watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.7:43095] Modules linked in: irq event stamp: 5983323 hardirqs last enabled at (5983322): [] asm_sysvec_irq_work+0x1a/0x20 hardirqs last disabled at (5983323): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5967692): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (5967695): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 43095 Comm: syz-executor.7 Not tainted 6.4.0-rc4-next-20230602 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x171f/0x2480 Code: 00 0f 85 e4 0b 00 00 49 8d 7f 10 49 8b 6f 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b7 0b 00 00 <49> 8b 47 10 48 39 dd 0f 87 07 f7 ff ff 48 39 d8 0f 86 fe f6 ff ff RSP: 0018:ffff88806ce095f0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88804b2ef630 RCX: 0000000000000001 RDX: 1ffff1100d9c12ce RSI: 0000000000000000 RDI: ffff88806ce09670 RBP: ffff88804b2e8000 R08: ffffffff864b8968 R09: ffffffff864b896c R10: 0000000000038001 R11: 00000000000b6bed R12: ffff88804b2ef588 R13: ffff88806ce096a8 R14: ffff88804b2ef588 R15: ffff88806ce09660 FS: 00007f3a5dbbb700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd5a7f48f0 CR3: 000000004da98000 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+0x172/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc_node+0x229/0x3a0 kmalloc_reserve+0x169/0x270 __alloc_skb+0x129/0x330 __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:__unfreeze_partials+0x29/0x150 Code: 90 48 85 f6 0f 84 3f 01 00 00 41 57 49 89 f7 41 56 45 31 f6 41 55 45 31 ed 41 54 55 48 89 fd 31 ff 53 48 83 ec 48 49 8b 47 10 <48> 89 04 24 49 8b 07 48 c1 e8 3a 4c 8b a4 c5 d0 00 00 00 4c 39 e7 RSP: 0018:ffff88804b2ef630 EFLAGS: 00000286 RAX: ffffea00003c69c0 RBX: ffff88800e439130 RCX: ffffffff812cdfff RDX: 0000000000000000 RSI: ffffea0001089940 RDI: 0000000000000000 RBP: ffff88800844f780 R08: 0000000000000001 R09: fffffbfff0ef5565 R10: ffffffff877aab2f R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffea0001089940 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_lru+0x217/0x600 __d_alloc+0x31/0x9c0 d_alloc_parallel+0x10e/0x1640 lookup_open.isra.0+0x912/0x1400 path_openat+0x97c/0x2750 do_filp_open+0x1ba/0x410 do_sys_openat2+0x171/0x4c0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f3a60645b19 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:00007f3a5dbbb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f3a60758f60 RCX: 00007f3a60645b19 RDX: 0000000000101042 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007f3a6069ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd871224ef R14: 00007f3a5dbbb300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 00 0f add %cl,(%rdi) 2: 85 e4 test %esp,%esp 4: 0b 00 or (%rax),%eax 6: 00 49 8d add %cl,-0x73(%rcx) 9: 7f 10 jg 0x1b b: 49 8b 6f 08 mov 0x8(%r15),%rbp f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 16: fc ff df 19: 48 89 fa mov %rdi,%rdx 1c: 48 c1 ea 03 shr $0x3,%rdx 20: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 24: 0f 85 b7 0b 00 00 jne 0xbe1 * 2a: 49 8b 47 10 mov 0x10(%r15),%rax <-- trapping instruction 2e: 48 39 dd cmp %rbx,%rbp 31: 0f 87 07 f7 ff ff ja 0xfffff73e 37: 48 39 d8 cmp %rbx,%rax 3a: 0f 86 fe f6 ff ff jbe 0xfffff73e