tipc: Left network mode ------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x0 WARNING: net/mac80211/driver-ops.c:366 at 0x0, CPU#3: kworker/u32:64/12144 Modules linked in: CPU: 3 UID: 0 PID: 12144 Comm: kworker/u32:64 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:drv_unassign_vif_chanctx+0x204/0x7f0 net/mac80211/driver-ops.c:366 Code: b2 ed f1 f6 48 8b 74 24 10 48 81 c6 20 01 00 00 48 89 74 24 10 e8 9c ed f1 f6 48 8d 3d 45 26 c9 05 8b 54 24 04 48 8b 74 24 10 <67> 48 0f b9 3a e8 82 ed f1 f6 4c 89 f2 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc90023def538 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88802a22cd80 RCX: ffffffff8acbf231 RDX: 0000000000000000 RSI: ffff88802a22c120 RDI: ffffffff909518e0 RBP: ffff888055360e80 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 000000004673ca3a R12: ffff88802a22ead8 R13: 0000000000000000 R14: ffff88802a22d7b8 R15: ffff88802a22ea80 FS: 0000000000000000(0000) GS:ffff8880d6c9c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5a575156c0 CR3: 0000000063c08000 CR4: 0000000000352ef0 Call Trace: ieee80211_assign_link_chanctx+0x3f1/0xf00 net/mac80211/chan.c:905 __ieee80211_link_release_channel+0x273/0x4b0 net/mac80211/chan.c:1879 ieee80211_link_release_channel+0x128/0x200 net/mac80211/chan.c:2154 unregister_netdevice_many_notify+0x13f8/0x2570 net/core/dev.c:12305 unregister_netdevice_many net/core/dev.c:12347 [inline] unregister_netdevice_queue net/core/dev.c:12161 [inline] unregister_netdevice_queue+0x305/0x3c0 net/core/dev.c:12151 unregister_netdevice include/linux/netdevice.h:3389 [inline] _cfg80211_unregister_wdev+0x64b/0x800 net/wireless/core.c:1284 ieee80211_remove_interfaces+0x34e/0x700 net/mac80211/iface.c:2394 ieee80211_unregister_hw+0x55/0x3a0 net/mac80211/main.c:1681 mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5915 [inline] hwsim_exit_net+0x788/0x1590 drivers/net/wireless/virtual/mac80211_hwsim.c:6806 ops_exit_list net/core/net_namespace.c:199 [inline] ops_undo_list+0x2ee/0xab0 net/core/net_namespace.c:252 cleanup_net+0x41b/0x830 net/core/net_namespace.c:695 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- Code disassembly (best guess): 0: b2 ed mov $0xed,%dl 2: f1 int1 3: f6 48 8b 74 testb $0x74,-0x75(%rax) 7: 24 10 and $0x10,%al 9: 48 81 c6 20 01 00 00 add $0x120,%rsi 10: 48 89 74 24 10 mov %rsi,0x10(%rsp) 15: e8 9c ed f1 f6 call 0xf6f1edb6 1a: 48 8d 3d 45 26 c9 05 lea 0x5c92645(%rip),%rdi # 0x5c92666 21: 8b 54 24 04 mov 0x4(%rsp),%edx 25: 48 8b 74 24 10 mov 0x10(%rsp),%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e8 82 ed f1 f6 call 0xf6f1edb6 34: 4c 89 f2 mov %r14,%rdx 37: 48 rex.W 38: b8 00 00 00 00 mov $0x0,%eax 3d: 00 fc add %bh,%ah 3f: ff .byte 0xff