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WARNING in __cfg80211_ibss_joined

Status: upstream: reported on 2025/06/19 03:38
Reported-by: syzbot+a32e3087f66d8affe3ec@syzkaller.appspotmail.com
First crash: 346d, last: 2d14h
▶ ▼ 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 2279d 2298d 0/29 auto-closed as invalid on 2020/07/02 02:22
linux-4.14 WARNING in __cfg80211_ibss_joined -1 C 12 1196d 2074d 0/1 upstream: reported C repro on 2020/09/24 13:20
linux-5.15 WARNING in __cfg80211_ibss_joined missing-backport origin:upstream -1 C 214 1d08h 1179d 0/3 upstream: reported C repro on 2023/03/08 19:50
linux-6.1 WARNING in __cfg80211_ibss_joined origin:upstream missing-backport -1 C inconclusive 267 2d18h 1169d 0/3 upstream: reported C repro on 2023/03/18 13:26
upstream WARNING in __cfg80211_ibss_joined (2) prio:high wireless -1 C error 6958 13d 2074d 0/29 upstream: reported C repro on 2020/09/24 09:26
linux-4.19 WARNING in __cfg80211_ibss_joined -1 C 236 1189d 2036d 0/1 upstream: reported C repro on 2020/11/01 17:19

Sample crash report:
wlan1: Creating new IBSS network, BSSID d6:55:5f:32:f6:bd
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7811 at net/wireless/ibss.c:37 __cfg80211_ibss_joined+0x3d2/0x440 net/wireless/ibss.c:37
Modules linked in:
CPU: 0 PID: 7811 Comm: kworker/u4:4 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: cfg80211 cfg80211_event_work
RIP: 0010:__cfg80211_ibss_joined+0x3d2/0x440 net/wireless/ibss.c:37
Code: 00 00 00 48 3b 84 24 80 00 00 00 75 5c 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 d7 01 9f f7 0f 0b eb bb e8 ce 01 9f f7 <0f> 0b 4c 8b 6c 24 18 eb ad e8 c0 01 9f f7 0f 0b e9 e0 fd ff ff e8
RSP: 0018:ffffc9000e09fa20 EFLAGS: 00010293
RAX: ffffffff89e82a22 RBX: dffffc0000000000 RCX: ffff88802bcd0000
RDX: 0000000000000000 RSI: ffffffff8acacbe0 RDI: ffffffff8b1c9a20
RBP: ffffc9000e09faf8 R08: ffffffff911cc56f R09: 1ffffffff22398ad
R10: dffffc0000000000 R11: fffffbfff22398ae R12: ffff88802c600c90
R13: 1ffff92001c13f4c R14: ffff888066eb35b8 R15: 000000000000001f
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa1bcbea540 CR3: 0000000020f1c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600
Call Trace:
 <TASK>
 cfg80211_process_wdev_events+0x3bc/0x550 net/wireless/util.c:1119
 cfg80211_process_rdev_events+0xa1/0x110 net/wireless/util.c:1147
 cfg80211_event_work+0x2f/0x40 net/wireless/core.c:335
 process_one_work kernel/workqueue.c:2653 [inline]
 process_scheduled_works+0xa5d/0x15d0 kernel/workqueue.c:2730
 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2811
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>

Crashes (123):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/05/28 14:00 linux-6.6.y 0a40c6fbd105 681715f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/27 16:12 linux-6.6.y 0a40c6fbd105 8777bdc3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/26 14:37 linux-6.6.y 0a40c6fbd105 a3e47276 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/22 17:00 linux-6.6.y eac8889a3a1c 5f091fcc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/22 09:48 linux-6.6.y eac8889a3a1c 70ae9b03 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/22 08:45 linux-6.6.y eac8889a3a1c 70ae9b03 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/20 17:31 linux-6.6.y eac8889a3a1c 62fb93a2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/19 13:39 linux-6.6.y eac8889a3a1c 223544dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/18 13:18 linux-6.6.y eac8889a3a1c 55156e84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/17 17:01 linux-6.6.y eac8889a3a1c de5aae85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/17 03:09 linux-6.6.y 4d922539ad7d de5aae85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/14 05:00 linux-6.6.y 3b9f64db0496 6ccb967e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/14 02:42 linux-6.6.y 3b9f64db0496 6ccb967e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/13 10:33 linux-6.6.y 3b9f64db0496 fec2a7ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/08 01:44 linux-6.6.y 258cf62a6dfd 5633175a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/05/06 20:46 linux-6.6.y 258cf62a6dfd 1dddfd3d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/30 15:52 linux-6.6.y 258cf62a6dfd a7464baf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/29 20:19 linux-6.6.y 142cd8382222 7ca9e4d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/29 12:45 linux-6.6.y 142cd8382222 7ca9e4d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/29 11:32 linux-6.6.y 142cd8382222 7ca9e4d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/28 23:18 linux-6.6.y 142cd8382222 95008c03 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/28 06:28 linux-6.6.y 142cd8382222 ce741359 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/28 04:26 linux-6.6.y 142cd8382222 ce741359 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/25 04:28 linux-6.6.y 9760bf04666d 9c2d0995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/25 03:14 linux-6.6.y 9760bf04666d 9c2d0995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/24 13:34 linux-6.6.y 9760bf04666d 1c2b9291 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/24 03:24 linux-6.6.y 9760bf04666d 9cfb3ca7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/23 17:18 linux-6.6.y 9760bf04666d 4c3406dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/21 21:33 linux-6.6.y 9760bf04666d 0b6ab7ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/21 18:02 linux-6.6.y 9760bf04666d 0b6ab7ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/17 05:34 linux-6.6.y 8cee53b8eaeb de0a551d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/17 04:40 linux-6.6.y 8cee53b8eaeb de0a551d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/11 17:47 linux-6.6.y 8cee53b8eaeb 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/10 14:10 linux-6.6.y 80de0a958133 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/09 11:04 linux-6.6.y 80de0a958133 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/08 20:09 linux-6.6.y 80de0a958133 d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/08 19:05 linux-6.6.y 80de0a958133 d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/03 10:27 linux-6.6.y 08667c1437c0 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/03 02:53 linux-6.6.y 08667c1437c0 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/02 18:13 linux-6.6.y 29242a623821 91bc79b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/04/02 17:03 linux-6.6.y 29242a623821 91bc79b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/03/31 03:03 linux-6.6.y c09fbcd31ae6 d0af506e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/03/28 05:34 linux-6.6.y c09fbcd31ae6 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2026/03/26 17:39 linux-6.6.y c09fbcd31ae6 766b6434 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan-perf WARNING in __cfg80211_ibss_joined
2025/10/04 18:01 linux-6.6.y f34f16e5c632 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __cfg80211_ibss_joined
2025/06/19 03:37 linux-6.6.y c2603c511feb ed3e87f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __cfg80211_ibss_joined
* Struck through repros no longer work on HEAD.