watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:16660] Modules linked in: irq event stamp: 4595883 hardirqs last enabled at (4595882): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4595883): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4566450): [] ip_finish_output2+0x70d/0x2120 softirqs last disabled at (4566451): [] do_softirq.part.0+0xd1/0x120 CPU: 0 PID: 16660 Comm: syz-executor.3 Not tainted 6.2.0-rc4-next-20230119 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x20/0x70 Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 3d 1c ba 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 89 03 00 00 01 ff 00 74 0e 85 c9 74 35 8b 82 14 14 00 00 85 c0 74 2b 8b RSP: 0018:ffff88806ce09888 EFLAGS: 00000206 RAX: 0000000000000101 RBX: 0000000000000001 RCX: 0000000000000100 RDX: ffff888038e49ac0 RSI: ffffffff8149ebbe RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff85651e08 R15: ffff88803fd48e30 FS: 00007f463ddc6700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020010000 CR3: 000000003a77a000 CR4: 0000000000350ef0 Call Trace: __is_insn_slot_addr+0x1de/0x290 kernel_text_address+0x5b/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0xff/0x510 kfree_skbmem+0xef/0x1b0 consume_skb+0xd8/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x274/0x8ff do_softirq.part.0+0xd1/0x120 __local_bh_enable_ip+0x10a/0x130 ip_finish_output2+0x73b/0x2120 ip_do_fragment+0x1e14/0x24e0 ip_fragment.constprop.0+0x16b/0x240 __ip_finish_output.part.0+0x883/0xd10 ip_output+0x2ec/0x8e0 ip_push_pending_frames+0x30b/0x5c0 raw_sendmsg+0x120d/0x2c00 inet_sendmsg+0x121/0x150 sock_sendmsg+0x19b/0x200 ____sys_sendmsg+0x74e/0x980 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1d0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f4640850b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f463ddc6188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4640963f60 RCX: 00007f4640850b19 RDX: 0000000000000000 RSI: 0000000020000780 RDI: 0000000000000005 RBP: 00007f46408aaf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc860990cf R14: 00007f463ddc6300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 Bluetooth: hci2: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: f3 0f 1e fa endbr64 e: 65 8b 05 3d 1c ba 7e mov %gs:0x7eba1c3d(%rip),%eax # 0x7eba1c52 15: 89 c1 mov %eax,%ecx 17: 48 8b 34 24 mov (%rsp),%rsi 1b: 81 e1 00 01 00 00 and $0x100,%ecx 21: 65 48 8b 14 25 80 89 mov %gs:0x38980,%rdx 28: 03 00 * 2a: a9 00 01 ff 00 test $0xff0100,%eax <-- trapping instruction 2f: 74 0e je 0x3f 31: 85 c9 test %ecx,%ecx 33: 74 35 je 0x6a 35: 8b 82 14 14 00 00 mov 0x1414(%rdx),%eax 3b: 85 c0 test %eax,%eax 3d: 74 2b je 0x6a 3f: 8b .byte 0x8b