divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:ath9k_htc_choose_bslot drivers/net/wireless/ath/ath9k/htc_drv_beacon.c:277 [inline] RIP: 0010:ath9k_htc_swba+0x1b4/0xc60 drivers/net/wireless/ath/ath9k/htc_drv_beacon.c:310 Code: 95 c0 40 84 c6 0f 85 99 09 00 00 48 8b 13 0f b7 c9 bb 01 00 00 00 48 0f ca 48 89 d0 c1 ea 0a 48 c1 e8 20 c1 e0 16 09 d0 31 d2 f1 8d 04 12 31 d2 f7 f1 29 c3 49 8d 86 b0 03 00 00 48 89 c7 48 RSP: 0018:ffffc90000147ca0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88807d031160 R14: ffff88807c5b33a0 R15: ffff88807d0311f0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcf9bc0000 CR3: 0000000026099000 CR4: 0000000000350ef0 Call Trace: ath9k_wmi_event_tasklet+0x33e/0x450 drivers/net/wireless/ath/ath9k/wmi.c:165 tasklet_action_common.constprop.0+0x201/0x2e0 kernel/softirq.c:797 __do_softirq+0x2e3/0xae3 kernel/softirq.c:571 run_ksoftirqd kernel/softirq.c:934 [inline] run_ksoftirqd+0x31/0x60 kernel/softirq.c:926 smpboot_thread_fn+0x659/0xa20 kernel/smpboot.c:164 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ath9k_htc_choose_bslot drivers/net/wireless/ath/ath9k/htc_drv_beacon.c:277 [inline] RIP: 0010:ath9k_htc_swba+0x1b4/0xc60 drivers/net/wireless/ath/ath9k/htc_drv_beacon.c:310 Code: 95 c0 40 84 c6 0f 85 99 09 00 00 48 8b 13 0f b7 c9 bb 01 00 00 00 48 0f ca 48 89 d0 c1 ea 0a 48 c1 e8 20 c1 e0 16 09 d0 31 d2 f1 8d 04 12 31 d2 f7 f1 29 c3 49 8d 86 b0 03 00 00 48 89 c7 48 RSP: 0018:ffffc90000147ca0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88807d031160 R14: ffff88807c5b33a0 R15: ffff88807d0311f0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcf9bc0000 CR3: 0000000026099000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 95 xchg %eax,%ebp 1: c0 40 84 c6 rolb $0xc6,-0x7c(%rax) 5: 0f 85 99 09 00 00 jne 0x9a4 b: 48 8b 13 mov (%rbx),%rdx e: 0f b7 c9 movzwl %cx,%ecx 11: bb 01 00 00 00 mov $0x1,%ebx 16: 48 0f ca bswap %rdx 19: 48 89 d0 mov %rdx,%rax 1c: c1 ea 0a shr $0xa,%edx 1f: 48 c1 e8 20 shr $0x20,%rax 23: c1 e0 16 shl $0x16,%eax 26: 09 d0 or %edx,%eax 28: 31 d2 xor %edx,%edx * 2a: f7 f1 div %ecx <-- trapping instruction 2c: 8d 04 12 lea (%rdx,%rdx,1),%eax 2f: 31 d2 xor %edx,%edx 31: f7 f1 div %ecx 33: 29 c3 sub %eax,%ebx 35: 49 8d 86 b0 03 00 00 lea 0x3b0(%r14),%rax 3c: 48 89 c7 mov %rax,%rdi 3f: 48 rex.W