watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.3:5777] Modules linked in: irq event stamp: 6450157 hardirqs last enabled at (6450156): [] asm_sysvec_irq_work+0x12/0x20 hardirqs last disabled at (6450157): [] sysvec_apic_timer_interrupt+0xb/0xc0 softirqs last enabled at (6447146): [] __irq_exit_rcu+0x113/0x170 softirqs last disabled at (6447181): [] __irq_exit_rcu+0x113/0x170 CPU: 0 PID: 5777 Comm: syz-executor.3 Not tainted 5.18.0-rc1-next-20220407 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:unwind_get_return_address+0x6a/0x90 Code: ea 03 80 3c 02 00 75 32 48 8b 7b 58 e8 cf 83 0b 00 85 c0 74 d3 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 <75> 18 48 8b 43 58 5b 5d c3 e8 18 f4 65 00 eb a8 48 89 ef e8 1e f4 RSP: 0018:ffff88806ce09790 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806ce097a8 RCX: 0000000000000000 RDX: 1ffff1100d9c1300 RSI: ffff8880408bf860 RDI: ffffffff81849e73 RBP: ffff88806ce09800 R08: ffffffff85ca2aac R09: ffffffff85ca2ab0 R10: ffffed100d9c1302 R11: 000000000003403b R12: ffff88806ce09870 R13: 0000000000000000 R14: ffff888041289ac0 R15: 0000000000000000 FS: 00007fbbc099b700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c549c81648 CR3: 000000001cfd2000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x99/0xf0 stack_trace_save+0x8c/0xc0 kasan_save_stack+0x1e/0x40 __kasan_slab_alloc+0x66/0x80 kmem_cache_alloc_node+0x1b9/0x490 __alloc_skb+0x211/0x340 __netdev_alloc_skb+0x73/0x3d0 __ieee80211_beacon_get+0x350/0x11e0 ieee80211_beacon_get_tim+0x8f/0x8f0 mac80211_hwsim_beacon_tx+0x111/0x8f0 __iterate_interfaces+0x1f0/0x570 ieee80211_iterate_active_interfaces_atomic+0x70/0x180 mac80211_hwsim_beacon+0xcd/0x1c0 __hrtimer_run_queues+0x5e8/0xbd0 hrtimer_run_softirq+0x172/0x340 __do_softirq+0x270/0x8c7 __irq_exit_rcu+0x113/0x170 irq_exit_rcu+0x5/0x20 sysvec_apic_timer_interrupt+0x8e/0xc0 asm_sysvec_apic_timer_interrupt+0x12/0x20 RIP: 0010:put_cpu_partial+0x115/0x1b0 Code: 39 43 28 75 5d 48 c7 43 28 00 00 00 00 48 c7 c6 50 a4 76 81 48 89 df e8 69 57 b2 ff 48 85 ed 74 06 e8 6f 37 d4 ff fb 4d 85 ed <74> 21 5b 4c 89 ee 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 84 fd ff RSP: 0018:ffff8880408bf6e8 EFLAGS: 00000246 RAX: 000000000062604b RBX: ffff88806ce3c3a0 RCX: ffffffff81285bbf RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000200 R08: 0000000000000001 R09: ffffffff86a4175f R10: fffffbfff0d482eb R11: 0000000000000001 R12: ffff88800784f780 R13: 0000000000000000 R14: ffffea000035ef80 R15: 0000000000000004 qlist_free_all+0x6d/0x190 kasan_quarantine_reduce+0x180/0x200 __kasan_slab_alloc+0x78/0x80 kmem_cache_alloc+0x1aa/0x480 create_object.isra.0+0x3a/0xa20 kmem_cache_alloc+0x239/0x480 alloc_vfsmnt+0x23/0x6b0 clone_mnt+0x6d/0xdc0 copy_tree+0x3ac/0xa50 copy_mnt_ns+0x1a5/0xa90 create_new_namespaces+0xd6/0xb30 copy_namespaces+0x391/0x450 copy_process+0x2c06/0x6db0 kernel_clone+0xe7/0xa60 __do_sys_clone3+0x1dd/0x2e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fbbc3425b19 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:00007fbbc099b188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fbbc3538f60 RCX: 00007fbbc3425b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000640 RBP: 00007fbbc347ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffc03da8ef R14: 00007fbbc099b300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 166 Comm: sd-resolve Not tainted 5.18.0-rc1-next-20220407 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:__stack_depot_save+0x135/0x450 Code: 05 89 d9 81 e1 ff ff 0f 00 48 8d 0c c8 48 8b 29 48 85 ed 75 12 e9 92 00 00 00 48 8b 6d 00 48 85 ed 0f 84 85 00 00 00 39 5d 08 <75> ee 44 3b 7d 0c 75 e8 31 c0 48 8b 74 c5 18 49 39 34 c6 75 db 48 RSP: 0018:ffff88800d99fa40 EFLAGS: 00000246 RAX: ffff88806c300000 RBX: 00000000cfe8eede RCX: ffff88806c7776f0 RDX: 000000000000000b RSI: 0000000000000001 RDI: 00000000647cba3a RBP: ffff88800f2ca120 R08: 00000000b4cf3f65 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000cc0 R14: ffff88800d99fa98 R15: 000000000000000b FS: 00007efc9163c700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0006d6000 CR3: 000000000efd2000 CR4: 0000000000350ee0 Call Trace: kasan_save_stack+0x2e/0x40 __kasan_slab_alloc+0x66/0x80 kmem_cache_alloc_lru+0x240/0x7c0 __d_alloc+0x31/0x990 d_alloc_pseudo+0x19/0x70 alloc_file_pseudo+0xce/0x250 sock_alloc_file+0x4f/0x190 __sys_socket+0x13d/0x200 __x64_sys_socket+0x6f/0xb0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7efc91f33477 Code: 73 01 c3 48 8b 0d 19 ea 0b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e9 e9 0b 00 f7 d8 64 89 01 48 RSP: 002b:00007efc916349b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efc91f33477 RDX: 0000000000000000 RSI: 0000000000080802 RDI: 0000000000000002 RBP: 00007efc9163cdb8 R08: 000000000000002b R09: 00007efc91634cd8 R10: 00007efc916349a4 R11: 0000000000000246 R12: 00000000ffffffff R13: 00007efc91634ce8 R14: 00007efc9163cdcc R15: 00007efc9163cdb8 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 03 80 3c 02 00 75 add 0x7500023c(%rax),%eax 6: 32 48 8b xor -0x75(%rax),%cl 9: 7b 58 jnp 0x63 b: e8 cf 83 0b 00 callq 0xb83df 10: 85 c0 test %eax,%eax 12: 74 d3 je 0xffffffe7 14: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1b: fc ff df 1e: 48 89 ea mov %rbp,%rdx 21: 48 c1 ea 03 shr $0x3,%rdx 25: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 29: 75 18 jne 0x43 <-- trapping instruction 2b: 48 8b 43 58 mov 0x58(%rbx),%rax 2f: 5b pop %rbx 30: 5d pop %rbp 31: c3 retq 32: e8 18 f4 65 00 callq 0x65f44f 37: eb a8 jmp 0xffffffe1 39: 48 89 ef mov %rbp,%rdi 3c: e8 .byte 0xe8 3d: 1e (bad) 3e: f4 hlt