watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.5:19693] Modules linked in: irq event stamp: 273661 hardirqs last enabled at (273660): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (273661): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (273532): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (273561): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 19693 Comm: syz-executor.5 Not tainted 6.4.0-rc6-next-20230616 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xb04/0x2490 Code: 03 80 3c 02 00 0f 85 c0 14 00 00 4c 89 e2 4d 89 77 48 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 80 14 00 00 <49> 8d 7f 68 49 c7 47 60 00 00 00 00 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffff88806ce096c8 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff863b01b0 RDX: 1ffff1100d9c12f3 RSI: 1ffff1100d9c12f2 RDI: 1ffff1100d9c12f2 RBP: ffff88806ce09790 R08: ffffffff863b01b4 R09: ffff88806ce09778 R10: 0000000000038001 R11: 000000000008a89b R12: ffff88806ce09798 R13: ffff88806ce09780 R14: ffff88800da17878 R15: ffff88806ce09738 FS: 00007f42d1e78700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020065000 CR3: 0000000041986000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_node+0x198/0x3b0 __alloc_skb+0x28c/0x330 __netdev_alloc_skb+0x72/0x370 __ieee80211_beacon_get+0x3f6/0xfc0 ieee80211_beacon_get_tim+0xa1/0x550 mac80211_hwsim_beacon_tx+0x402/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x8/0x20 Code: 00 00 00 e9 2a fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <48> 89 f2 48 89 fe bf 07 00 00 00 e9 f8 fd ff ff 0f 1f 84 00 00 00 RSP: 0018:ffff88800da17320 EFLAGS: 00000246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffffff83c35e92 RDX: 0000000000040000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff88804632c140 R15: 0000000000000001 __ip6_append_data.isra.0+0xb22/0x4560 ip6_append_data+0x1d4/0x530 rawv6_sendmsg+0x156e/0x3dc0 inet_sendmsg+0x121/0x150 sock_sendmsg+0x19b/0x200 splice_to_socket+0x949/0xe10 direct_splice_actor+0x119/0x180 splice_direct_to_actor+0x349/0x9d0 do_splice_direct+0x1bb/0x290 do_sendfile+0xb6b/0x1370 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f42d4923b19 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:00007f42d1e78188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f42d4a37020 RCX: 00007f42d4923b19 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000006 RBP: 00007f42d497df6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000001a000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6ea259ef R14: 00007f42d1e78300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 Bluetooth: hci3: command 0x0406 tx timeout ---------------- Code disassembly (best guess): 0: 03 80 3c 02 00 0f add 0xf00023c(%rax),%eax 6: 85 c0 test %eax,%eax 8: 14 00 adc $0x0,%al a: 00 4c 89 e2 add %cl,-0x1e(%rcx,%rcx,4) e: 4d 89 77 48 mov %r14,0x48(%r15) 12: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 19: fc ff df 1c: 48 c1 ea 03 shr $0x3,%rdx 20: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 24: 0f 85 80 14 00 00 jne 0x14aa * 2a: 49 8d 7f 68 lea 0x68(%r15),%rdi <-- trapping instruction 2e: 49 c7 47 60 00 00 00 movq $0x0,0x60(%r15) 35: 00 36: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 3d: fc ff df