Hello, syzbot found the following issue on: HEAD commit: bf3e7628 Merge branch 'mtd/fixes' of git://git.kernel.org/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16d76e2a500000 kernel config: https://syzkaller.appspot.com/x/.config?x=e791ddf0875adf65 dashboard link: https://syzkaller.appspot.com/bug?extid=b7aeb9318541a1c709f1 compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project.git ca2dcbd030eadbf0aa9b660efe864ff08af6e18b) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14df611a500000 The issue was bisected to: commit dcd479e10a0510522a5d88b29b8f79ea3467d501 Author: Johannes Berg <johannes.berg@xxxxxxxxx> Date: Fri Oct 9 12:17:11 2020 +0000 mac80211: always wind down STA state bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1218ff14500000 final oops: https://syzkaller.appspot.com/x/report.txt?x=1118ff14500000 console output: https://syzkaller.appspot.com/x/log.txt?x=1618ff14500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b7aeb9318541a1c709f1@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: dcd479e10a05 ("mac80211: always wind down STA state") BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1962 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 35, name: kworker/u4:2 4 locks held by kworker/u4:2/35: #0: ffff88802af11138 ((wq_completion)phy4){+.+.}-{0:0}, at: process_one_work+0x6f4/0xfc0 kernel/workqueue.c:2245 #1: ffffc90000e0fd80 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x733/0xfc0 kernel/workqueue.c:2247 #2: ffff88802f27cd00 (&wdev->mtx){+.+.}-{3:3}, at: sdata_lock net/mac80211/ieee80211_i.h:1021 [inline] #2: ffff88802f27cd00 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_ibss_work+0x4e/0x1450 net/mac80211/ibss.c:1683 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches