WARNING in ieee80211_do_stop

Status: upstream: reported on 2026/09/12 06:32
Reported-by: syzbot+f007ee81bb3dd463adaf@syzkaller.appspotmail.com
First crash: 28d, last: 12h50m
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in ieee80211_do_stop wireless -1 1 1547d 1543d 0/29 auto-obsoleted due to no activity on 2022/09/13 22:46
upstream WARNING in ieee80211_do_stop (2) wireless -1 5 817d 820d 0/29 auto-obsoleted due to no activity on 2024/10/22 18:25
linux-6.6 WARNING in ieee80211_do_stop -1 9 5d03h 26d 0/2 upstream: reported on 2026/09/13 18:40
upstream WARNING in ieee80211_do_stop (3) wireless -1 6 270d 412d 0/29 auto-obsoleted due to no activity on 2026/04/23 01:51

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 15105 at net/mac80211/iface.c:532 ieee80211_do_stop+0x1b35/0x2060 net/mac80211/iface.c:532
Modules linked in:
CPU: 1 PID: 15105 Comm: syz.8.2783 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:ieee80211_do_stop+0x1b35/0x2060 net/mac80211/iface.c:532
Code: f7 49 81 c4 98 06 00 00 4c 89 e0 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 ef 04 00 00 41 ff 0c 24 e9 f9 f5 ff ff e8 7b 22 d4 f7 <0f> 0b e9 f0 e8 ff ff e8 6f 22 d4 f7 48 c7 c7 c0 25 a7 8b 89 de e8
RSP: 0018:ffffc90004caf720 EFLAGS: 00010246
RAX: ffffffff89ae2405 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc90006059000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90004caf908 R08: ffffc90004caf5c7 R09: 1ffff92000995eb8
R10: dffffc0000000000 R11: fffff52000995eb9 R12: ffffc90004caf870
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff88807db76760
FS:  00007fd0fe2706c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffbf01d3eb8 CR3: 00000000273cf000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_stop+0x41f/0x490 net/mac80211/iface.c:817
 __dev_close_many+0x1d1/0x2b0 net/core/dev.c:1585
 dev_close_many+0x21c/0x400 net/core/dev.c:1610
 dev_close+0x154/0x210 net/core/dev.c:1636
 cfg80211_shutdown_all_interfaces+0xab/0x1c0 net/wireless/core.c:275
 cfg80211_rfkill_set_block+0x29/0x40 net/wireless/core.c:307
 rfkill_set_block+0x1c1/0x3c0 net/rfkill/core.c:360
 rfkill_fop_write+0x453/0x560 net/rfkill/core.c:1318
 vfs_write+0x2dc/0x9a0 fs/read_write.c:582
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd0fd39e1d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd0fe270028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd0fd625fa0 RCX: 00007fd0fd39e1d9
RDX: 0000000000000008 RSI: 0000200000000080 RDI: 0000000000000004
RBP: 00007fd0fd435888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd0fd626038 R14: 00007fd0fd625fa0 R15: 00007ffc28011428
 </TASK>

Crashes (29):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/10/09 21:47 linux-6.1.y a500ba24937a 4f92358f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/10/07 01:38 linux-6.1.y a500ba24937a f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/10/07 01:33 linux-6.1.y a500ba24937a f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/10/03 14:52 linux-6.1.y a500ba24937a 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/10/02 20:35 linux-6.1.y 1a8763b93150 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/10/02 10:46 linux-6.1.y 1a8763b93150 6d32eb1f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/10/01 15:41 linux-6.1.y 1a8763b93150 f5cdae2f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/10/01 15:39 linux-6.1.y 1a8763b93150 f5cdae2f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/09/30 09:03 linux-6.1.y 1a8763b93150 7808aef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/09/26 14:03 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/09/26 06:55 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/09/26 06:55 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/09/26 05:39 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/09/26 01:15 linux-6.1.y 1a8763b93150 f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/09/24 20:54 linux-6.1.y 1a8763b93150 3c3cdf19 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ieee80211_do_stop
2026/10/08 21:58 linux-6.1.y a500ba24937a b2734a59 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/08 21:58 linux-6.1.y a500ba24937a b2734a59 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/08 00:43 linux-6.1.y a500ba24937a 6520ecdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/07 14:39 linux-6.1.y a500ba24937a 6520ecdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/07 14:39 linux-6.1.y a500ba24937a 6520ecdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/07 14:33 linux-6.1.y a500ba24937a 6520ecdb .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/06 15:43 linux-6.1.y a500ba24937a f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/06 12:33 linux-6.1.y a500ba24937a f7710056 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/03 18:15 linux-6.1.y a500ba24937a 57bbd979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/10/01 07:13 linux-6.1.y 1a8763b93150 38f7f0d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/09/28 10:00 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/09/26 19:48 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/09/24 09:03 linux-6.1.y 1a8763b93150 0281b448 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
2026/09/12 06:31 linux-6.1.y cf82dcca9634 70a60e12 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in ieee80211_do_stop
* Struck through repros no longer work on HEAD.