syzbot


WARNING in cfg80211_scan_done

Status: upstream: reported on 2026/07/15 05:27
Reported-by: syzbot+12e8bde381f7bc88b1f4@syzkaller.appspotmail.com
First crash: 5h00m, last: 5h00m
Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 WARNING in cfg80211_scan_done -1 3 533d 536d 0/3 auto-obsoleted due to no activity on 2025/05/07 16:33
upstream WARNING in cfg80211_scan_done prio:high wireless -1 C error error 84 21h44m 700d 0/29 upstream: reported C repro on 2024/08/13 14:03
linux-6.1 WARNING in cfg80211_scan_done (2) origin:upstream -1 syz error 5 99d 397d 0/3 upstream: reported syz repro on 2025/06/13 02:16
linux-5.15 WARNING in cfg80211_scan_done -1 2 480d 488d 0/3 auto-obsoleted due to no activity on 2025/06/30 10:14

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3517 at net/wireless/scan.c:1144 cfg80211_scan_done+0x2dc/0x480 net/wireless/scan.c:1143
Modules linked in:
CPU: 1 PID: 3517 Comm: kworker/u4:12 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:cfg80211_scan_done+0x2dc/0x480 net/wireless/scan.c:1143
Code: 00 00 00 48 3b 44 24 60 75 68 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 40 23 a6 f7 0f 0b e9 ed fd ff ff e8 34 23 a6 f7 <0f> 0b e9 cd fe ff ff e8 28 23 a6 f7 0f 0b e9 28 fe ff ff 44 89 f9
RSP: 0018:ffffc9000d1779a0 EFLAGS: 00010293
RAX: ffffffff89e0c23c RBX: ffff8880676e0000 RCX: ffff88802e6f3c00
RDX: 0000000000000000 RSI: ffffffff8b1cfa00 RDI: ffffffff8b1cf9c0
RBP: ffffc9000d177a48 R08: ffffffff8e8c6b2f R09: 1ffffffff1d18d65
R10: dffffc0000000000 R11: fffffbfff1d18d66 R12: dffffc0000000000
R13: 1ffff1100cedc00d R14: ffff8880676e0068 R15: ffff88802f0c01b8
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555927f9f8 CR3: 0000000061f93000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 __ieee80211_scan_completed+0x4d2/0x9c0 net/mac80211/scan.c:472
 ieee80211_scan_work+0x2b7/0x1b30 net/mac80211/scan.c:1158
 cfg80211_wiphy_work+0x228/0x260 net/wireless/core.c:437
 process_one_work kernel/workqueue.c:2653 [inline]
 process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2730
 worker_thread+0xa5e/0xfe0 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 (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/07/15 05:27 linux-6.6.y da47cbc25466 2130f682 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in cfg80211_scan_done
* Struck through repros no longer work on HEAD.