Oops: divide error: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 4157 Comm: kworker/u8:8 Not tainted 6.16.0-rc5-syzkaller-00038-g733923397fd9 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:mac80211_hwsim_link_info_changed+0x460/0xd80 drivers/net/wireless/virtual/mac80211_hwsim.c:2555
Code: c6 48 8b 7c 24 18 48 8b 5c 24 38 74 0a e8 e8 e5 2f fb 48 8b 7c 24 18 48 8b 0f 89 ce 4c 89 e0 48 c1 e8 20 74 5a 4c 89 e0 31 d2 <48> f7 f6 eb 57 e8 16 63 cc fa 48 8b 5c 24 18 48 8d 7b 10 e8 e8 8e
RSP: 0018:ffffc9000d927860 EFLAGS: 00010246
RAX: 00063984f4e09acd RBX: ffff88806cb0f048 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88806cb0f040
RBP: ffffc9000d927948 R08: ffffffff8fa1eff7 R09: 1ffffffff1f43dfe
R10: dffffc0000000000 R11: ffffffff8167a460 R12: 00063984f4e09acd
R13: ffff88806cb0efc8 R14: dffffc0000000000 R15: 0000000000000200
FS: 0000000000000000(0000) GS:ffff888125d1b000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000801f5018 CR3: 00000000687a2000 CR4: 00000000003526f0
Call Trace:
<TASK>
drv_link_info_changed+0x51b/0x870 net/mac80211/driver-ops.c:-1
ieee80211_offchannel_return+0x375/0x500 net/mac80211/offchannel.c:160
__ieee80211_roc_work+0x265/0x320 net/mac80211/offchannel.c:480
cfg80211_wiphy_work+0x2df/0x460 net/wireless/core.c:435
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
kthread+0x70e/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148
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+0x460/0xd80 drivers/net/wireless/virtual/mac80211_hwsim.c:2555
Code: c6 48 8b 7c 24 18 48 8b 5c 24 38 74 0a e8 e8 e5 2f fb 48 8b 7c 24 18 48 8b 0f 89 ce 4c 89 e0 48 c1 e8 20 74 5a 4c 89 e0 31 d2 <48> f7 f6 eb 57 e8 16 63 cc fa 48 8b 5c 24 18 48 8d 7b 10 e8 e8 8e
RSP: 0018:ffffc9000d927860 EFLAGS: 00010246
RAX: 00063984f4e09acd RBX: ffff88806cb0f048 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88806cb0f040
RBP: ffffc9000d927948 R08: ffffffff8fa1eff7 R09: 1ffffffff1f43dfe
R10: dffffc0000000000 R11: ffffffff8167a460 R12: 00063984f4e09acd
R13: ffff88806cb0efc8 R14: dffffc0000000000 R15: 0000000000000200
FS: 0000000000000000(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000080e80000 CR3: 000000005a4f6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000097 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 48 8b 7c 24 18 mov 0x18(%rsp),%rdi
5: 48 8b 5c 24 38 mov 0x38(%rsp),%rbx
a: 74 0a je 0x16
c: e8 e8 e5 2f fb call 0xfb2fe5f9
11: 48 8b 7c 24 18 mov 0x18(%rsp),%rdi
16: 48 8b 0f mov (%rdi),%rcx
19: 89 ce mov %ecx,%esi
1b: 4c 89 e0 mov %r12,%rax
1e: 48 c1 e8 20 shr $0x20,%rax
22: 74 5a je 0x7e
24: 4c 89 e0 mov %r12,%rax
27: 31 d2 xor %edx,%edx
* 29: 48 f7 f6 div %rsi <-- trapping instruction
2c: eb 57 jmp 0x85
2e: e8 16 63 cc fa call 0xfacc6349
33: 48 8b 5c 24 18 mov 0x18(%rsp),%rbx
38: 48 8d 7b 10 lea 0x10(%rbx),%rdi
3c: e8 .byte 0xe8
3d: e8 .byte 0xe8
3e: 8e .byte 0x8e