syzbot


WARNING in ieee80211_ibss_csa_beacon (2)

Status: upstream: reported on 2025/01/22 20:29
Reported-by: syzbot+4b2ba5be5f7ed9cf598d@syzkaller.appspotmail.com
First crash: 7d09h, last: 7d09h
Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in ieee80211_ibss_csa_beacon wireless C error 4997 705d 1574d 22/28 fixed on 2023/02/24 13:50
linux-4.19 WARNING in ieee80211_ibss_csa_beacon C error 1037 695d 1530d 0/1 upstream: reported C repro on 2020/11/22 05:50
linux-4.14 WARNING in ieee80211_ibss_csa_beacon C 1 711d 1543d 0/1 upstream: reported C repro on 2020/11/08 18:28
linux-5.15 WARNING in ieee80211_ibss_csa_beacon 504 82d 692d 0/3 auto-obsoleted due to no activity on 2025/01/17 15:26
upstream WARNING in ieee80211_ibss_csa_beacon (2) wireless 2892 367d 701d 0/28 auto-obsoleted due to no activity on 2024/04/07 10:40
linux-6.1 WARNING in ieee80211_ibss_csa_beacon 302 20d 694d 0/3 upstream: reported on 2023/03/08 04:59

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 14769 at net/mac80211/ibss.c:503 ieee80211_ibss_csa_beacon+0x572/0x620
Modules linked in:
CPU: 1 PID: 14769 Comm: kworker/u4:9 Not tainted 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: phy33 ieee80211_csa_finalize_work
RIP: 0010:ieee80211_ibss_csa_beacon+0x572/0x620 net/mac80211/ibss.c:503
Code: f7 c6 05 9e 1c 2a 04 01 48 c7 c7 d0 75 b8 8b be 01 02 00 00 48 c7 c2 60 76 b8 8b e8 78 7c 96 f7 e9 6a fe ff ff e8 9e d4 b3 f7 <0f> 0b b8 ea ff ff ff e9 7a ff ff ff e8 8d d4 b3 f7 0f 0b e9 f5 fa
RSP: 0018:ffffc900031cfb68 EFLAGS: 00010293
RAX: ffffffff89ccb042 RBX: ffff8880779bb710 RCX: ffff88805c193b80
RDX: 0000000000000000 RSI: ffffffff8aab2b80 RDI: ffffffff8af9f340
RBP: ffff88805402dae2 R08: dffffc0000000000 R09: fffffbfff213143a
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805402dae8
R13: ffff8880779b85c0 R14: ffff88805402cc80 R15: ffff88805402db08
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3a41c4 CR3: 00000000252d2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_set_after_csa_beacon net/mac80211/cfg.c:3188 [inline]
 __ieee80211_csa_finalize net/mac80211/cfg.c:3244 [inline]
 ieee80211_csa_finalize+0x472/0xb10 net/mac80211/cfg.c:3267
 ieee80211_csa_finalize_work+0xf8/0x140 net/mac80211/cfg.c:3292
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/22 20:29 linux-5.15.y 4735586da88e a44b0418 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in ieee80211_ibss_csa_beacon
* Struck through repros no longer work on HEAD.