syzbot


WARNING in ieee80211_free_ack_frame (2)
Status: upstream: reported on 2021/11/15 07:38
Reported-by: syzbot+ac648b0525be1feba506@syzkaller.appspotmail.com
First crash: 196d, last: 84d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in ieee80211_free_ack_frame syz error 76 56d 596d 0/1 upstream: reported syz repro on 2020/10/07 07:47
upstream WARNING in ieee80211_free_ack_frame syz done 117 202d 596d 22/22 fixed on 2021/11/10 00:50

Sample crash report:
WARNING: CPU: 1 PID: 18556 at net/mac80211/main.c:1416 ieee80211_free_ack_frame+0x4a/0x50 net/mac80211/main.c:1416
Modules linked in:
CPU: 1 PID: 18556 Comm: kworker/u4:29 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:ieee80211_free_ack_frame+0x4a/0x50 net/mac80211/main.c:1416
Code: 91 e4 f8 48 89 ef 31 f6 e8 e3 1a 95 fe 31 c0 5b 5d c3 e8 19 91 e4 f8 48 c7 c7 a0 6f ce 8a c6 05 8e be eb 04 01 e8 f0 24 73 00 <0f> 0b eb d0 66 90 41 57 41 56 49 89 f6 41 55 41 54 49 89 d4 55 48
RSP: 0018:ffffc90010c179d8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff8880781f9d00 RSI: ffffffff815f1498 RDI: fffff52002182f2d
RBP: ffff88807c2c9780 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815eb1fe R11: 0000000000000000 R12: dffffc0000000000
R13: ffffffff88933980 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff8dfa1d9b0 CR3: 000000007d558000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 idr_for_each+0x113/0x220 lib/idr.c:208
 ieee80211_free_hw+0x9b/0x2b0 net/mac80211/main.c:1432
 mac80211_hwsim_del_radio drivers/net/wireless/mac80211_hwsim.c:3586 [inline]
 hwsim_exit_net+0x55f/0xca0 drivers/net/wireless/mac80211_hwsim.c:4346
 ops_exit_list+0xb0/0x160 net/core/net_namespace.c:168
 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:595
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2022/01/15 23:11 upstream a33f5c380c4b 723cfaf0 .config log report info WARNING in ieee80211_free_ack_frame
ci-upstream-kasan-gce-smack-root 2022/01/14 05:02 upstream 455e73a07f6e b8d780ab .config log report info WARNING in ieee80211_free_ack_frame
ci-upstream-kasan-gce-smack-root 2022/01/09 18:11 upstream 4634129ad9fd 2ca0d385 .config log report info WARNING in ieee80211_free_ack_frame
ci-upstream-kasan-gce-selinux-root 2021/12/11 05:11 upstream b8a98b6bf66a 49ca1f59 .config log report info WARNING in ieee80211_free_ack_frame
ci-upstream-kasan-gce-selinux-root 2021/11/11 07:31 upstream 89d714ab6043 75b04091 .config log report info WARNING in ieee80211_free_ack_frame
ci-upstream-net-this-kasan-gce 2022/01/19 15:42 net 99845220d3c3 0620189b .config log report info WARNING in ieee80211_free_ack_frame
ci-upstream-net-this-kasan-gce 2022/01/18 03:55 net 9ea674d7ca4f 731a2d23 .config log report info WARNING in ieee80211_free_ack_frame
ci-upstream-net-kasan-gce 2022/03/04 00:05 net-next 80901bff8129 45a13a73 .config log report info WARNING in ieee80211_free_ack_frame