------------[ cut here ]------------ WARNING: CPU: 0 PID: 75 at net/wireless/ibss.c:36 __cfg80211_ibss_joined+0x487/0x520 net/wireless/ibss.c:36 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 75 Comm: kworker/u4:3 Not tainted 5.9.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: cfg80211 cfg80211_event_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 panic+0x382/0x7fb kernel/panic.c:231 __warn.cold+0x20/0x4b kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:__cfg80211_ibss_joined+0x487/0x520 net/wireless/ibss.c:36 Code: 0f 0b e9 0c fe ff ff e8 77 54 06 fa e9 41 fc ff ff e8 4d 54 06 fa e9 7d fc ff ff e8 63 54 06 fa e9 0d ff ff ff e8 e9 84 c5 f9 <0f> 0b e9 7e fc ff ff e8 dd 84 c5 f9 0f 0b e8 56 54 06 fa e9 e4 fb RSP: 0018:ffffc90001047bc8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88805b19cc10 RCX: ffffffff815b7ea2 RDX: ffff8880a939e100 RSI: ffffffff87b0b957 RDI: 0000000000000000 RBP: ffff88805b19c000 R08: 0000000000000001 R09: ffffffff8d0b7a3f R10: fffffbfff1a16f47 R11: 0000000000000000 R12: 1ffff92000208f7b R13: ffff88809a667718 R14: 0000000000000000 R15: 0000000000000006 cfg80211_process_wdev_events+0x3de/0x5b0 net/wireless/util.c:910 cfg80211_process_rdev_events+0x6e/0x100 net/wireless/util.c:936 cfg80211_event_work+0x1a/0x20 net/wireless/core.c:320 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Kernel Offset: disabled Rebooting in 86400 seconds..