bisecting fixing commit since a38fd8748464831584a19438cbb3082b5a2dab15
building syzkaller on e4b4d570a88c0d2e0420c6e21fc20d90564636b1
testing commit a38fd8748464831584a19438cbb3082b5a2dab15 with gcc (GCC) 10.2.1 20210217
kernel signature: 591e2487f2803c55fedb6b121f8499cf161f00a62fec96d0564236b99eb47d8c
all runs: crashed: WARNING in ieee80211_start_next_roc
testing current HEAD 0a50438c84363bd37fe18fe432888ae9a074dcab
testing commit 0a50438c84363bd37fe18fe432888ae9a074dcab with gcc (GCC) 10.2.1 20210217
kernel signature: 9feff9d324585cebb86156a211755af3c3cef603265439481e5fc2f2a52b62ee
all runs: crashed: WARNING in ieee80211_start_next_roc
revisions tested: 2, total time: 20m58.792310912s (build: 13m40.080118615s, test: 6m40.627151148s)
the crash still happens on HEAD
commit msg: Merge branch 'for-5.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
crash: WARNING in ieee80211_start_next_roc
------------[ cut here ]------------
WARNING: CPU: 1 PID: 482 at net/mac80211/offchannel.c:401 ieee80211_start_next_roc+0x13d/0x1d0 net/mac80211/offchannel.c:405
Modules linked in:
CPU: 1 PID: 482 Comm: kworker/u4:7 Not tainted 5.12.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy6 ieee80211_scan_work
RIP: 0010:ieee80211_start_next_roc+0x13d/0x1d0 net/mac80211/offchannel.c:401
Code: bb b8 01 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 9d 00 00 00 48 83 bb b8 01 00 00 00 74 2f 5b 48 89 ef 5d e9 53 ee ff ff <0f> 0b 5b 5d c3 48 8d bd 28 1b 00 00 be ff ff ff ff e8 dd 09 9d 00
RSP: 0018:ffffc9000296fbe0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff88801f8b5980 RCX: 0000000000000001
RDX: 1ffff11003f16b34 RSI: ffffffff888ae600 RDI: ffff88801f8b59a0
RBP: ffff88801bf50d00 R08: 0000000000000001 R09: ffffffff8e19f93f
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88801bf52850
R13: ffff88801bf529f0 R14: ffff88801bf527c0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000543038 CR3: 0000000027fc2000 CR4: 0000000000350ee0
Call Trace:
 ieee80211_scan_work+0x316/0x16c0 net/mac80211/scan.c:1119
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294