6bde853685 4bce1a3e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2023/04/30 17:33 linux-5.15.y f48aeeaaa64c 62df2017 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2023/03/18 11:10 linux-5.15.y 8020ae3c051d 7939252e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2024/12/07 06:22 linux-5.15.y 0a51d2d4527b 9ac0fdc6 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2024/02/23 23:35 linux-5.15.y 458ce51d0356 8d446f15 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2023/04/01 07:23 linux-5.15.y c957cbb87315 f325deb0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2023/04/01 03:32 linux-5.15.y c957cbb87315 f325deb0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2023/03/19 09:39 linux-5.15.y 8020ae3c051d 7939252e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2023/03/18 13:33 linux-5.15.y 8020ae3c051d 7939252e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2023/05/07 19:30 linux-5.15.y 8a7f2a5c5aa1 90c93c40 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2025/10/10 19:33 linux-5.15.y 29e53a5b1c4f ff1712fe .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/09/27 11:31 linux-5.15.y 43bb85222e53 001c9061 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/09/11 17:07 linux-5.15.y 43bb85222e53 fdeaa69b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/09/09 12:24 linux-5.15.y 7a6c2d093c45 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/09/04 05:56 linux-5.15.y 01879f56bdde d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/08/27 04:36 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/08/21 06:57 linux-5.15.y c79648372d02 0b9605c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2025/08/19 22:22 linux-5.15.y c79648372d02 254a27c1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/08/19 13:46 linux-5.15.y c79648372d02 254a27c1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/08/19 06:38 linux-5.15.y c79648372d02 523f460e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/08/03 08:17 linux-5.15.y c79648372d02 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/30 09:26 linux-5.15.y c79648372d02 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/26 14:18 linux-5.15.y c79648372d02 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/26 11:43 linux-5.15.y c79648372d02 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/23 20:52 linux-5.15.y c79648372d02 e1dd4f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/22 17:29 linux-5.15.y c79648372d02 8e9d1dc1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/18 08:07 linux-5.15.y c79648372d02 88248e14 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/14 12:57 linux-5.15.y 2f693b607545 d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/05 11:10 linux-5.15.y 3dea0e7f549e 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/07/01 17:33 linux-5.15.y 3dea0e7f549e 091a06cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/06/22 22:44 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/06/21 09:23 linux-5.15.y 1c700860e8bc d6cdfb8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2025/06/20 20:40 linux-5.15.y 1c700860e8bc 804b3919 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/06/14 07:42 linux-5.15.y 1c700860e8bc 0e8da31f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/06/11 13:37 linux-5.15.y 1c700860e8bc 5d7e17ca .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2025/05/19 16:14 linux-5.15.y a68c15152131 b84f0537 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2025/03/12 21:20 linux-5.15.y c16c81c81336 1a5d9317 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2025/01/12 10:19 linux-5.15.y 4735586da88e 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2025/01/10 14:34 linux-5.15.y 4735586da88e 67d7ec0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2025/01/04 23:47 linux-5.15.y 91786f140358 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2024/11/23 01:50 linux-5.15.y 0a51d2d4527b 68da6d95 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2024/10/21 15:23 linux-5.15.y 584a40a22cb9 f1e4447c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2024/10/14 02:36 linux-5.15.y 3a5928702e71 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2024/10/13 21:17 linux-5.15.y 3a5928702e71 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2024/10/10 19:40 linux-5.15.y 3a5928702e71 8fbfc0c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2024/10/09 15:27 linux-5.15.y 3a5928702e71 56fb2cb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2024/10/03 22:26 linux-5.15.y 3a5928702e71 d7906eff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2024/09/27 05:13 linux-5.15.y 3a5928702e71 9314348a .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __cfg80211_ibss_joined
2023/03/08 23:41 linux-5.15.y d9b4a0c83a2d 4fc6d98d .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2025/02/26 09:04 linux-5.15.y c16c81c81336 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2025/01/21 19:13 linux-5.15.y 4735586da88e da72ac06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2025/01/20 03:20 linux-5.15.y 4735586da88e f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2025/01/15 14:24 linux-5.15.y 4735586da88e 7315a7cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2024/11/30 14:03 linux-5.15.y 0a51d2d4527b 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2024/10/17 03:41 linux-5.15.y 3a5928702e71 666f77ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2024/08/19 15:23 linux-5.15.y fa93fa65db6e 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __cfg80211_ibss_joined
2023/03/18 01:23 linux-5.15.y 8020ae3c051d 7939252e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2023/03/16 20:29 linux-5.15.y 2ddbd0f967b3 18b58603 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
2023/03/08 19:49 linux-5.15.y d9b4a0c83a2d 4fc6d98d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __cfg80211_ibss_joined
* Struck through repros no longer work on HEAD.