watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.2:16062] Modules linked in: irq event stamp: 6401371 hardirqs last enabled at (6401370): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (6401371): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (6241776): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (6241779): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 16062 Comm: syz-executor.2 Not tainted 6.1.0-rc8-next-20221207 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kernel_text_address+0x4/0xc0 Code: 23 03 48 c7 c7 04 54 d0 85 e8 c8 79 5e 00 eb bb 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 <55> 48 89 fd 48 83 ec 08 e8 3f ff ff ff 85 c0 74 0f b8 01 00 00 00 RSP: 0018:ffff88806cf09600 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffffffff817d3be5 RCX: 0000000000000000 RDX: 1ffff1100d9e12d1 RSI: ffff88806cf09978 RDI: ffffffff817d3be5 RBP: ffff88806cf09688 R08: ffffffff860ee636 R09: ffffffff860ee63a R10: ffffed100d9e12d3 R11: ffff88806cf09670 R12: ffff88806cf096f8 R13: 0000000000000000 R14: ffff888016765040 R15: 0000000000000170 FS: 00007ff96dc96700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8038ba03a4 CR3: 0000000044826000 CR4: 0000000000350ee0 Call Trace: __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_slab_alloc+0x5c/0x70 kmem_cache_alloc+0x1e1/0x410 __create_object+0x3d/0xc10 __kmem_cache_alloc_node+0x25b/0x400 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0x33/0x1a0 Code: 01 00 00 41 57 41 56 41 55 49 89 fd 41 54 49 bc 00 00 00 00 00 fc ff df 55 48 89 f5 53 48 83 ec 08 eb 4d 49 63 86 c0 00 00 00 <49> 8b 18 4c 89 f7 49 29 c0 4c 89 c6 4d 89 c7 e8 39 f4 ff ff 48 89 RSP: 0018:ffff888046fc7990 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff8880468b1c00 RCX: ffffea00011a2c01 RDX: ffffea00011a2c00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8880468b1c00 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff888046fc79d0 R14: ffff888008441c80 R15: ffff8880360ca000 kasan_quarantine_reduce+0x196/0x230 __kasan_slab_alloc+0x4c/0x70 kmem_cache_alloc+0x1e1/0x410 security_file_alloc+0x38/0x170 __alloc_file+0xb6/0x240 alloc_empty_file+0x71/0x170 path_openat+0xd4/0x29b0 do_filp_open+0x1ba/0x410 do_sys_openat2+0x171/0x4c0 __x64_sys_open+0x11d/0x1c0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff970720b19 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:00007ff96dc96188 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007ff970833f60 RCX: 00007ff970720b19 RDX: 0000000000000098 RSI: 00000000000e4802 RDI: 0000000020000140 RBP: 00007ff97077af6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe543f32bf R14: 00007ff96dc96300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 16063 Comm: syz-executor.6 Not tainted 6.1.0-rc8-next-20221207 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_is_held_type+0x58/0x130 Code: c0 0f 85 c3 00 00 00 65 4c 8b 24 25 00 89 03 00 41 8b 94 24 5c 09 00 00 85 d2 0f 85 aa 00 00 00 48 89 fd 41 89 f6 9c 8f 04 24 48 c7 c7 40 02 87 84 4d 8d ac 24 60 09 00 00 31 db e8 21 0f 00 RSP: 0018:ffff88806ce09758 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff888047371300 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff856084e0 RBP: ffffffff856084e0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88803e16d040 R13: 00000000ffffffff R14: 00000000ffffffff R15: dffffc0000000000 FS: 00007f3322848700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c923000 CR3: 0000000036612000 CR4: 0000000000350ef0 Call Trace: rcu_read_lock_sched_held+0x42/0x80 __hrtimer_run_queues+0x7c7/0xba0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:queued_spin_lock_slowpath+0x128/0xc80 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 cd 0a 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 be 1f 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e5 00 00 RSP: 0018:ffff88806ce09a28 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84420f8b RDX: fffffbfff0b483a1 RSI: 0000000000000004 RDI: ffffffff85a41d00 RBP: ffffffff85a41d00 R08: 0000000000000000 R09: ffffffff85a41d03 R10: fffffbfff0b483a0 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b483a0 R14: 0000000000000001 R15: 1ffff1100d9c1346 do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:lockdep_init_map_type+0x36/0x7f0 Code: ff df 41 56 41 55 41 89 cd 41 54 49 89 d4 55 48 89 fd 48 83 c7 08 53 48 89 fa 48 c1 ea 03 48 83 ec 10 80 3c 02 00 8b 5c 24 40 <0f> 85 e5 06 00 00 48 8d 7d 10 48 c7 45 08 00 00 00 00 48 b8 00 00 RSP: 0018:ffff888047537b60 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1ffff11003d87620 RSI: ffffffff848fdf80 RDI: ffff88801ec3b100 RBP: ffff88801ec3b0f8 R08: 0000000000000002 R09: 0000000000000000 R10: ffff88806c440088 R11: 0000000000000001 R12: ffffffff879db740 R13: 0000000000000000 R14: 0000000000000001 R15: ffff88801ec3b0e0 __raw_spin_lock_init+0x3a/0x110 __create_object+0x121/0xc10 __kmem_cache_alloc_node+0x25b/0x400 kmalloc_trace+0x26/0x60 io_uring_alloc_task_context+0xaf/0x54e __io_uring_add_tctx_node.cold+0x19/0x17e io_uring_setup.cold+0x19d1/0x1bb1 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f33252d2b19 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:00007f3322848108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 00007f33253e5f60 RCX: 00007f33252d2b19 RDX: 0000000020ffe000 RSI: 0000000020000180 RDI: 00000000000035c3 RBP: 0000000020000180 R08: 0000000020000200 R09: 0000000020000200 R10: 0000000020000040 R11: 0000000000000202 R12: 0000000020000200 R13: 0000000020ffe000 R14: 0000000020000040 R15: 0000000020ffe000 ---------------- Code disassembly (best guess): 0: 23 03 and (%rbx),%eax 2: 48 c7 c7 04 54 d0 85 mov $0xffffffff85d05404,%rdi 9: e8 c8 79 5e 00 callq 0x5e79d6 e: eb bb jmp 0xffffffcb 10: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 66 0f 1f 00 nopw (%rax) * 2a: 55 push %rbp <-- trapping instruction 2b: 48 89 fd mov %rdi,%rbp 2e: 48 83 ec 08 sub $0x8,%rsp 32: e8 3f ff ff ff callq 0xffffff76 37: 85 c0 test %eax,%eax 39: 74 0f je 0x4a 3b: b8 01 00 00 00 mov $0x1,%eax