syzbot


WARNING in ieee80211_request_ibss_scan

Status: upstream: reported on 2025/01/09 17:09
Reported-by: syzbot+ff9c38fbab99453919d5@syzkaller.appspotmail.com
First crash: 77d, last: 30d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in ieee80211_request_ibss_scan wireless 112 4d05h 79d 0/28 upstream: reported on 2025/01/07 16:25

Sample crash report:
wlan1: Trigger new scan to find an IBSS to join
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4640 at net/mac80211/scan.c:1219 ieee80211_request_ibss_scan+0x82e/0x8d0
Modules linked in:
CPU: 1 PID: 4640 Comm: kworker/u4:8 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: phy12 ieee80211_iface_work
RIP: 0010:ieee80211_request_ibss_scan+0x82e/0x8d0 net/mac80211/scan.c:1219
Code: 89 c3 4c 89 e7 e8 52 fd 7c 00 89 d8 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ec a8 b5 f7 e9 4f fb ff ff e8 e2 a8 b5 f7 <0f> 0b bb f0 ff ff ff 4c 8b 64 24 28 eb ca 89 d9 80 e1 07 80 c1 03
RSP: 0018:ffffc900033dfa30 EFLAGS: 00010293
RAX: ffffffff89cadcae RBX: 0000000000000000 RCX: ffff888024be5940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88802052d190 R08: ffffffff89cad7dc R09: fffff5200067bf05
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000005
R13: 0000000000000c80 R14: 0000000000000c80 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f75a59f7678 CR3: 0000000063045000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_ibss_work+0x117a/0x1480 net/mac80211/ibss.c:1710
 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 (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/25 12:28 linux-5.15.y c16c81c81336 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in ieee80211_request_ibss_scan
2025/01/15 01:44 linux-5.15.y 4735586da88e f310a27d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in ieee80211_request_ibss_scan
2025/01/15 01:44 linux-5.15.y 4735586da88e f310a27d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in ieee80211_request_ibss_scan
2025/01/15 01:44 linux-5.15.y 4735586da88e f310a27d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in ieee80211_request_ibss_scan
2025/01/09 17:08 linux-5.15.y 4735586da88e 9220929f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in ieee80211_request_ibss_scan
* Struck through repros no longer work on HEAD.