watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.3:13155] Modules linked in: irq event stamp: 4453933 hardirqs last enabled at (4453932): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4453933): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4416050): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (4416053): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 13155 Comm: syz-executor.3 Not tainted 6.5.0-rc7-next-20230821 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_switch+0x34/0x90 Code: 49 89 fc 55 48 89 f5 53 48 8b 46 08 48 83 f8 20 74 6b 77 48 48 83 f8 08 74 5b 48 83 f8 10 75 2f 41 bd 03 00 00 00 4c 8b 75 00 <31> db 4d 85 f6 74 1e 48 8b 74 dd 10 48 8b 4c 24 28 4c 89 e2 4c 89 RSP: 0018:ffff88806ce09748 EFLAGS: 00000246 RAX: 0000000000000008 RBX: ffff88806ce097f8 RCX: 0000000000000001 RDX: 0000000000000001 RSI: ffffffff84854540 RDI: 0000000000000005 RBP: ffffffff84854540 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000002 R11: 1ffff1100d9c69d4 R12: 0000000000000005 R13: 0000000000000001 R14: 0000000000000008 R15: ffffffff8616407e FS: 00007fcce4a59700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cf26000 CR3: 0000000014cf8000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0x67a/0x25d0 arch_stack_walk+0xe6/0x160 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 kmem_cache_alloc_node+0x23d/0x3b0 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:__sanitizer_cov_trace_switch+0x5d/0x90 Code: 00 31 db 4d 85 f6 74 1e 48 8b 74 dd 10 48 8b 4c 24 28 4c 89 e2 4c 89 ef 48 83 c3 01 e8 8c fd ff ff 49 39 de 75 e2 5b 5d 41 5c <41> 5d 41 5e e9 ca 7e 0f 03 41 bd 07 00 00 00 48 83 f8 40 74 be 5b RSP: 0018:ffff88803beb7908 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff88803beb79a0 RCX: ffffffff8113bd9f RDX: ffff888040218000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffffff864ed3cc R08: 0000000000000001 R09: 0000000000000004 R10: 0000000000000003 R11: 1ffff1100d9c69bf R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000003 R15: ffffffff864ed3d0 unwind_next_frame+0x73f/0x25d0 arch_stack_walk+0xe6/0x160 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_lru+0x248/0x680 sock_alloc_inode+0x27/0x1d0 alloc_inode+0x63/0x240 new_inode_pseudo+0x17/0x80 sock_alloc+0x40/0x270 __sock_create+0xc1/0x820 __sys_socket+0x148/0x260 __x64_sys_socket+0x73/0xb0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fcce74e3b19 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:00007fcce4a59188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fcce75f6f60 RCX: 00007fcce74e3b19 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 00007fcce753df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcbc5a958f R14: 00007fcce4a59300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 13159 Comm: syz-executor.5 Not tainted 6.5.0-rc7-next-20230821 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 Code: be b0 01 00 00 e8 a0 ff ff ff 31 c0 e9 49 7b 0f 03 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 8b 05 6d fb b5 7e 89 c1 48 8b 34 24 81 e1 00 01 00 RSP: 0018:ffff88806cf09130 EFLAGS: 00000002 RAX: 0000000000000000 RBX: 0000000000000019 RCX: 0000000000000100 RDX: ffff88801d8db680 RSI: ffffffff8152bfc2 RDI: 0000000000000005 RBP: 0000000000000100 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000100 R11: 1ffff1100d9e69e9 R12: 0000000000010103 R13: ffffe8ffffd00380 R14: dffffc0000000000 R15: ffffe8ffffd4c000 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faad25c0547 CR3: 0000000038484000 CR4: 0000000000350ee0 Call Trace: tracing_gen_ctx_irq_test+0x8a/0x1a0 perf_trace_buf_update+0x37/0x190 perf_tp_event+0x142/0x1280 perf_trace_run_bpf_submit+0xf3/0x190 perf_trace_lock+0x2d5/0x480 lock_release+0x4a9/0x680 _raw_spin_unlock_irqrestore+0x1a/0x50 hrtimer_interrupt+0x336/0x750 __sysvec_apic_timer_interrupt+0xb3/0x330 sysvec_apic_timer_interrupt+0x33/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0xb/0x70 Code: c0 e9 49 7b 0f 03 66 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 65 8b 05 6d fb b5 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 8d 03 00 a9 RSP: 0018:ffff88806cf097b0 EFLAGS: 00000292 RAX: 0000000000000101 RBX: ffff88806cf09838 RCX: 0000000000000100 RDX: ffff88801d8db680 RSI: ffffffff8113abe1 RDI: 0000000000000006 RBP: ffffffff860fe59c R08: 0000000000000006 R09: ffffffff813d47fb R10: ffffffff813d46c9 R11: 1ffff1100d9e69d4 R12: 0000000000000002 R13: ffffffff813d47fb R14: ffff88806cf09879 R15: 00000000000118f0 unwind_next_frame+0x803/0x25d0 arch_stack_walk+0xe6/0x160 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 kmem_cache_alloc_node+0x23d/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:release_pages+0x1af/0x1020 Code: 85 72 0c 00 00 48 8b 5d 00 49 89 df 49 83 e7 fc 49 8d 7f 08 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 47 0c 00 00 49 8b 47 08 <31> ff 49 89 c4 48 89 44 24 10 41 83 e4 01 4c 89 e6 e8 9b a0 e5 ff RSP: 0018:ffff888030aff5b8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffea0000ce5480 RCX: 0000000000000000 RDX: ffff88801d8db680 RSI: ffffffff8167ecf8 RDI: ffffea0000ce5488 RBP: ffff88801d9e9e98 R08: 0000000000000004 R09: 00000000000001fe R10: 00000000000001d1 R11: 1ffff1100d9e69bf R12: 0000000000000004 R13: dffffc0000000000 R14: 00000000000001d1 R15: ffffea0000ce5480 tlb_batch_pages_flush+0xa8/0x1b0 unmap_page_range+0x16f9/0x2300 unmap_single_vma+0x19a/0x2b0 unmap_vmas+0x1b2/0x300 exit_mmap+0x16a/0x9b0 mmput+0xd5/0x390 do_exit+0x99f/0x2740 do_group_exit+0xd4/0x2a0 get_signal+0x2693/0x2720 arch_do_signal_or_restart+0x81/0x790 exit_to_user_mode_prepare+0xeb/0x180 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f1c018f8b19 Code: Unable to access opcode bytes at 0x7f1c018f8aef. RSP: 002b:00007f1bfee6e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000006 RBX: 00007f1c01a0bf60 RCX: 00007f1c018f8b19 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 00007f1c01952f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc56433ddf R14: 00007f1bfee6e300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 49 89 fc mov %rdi,%r12 3: 55 push %rbp 4: 48 89 f5 mov %rsi,%rbp 7: 53 push %rbx 8: 48 8b 46 08 mov 0x8(%rsi),%rax c: 48 83 f8 20 cmp $0x20,%rax 10: 74 6b je 0x7d 12: 77 48 ja 0x5c 14: 48 83 f8 08 cmp $0x8,%rax 18: 74 5b je 0x75 1a: 48 83 f8 10 cmp $0x10,%rax 1e: 75 2f jne 0x4f 20: 41 bd 03 00 00 00 mov $0x3,%r13d 26: 4c 8b 75 00 mov 0x0(%rbp),%r14 * 2a: 31 db xor %ebx,%ebx <-- trapping instruction 2c: 4d 85 f6 test %r14,%r14 2f: 74 1e je 0x4f 31: 48 8b 74 dd 10 mov 0x10(%rbp,%rbx,8),%rsi 36: 48 8b 4c 24 28 mov 0x28(%rsp),%rcx 3b: 4c 89 e2 mov %r12,%rdx 3e: 4c rex.WR 3f: 89 .byte 0x89