------------[ cut here ]------------ intf 08:02:11:00:00:01 [link=0]: bad STA 00:00:00:ff:ff:ff bandwidth 20 MHz (0) > channel config 10 MHz (7) WARNING: drivers/net/wireless/virtual/mac80211_hwsim.c:2693 at mac80211_hwsim_sta_rc_update+0x5db/0x840 drivers/net/wireless/virtual/mac80211_hwsim.c:2693, CPU#2: kworker/u32:6/484 Modules linked in: CPU: 2 UID: 0 PID: 484 Comm: kworker/u32:6 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:mac80211_hwsim_sta_rc_update+0x5fd/0x840 drivers/net/wireless/virtual/mac80211_hwsim.c:2693 Code: 00 48 8d 3d b5 73 bf 09 48 8b 4c 24 10 48 8b 44 24 20 89 da 44 8b 89 c0 01 00 00 55 48 8d b0 72 05 00 00 41 57 44 8b 44 24 14 <67> 48 0f b9 3a 58 5a e9 3c fc ff ff e8 52 0a e2 fa e8 5d 62 6a 04 RSP: 0018:ffffc9000358f8f0 EFLAGS: 00010246 RAX: ffff888028132ad0 RBX: 0000000000000000 RCX: ffff888021494ec0 RDX: 0000000000000000 RSI: ffff888028133042 RDI: ffffffff90e66090 RBP: 0000000000000007 R08: 0000000000000014 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888021495090 R14: ffff888036053140 R15: 000000000000000a FS: 0000000000000000(0000) GS:ffff8880d6538000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb5061860c0 CR3: 000000002e3b8000 CR4: 0000000000352ef0 Call Trace: mac80211_hwsim_sta_add+0xc9/0x290 drivers/net/wireless/virtual/mac80211_hwsim.c:2713 drv_sta_add net/mac80211/driver-ops.h:470 [inline] drv_sta_state+0x887/0x1960 net/mac80211/driver-ops.c:155 sta_info_insert_drv_state net/mac80211/sta_info.c:836 [inline] sta_info_insert_finish net/mac80211/sta_info.c:944 [inline] sta_info_insert_rcu+0x170b/0x2fa0 net/mac80211/sta_info.c:1021 ieee80211_ocb_finish_sta net/mac80211/ocb.c:105 [inline] ieee80211_ocb_work+0x34d/0x650 net/mac80211/ocb.c:139 ieee80211_iface_work+0x431/0x13d0 net/mac80211/iface.c:1832 cfg80211_wiphy_work+0x446/0x5c0 net/wireless/core.c:440 process_one_work+0xa23/0x19a0 kernel/workqueue.c:3276 process_scheduled_works kernel/workqueue.c:3359 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3440 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess): 0: 00 48 8d add %cl,-0x73(%rax) 3: 3d b5 73 bf 09 cmp $0x9bf73b5,%eax 8: 48 8b 4c 24 10 mov 0x10(%rsp),%rcx d: 48 8b 44 24 20 mov 0x20(%rsp),%rax 12: 89 da mov %ebx,%edx 14: 44 8b 89 c0 01 00 00 mov 0x1c0(%rcx),%r9d 1b: 55 push %rbp 1c: 48 8d b0 72 05 00 00 lea 0x572(%rax),%rsi 23: 41 57 push %r15 25: 44 8b 44 24 14 mov 0x14(%rsp),%r8d * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 58 pop %rax 30: 5a pop %rdx 31: e9 3c fc ff ff jmp 0xfffffc72 36: e8 52 0a e2 fa call 0xfae20a8d 3b: e8 5d 62 6a 04 call 0x46a629d