watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.5:58503] Modules linked in: irq event stamp: 5989971 hardirqs last enabled at (5989970): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5989971): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5912208): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (5912211): [] irq_exit_rcu+0x93/0xc0 CPU: 1 PID: 58503 Comm: syz-executor.5 Not tainted 6.5.0-rc4-next-20230731 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x71/0x2490 Code: 00 00 00 fc ff df 49 8d 6f 58 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 08 1a 00 00 49 8b 47 58 4d 8d 6f 48 4c 89 ea 48 89 04 24 <48> c1 ea 03 48 b8 00 00 00 00 00 fc ff df 80 3c 02 00 0f 85 d4 19 RSP: 0018:ffff88806cf09700 EFLAGS: 00000246 RAX: ffffffff811909a3 RBX: 0000000000000002 RCX: 0000000000000001 RDX: ffff88806cf097b8 RSI: ffffffff811909a3 RDI: ffff88806cf09770 RBP: ffff88806cf097c8 R08: 0000000000000001 R09: ffff88806cf097b0 R10: 0000000000038001 R11: 00000000000b84de R12: ffff88806cf09838 R13: ffff88806cf097b8 R14: ffff888042379b40 R15: ffff88806cf09770 FS: 00007fa58eaff700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa58eafefe8 CR3: 00000000454ea000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x87/0xf0 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 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb11/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __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_pc+0x50/0x70 Code: 0e 85 c9 74 35 8b 82 9c 14 00 00 85 c0 74 2b 8b 82 78 14 00 00 83 f8 02 75 20 48 8b 8a 80 14 00 00 8b 92 7c 14 00 00 48 8b 01 <48> 83 c0 01 48 39 c2 76 07 48 89 01 48 89 34 c1 e9 eb a8 0f 03 66 RSP: 0018:ffff888047fdf740 EFLAGS: 00000246 RAX: 0000000000001caf RBX: 00007fa591588c27 RCX: ffffc9000d3e9000 RDX: 0000000000040000 RSI: ffffffff81007bbc RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000002 R10: 0000000000000001 R11: 00000000000b91f6 R12: ffff888047fdf888 R13: 0000000000000000 R14: ffff888042379b40 R15: ffff88804281a980 in_gate_area_no_mm+0x2c/0x80 core_kernel_text+0x24/0xa0 kernel_text_address+0x11/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 kmem_cache_alloc+0x21f/0x390 jbd2__journal_start+0x194/0x810 __ext4_journal_start_sb+0x3d7/0x560 __ext4_new_inode+0x2df9/0x53d0 ext4_mkdir+0x33e/0xb20 vfs_mkdir+0x24b/0x470 do_mkdirat+0x163/0x2d0 __x64_sys_mkdir+0xf6/0x150 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fa591588c27 Code: 73 01 c3 48 c7 c1 bc ff ff ff 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 53 00 00 00 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:00007fa58eafefa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa591588c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000100 RBP: 00007fa58eaff040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000100 R14: 00007fa58eaff000 R15: 0000000000000000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-rc4-next-20230731 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_check_range+0x66/0x1b0 Code: 5b 5d 41 5c e9 db 3d da 02 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 76 dd 4c 8d 54 37 ff 48 89 fd 48 b8 00 00 00 00 00 fc ff df <4d> 89 d1 48 c1 ed 03 49 c1 e9 03 48 01 c5 49 01 c1 48 89 e8 49 8d RSP: 0018:ffff88806ce09a18 EFLAGS: 00000212 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff845c4fab RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff85a6f9c0 RBP: ffffffff85a6f9c0 R08: 0000000000000000 R09: fffffbfff0b4df38 R10: ffffffff85a6f9c3 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4df38 R14: 0000000000000001 R15: 1ffff1100d9c1348 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe956320a0 CR3: 000000000d8dc000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: queued_spin_lock_slowpath+0xab/0xb20 do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6e7/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __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:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d e3 88 28 00 fb f4 e9 fb 7a 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85407e10 EFLAGS: 00000202 RAX: 00000000004abdad RBX: 0000000000000000 RCX: ffffffff8459e6ee RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8128e835 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6a00 R10: ffff88806ce35003 R11: 0000000000000001 R12: ffffffff85d4de10 R13: 1ffffffff0a80fc7 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 rest_init+0x168/0x290 arch_call_rest_init+0x13/0x40 start_kernel+0x3c4/0x4e0 x86_64_start_reservations+0x18/0x30 x86_64_start_kernel+0xcf/0xe0 secondary_startup_64_no_verify+0x179/0x17b ---------------- Code disassembly (best guess), 5 bytes skipped: 0: df 49 8d fisttps -0x73(%rcx) 3: 6f outsl %ds:(%rsi),(%dx) 4: 58 pop %rax 5: 48 89 ea mov %rbp,%rdx 8: 48 c1 ea 03 shr $0x3,%rdx c: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 10: 0f 85 08 1a 00 00 jne 0x1a1e 16: 49 8b 47 58 mov 0x58(%r15),%rax 1a: 4d 8d 6f 48 lea 0x48(%r15),%r13 1e: 4c 89 ea mov %r13,%rdx 21: 48 89 04 24 mov %rax,(%rsp) * 25: 48 c1 ea 03 shr $0x3,%rdx <-- trapping instruction 29: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 30: fc ff df 33: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 37: 0f .byte 0xf 38: 85 d4 test %edx,%esp 3a: 19 .byte 0x19