------------[ cut here ]------------ WARNING: CPU: 0 PID: 7 at net/mac80211/sta_info.c:530 sta_info_insert_check net/mac80211/sta_info.c:529 [inline] WARNING: CPU: 0 PID: 7 at net/mac80211/sta_info.c:530 sta_info_insert_rcu+0x7d/0xde0 net/mac80211/sta_info.c:707 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 5.9.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy4 ieee80211_iface_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xa3/0xc8 lib/dump_stack.c:118 panic+0x16e/0x353 kernel/panic.c:231 __warn.cold.13+0x20/0x20 kernel/panic.c:600 report_bug+0xc0/0xf0 lib/bug.c:198 handle_bug+0x35/0x90 arch/x86/kernel/traps.c:235 exc_invalid_op+0x13/0x60 arch/x86/kernel/traps.c:255 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:sta_info_insert_check net/mac80211/sta_info.c:529 [inline] RIP: 0010:sta_info_insert_rcu+0x7d/0xde0 net/mac80211/sta_info.c:707 Code: 8b 93 84 0c 00 00 0f b7 83 88 0c 00 00 41 8b 8d c0 14 00 00 66 41 33 85 c4 14 00 00 31 d1 0f b7 c0 09 c8 74 05 83 e2 01 74 69 <0f> 0b 41 be ea ff ff ff 4c 89 ff e8 e3 51 2f 00 e8 2e ad 2a fe 68 RSP: 0018:ffffc90000ca3cf8 EFLAGS: 00010202 RAX: 00000000b4d07db5 RBX: ffff88811ccc9000 RCX: 00000000b4d05d35 RDX: 0000000000000001 RSI: ffffffff8409d857 RDI: 0000000000000000 RBP: ffffc90000ca3d78 R08: ffffffff82fc76e0 R09: 0000000000000000 R10: ffffc90000ca3cf8 R11: 0000000000000001 R12: ffff88811cd30c80 R13: ffff88811cd74c00 R14: dead000000000100 R15: ffff88811cd314e0 ieee80211_ibss_finish_sta+0x9e/0x120 net/mac80211/ibss.c:592 ieee80211_ibss_work+0x10a/0x420 net/mac80211/ibss.c:1700 process_one_work+0x273/0x600 kernel/workqueue.c:2269 worker_thread+0x38/0x380 kernel/workqueue.c:2415 kthread+0x148/0x170 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 Kernel Offset: disabled Rebooting in 86400 seconds..