Oops: divide error: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 193 Comm: kworker/u8:6 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:mac80211_hwsim_link_info_changed+0x476/0xfc0 drivers/net/wireless/virtual/mac80211_hwsim.c:2734
Code: 3c 06 00 49 89 c6 48 8b 7c 24 20 74 0a e8 42 72 26 fb 48 8b 7c 24 20 48 8b 0f 89 ce 4c 89 e0 48 c1 e8 20 74 60 4c 89 e0 31 d2 <48> f7 f6 eb 5d e8 30 37 bb fa 4c 8b 74 24 20 49 8d 7e 10 e8 a2 e4
RSP: 0000:ffffc90002ea7860 EFLAGS: 00010246
RAX: 000650757bb12572 RBX: 0000000000000200 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88806fbe7b98
RBP: ffffc90002ea7958 R08: ffffffff903096f7 R09: 1ffffffff20612de
R10: dffffc0000000000 R11: fffffbfff20612df R12: 000650757bb12572
R13: ffff88806fbe7b18 R14: dffffc0000000000 R15: 1ffff920005d4f18
FS: 0000000000000000(0000) GS:ffff888125393000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f540c000 CR3: 0000000064b3a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
drv_link_info_changed+0x505/0x880 net/mac80211/driver-ops.c:-1
ieee80211_offchannel_return+0x375/0x500 net/mac80211/offchannel.c:160
__ieee80211_scan_completed+0x75a/0xb40 net/mac80211/scan.c:519
cfg80211_wiphy_work+0x2cf/0x460 net/wireless/core.c:513
process_one_work kernel/workqueue.c:3302 [inline]
process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:mac80211_hwsim_link_info_changed+0x476/0xfc0 drivers/net/wireless/virtual/mac80211_hwsim.c:2734
Code: 3c 06 00 49 89 c6 48 8b 7c 24 20 74 0a e8 42 72 26 fb 48 8b 7c 24 20 48 8b 0f 89 ce 4c 89 e0 48 c1 e8 20 74 60 4c 89 e0 31 d2 <48> f7 f6 eb 5d e8 30 37 bb fa 4c 8b 74 24 20 49 8d 7e 10 e8 a2 e4
RSP: 0000:ffffc90002ea7860 EFLAGS: 00010246
RAX: 000650757bb12572 RBX: 0000000000000200 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88806fbe7b98
RBP: ffffc90002ea7958 R08: ffffffff903096f7 R09: 1ffffffff20612de
R10: dffffc0000000000 R11: fffffbfff20612df R12: 000650757bb12572
R13: ffff88806fbe7b18 R14: dffffc0000000000 R15: 1ffff920005d4f18
FS: 0000000000000000(0000) GS:ffff888125393000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f7487a54 CR3: 00000000608c4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 3 bytes skipped:
0: 49 89 c6 mov %rax,%r14
3: 48 8b 7c 24 20 mov 0x20(%rsp),%rdi
8: 74 0a je 0x14
a: e8 42 72 26 fb call 0xfb267251
f: 48 8b 7c 24 20 mov 0x20(%rsp),%rdi
14: 48 8b 0f mov (%rdi),%rcx
17: 89 ce mov %ecx,%esi
19: 4c 89 e0 mov %r12,%rax
1c: 48 c1 e8 20 shr $0x20,%rax
20: 74 60 je 0x82
22: 4c 89 e0 mov %r12,%rax
25: 31 d2 xor %edx,%edx
* 27: 48 f7 f6 div %rsi <-- trapping instruction
2a: eb 5d jmp 0x89
2c: e8 30 37 bb fa call 0xfabb3761
31: 4c 8b 74 24 20 mov 0x20(%rsp),%r14
36: 49 8d 7e 10 lea 0x10(%r14),%rdi
3a: e8 .byte 0xe8
3b: a2 .byte 0xa2
3c: e4 .byte 0xe4