watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.3:10258] Modules linked in: irq event stamp: 4080147 hardirqs last enabled at (4080146): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4080147): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4036254): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (4036257): [] __irq_exit_rcu+0xcc/0x110 CPU: 0 PID: 10258 Comm: syz-executor.3 Not tainted 6.2.0-rc8-next-20230217 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x7e/0x170 Code: 0f 8e ad 00 00 00 31 c0 3b 6b 08 0f 83 81 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 0c 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 98 00 00 00 8b RSP: 0018:ffff88806ce09630 EFLAGS: 00000217 RAX: dffffc0000000000 RBX: ffff88806ce09718 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff813b934c RDI: ffff88806ce09724 RBP: 0000000000000010 R08: 0000000000000001 R09: ffff88806ce09690 R10: 0000000000038001 R11: 0000000000000001 R12: ffff88806ce09718 R13: 0000000000000000 R14: ffff88800f115040 R15: 0000000000092820 FS: 00007f0a4a9b1700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555b5bc58 CR3: 0000000043e92000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x320 __create_object+0x3c/0xc90 kmem_cache_alloc_node+0x215/0x330 kmalloc_reserve+0x16d/0x230 __alloc_skb+0x129/0x330 __netdev_alloc_skb+0x72/0x370 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d3/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x107/0x1b0 Code: 39 45 28 75 5e 48 c7 45 28 00 00 00 00 48 c7 c6 62 76 7f 81 48 89 ef e8 37 de ad ff 48 85 db 74 06 e8 cd 27 d3 ff fb 4d 85 f6 <74> 1e 5b 4c 89 f6 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 92 fa ff RSP: 0018:ffff8880457ff7e0 EFLAGS: 00000246 RAX: 00000000003b3979 RBX: 0000000000000200 RCX: ffffffff812cb1df RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff817f7683 RBP: ffff88806ce3dca0 R08: 0000000000000001 R09: ffffffff8777896f R10: fffffbfff0eef12d R11: 0000000000000001 R12: ffff88800844f780 R13: ffffea00003b5900 R14: 0000000000000000 R15: 0000000000000006 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x320 vm_area_dup+0x20/0xa0 dup_mmap+0x5d1/0x1120 copy_process+0x3b05/0x7390 kernel_clone+0xeb/0x8c0 __do_sys_clone3+0x1d5/0x2e0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f0a4d43bb19 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:00007f0a4a9b1188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f0a4d54ef60 RCX: 00007f0a4d43bb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000200003c0 RBP: 00007f0a4d495f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca2c979df R14: 00007f0a4a9b1300 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: 0f 8e ad 00 00 00 jle 0xb3 6: 31 c0 xor %eax,%eax 8: 3b 6b 08 cmp 0x8(%rbx),%ebp b: 0f 83 81 00 00 00 jae 0x92 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 48 8d 7b 0c lea 0xc(%rbx),%rdi 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx * 2a: 48 89 f8 mov %rdi,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 08 jl 0x3f 37: 84 d2 test %dl,%dl 39: 0f 85 98 00 00 00 jne 0xd7 3f: 8b .byte 0x8b