watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.6:14390] Modules linked in: irq event stamp: 5297893 hardirqs last enabled at (5297892): [] asm_sysvec_x86_platform_ipi-0xa/0x20 hardirqs last disabled at (5297893): [] sysvec_apic_timer_interrupt+0xb/0xd0 softirqs last enabled at (5286142): [] __irq_exit_rcu+0x11b/0x190 softirqs last disabled at (5286145): [] __irq_exit_rcu+0x11b/0x190 CPU: 0 PID: 14390 Comm: syz-executor.6 Not tainted 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__is_insn_slot_addr+0x78/0x260 Code: 40 84 ed 0f 84 fd 00 00 00 e8 64 84 ff ff 4c 8d b3 a8 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 80 3c 02 00 <0f> 85 bf 01 00 00 48 8b 9b a8 00 00 00 4c 39 f3 74 78 49 bd 00 00 RSP: 0018:ffff88806d009748 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffffffff8524e1e0 RCX: 0000000000000100 RDX: 1ffffffff0a49c51 RSI: ffffffff8148a65c RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 00007f145965eb19 R13: 0000000000000000 R14: ffffffff8524e288 R15: ffff88803d4f8de0 FS: 00007f1456bd4700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f564dea0ae0 CR3: 00000000432d0000 CR4: 0000000000350ef0 Call Trace: kernel_text_address+0x44/0xc0 __kernel_text_address+0x9/0x50 unwind_get_return_address+0x55/0xb0 arch_stack_walk+0x99/0x100 stack_trace_save+0x8c/0xd0 kasan_save_stack+0x1e/0x50 kasan_set_track+0x21/0x40 __kasan_kmalloc+0x7e/0xa0 __kmalloc_node_track_caller+0x4d/0xc0 __alloc_skb+0xe5/0x320 __netdev_alloc_skb+0x72/0x3f0 __ieee80211_beacon_get+0x3de/0x1390 ieee80211_beacon_get_tim+0x95/0x4f0 mac80211_hwsim_beacon_tx+0x1ce/0xac0 __iterate_interfaces+0x2d3/0x570 ieee80211_iterate_active_interfaces_atomic+0x70/0x190 mac80211_hwsim_beacon+0x101/0x210 __hrtimer_run_queues+0x541/0xb60 hrtimer_run_softirq+0x172/0x350 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x190 irq_exit_rcu+0x5/0x30 sysvec_apic_timer_interrupt+0x8e/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:strncpy+0x2/0xc0 Code: 8f 58 fd 48 8b 34 24 eb c2 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 56 <49> 89 fe 41 55 41 54 55 53 48 83 ec 08 48 85 d2 74 5c 4c 8d 2c 17 RSP: 0018:ffff888037657c70 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000138 RCX: 1ffff11001f730ff RDX: 0000000000000010 RSI: ffff88801e2ea1f0 RDI: ffff88800fb987fc RBP: ffff88801b784000 R08: 0000000000000001 R09: ffff88800fb987b3 R10: ffffed1001f730f6 R11: 0000000000000001 R12: ffff88800fb98768 R13: 0000000000000000 R14: ffff88800fb987fc R15: ffff88800fb98720 __create_object+0x68d/0xc10 kmem_cache_alloc_lru+0x2d8/0x750 __d_alloc+0x31/0x9d0 d_alloc_pseudo+0x19/0x80 alloc_file_pseudo+0xce/0x260 sock_alloc_file+0x4f/0x1b0 __sys_socket+0x1a8/0x260 __x64_sys_socket+0x6f/0xc0 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f145965eb19 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:00007f1456bd4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f1459771f60 RCX: 00007f145965eb19 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 RBP: 00007f14596b8f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff7854d81f R14: 00007f1456bd4300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 14377 Comm: syz-executor.5 Not tainted 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__read_once_word_nocheck+0x3/0x20 Code: ff e8 a1 44 69 00 e9 43 fd ff ff cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 b8 ba 26 03 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffff88806d109710 EFLAGS: 00000202 RAX: ffffffff8117a1d0 RBX: 0000000000000001 RCX: 0000000000000001 RDX: ffff88803764fc01 RSI: ffff88803764fcd8 RDI: ffff88803764fcd8 RBP: ffff88806d1097f0 R08: ffffffff85c59704 R09: ffffffff85c59708 R10: ffff88806d109ff8 R11: ffff88806d1097d8 R12: ffff88806d1097d9 R13: ffff88806d1097f8 R14: ffff88806d109798 R15: ffffffff85c59709 FS: 0000000000000000(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30022000 CR3: 0000000005026000 CR4: 0000000000350ee0 Call Trace: unwind_next_frame+0x963/0x2140 arch_stack_walk+0x83/0x100 stack_trace_save+0x8c/0xd0 kasan_save_stack+0x1e/0x50 kasan_set_track+0x21/0x40 __kasan_slab_alloc+0x58/0x80 kmem_cache_alloc_node+0x1c6/0x410 __alloc_skb+0x216/0x320 __netdev_alloc_skb+0x72/0x3f0 __ieee80211_beacon_get+0x3de/0x1390 ieee80211_beacon_get_tim+0x95/0x4f0 mac80211_hwsim_beacon_tx+0x1ce/0xac0 __iterate_interfaces+0x2d3/0x570 ieee80211_iterate_active_interfaces_atomic+0x70/0x190 mac80211_hwsim_beacon+0x101/0x210 __hrtimer_run_queues+0x541/0xb60 hrtimer_run_softirq+0x172/0x350 __do_softirq+0x1c3/0x8f5 __irq_exit_rcu+0x11b/0x190 irq_exit_rcu+0x5/0x30 sysvec_apic_timer_interrupt+0x8e/0xd0 asm_sysvec_x86_platform_ipi-0xa/0x20 RIP: 0010:perf_trace_lock+0x98/0x570 Code: 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 48 8d 46 18 48 89 85 48 ff ff ff 48 c1 e8 03 80 3c 10 00 0f 85 58 03 00 00 49 8b 7d 18 <48> c7 c0 00 e3 66 84 48 85 ff 48 0f 44 f8 e8 95 42 f9 02 49 8d 7f RSP: 0018:ffff88803764f540 EFLAGS: 00000246 RAX: 1ffff110070130de RBX: ffff88803df2bb10 RCX: ffffffff812b91ae RDX: dffffc0000000000 RSI: ffff8880380986d8 RDI: ffffffff84654180 RBP: ffff88803764f618 R08: 0000000000000000 R09: ffffffff8590bb17 R10: fffffbfff0b21762 R11: 0000000000000001 R12: 1ffff11006ec9eae R13: ffff8880380986d8 R14: ffff88803764f5f0 R15: ffffffff8510b840 lock_release+0x4ae/0x760 _raw_spin_unlock+0x12/0x50 unmap_page_range+0xd29/0x2a50 unmap_single_vma+0x190/0x2b0 unmap_vmas+0x21e/0x380 exit_mmap+0x154/0x690 mmput+0xd1/0x3a0 do_exit+0x993/0x2730 do_group_exit+0xd0/0x2b0 get_signal+0x2195/0x22e0 arch_do_signal_or_restart+0x75/0x5b0 exit_to_user_mode_prepare+0x131/0x1b0 syscall_exit_to_user_mode+0x19/0x50 do_syscall_64+0x48/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fb79adcab19 Code: Unable to access opcode bytes at 0x7fb79adcaaef. RSP: 002b:00007fb798340188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000006 RBX: 00007fb79aeddf60 RCX: 00007fb79adcab19 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 RBP: 00007fb79ae24f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe4b0297ef R14: 00007fb798340300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 40 84 ed test %bpl,%bpl 3: 0f 84 fd 00 00 00 je 0x106 9: e8 64 84 ff ff callq 0xffff8472 e: 4c 8d b3 a8 00 00 00 lea 0xa8(%rbx),%r14 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 4c 89 f2 mov %r14,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 0f 85 bf 01 00 00 jne 0x1ef <-- trapping instruction 30: 48 8b 9b a8 00 00 00 mov 0xa8(%rbx),%rbx 37: 4c 39 f3 cmp %r14,%rbx 3a: 74 78 je 0xb4 3c: 49 rex.WB 3d: bd .byte 0xbd