watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.6:9238] Modules linked in: irq event stamp: 5268371 hardirqs last enabled at (5268370): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5268371): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5268058): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (5268061): [] irq_exit_rcu+0x93/0xc0 CPU: 1 PID: 9238 Comm: syz-executor.6 Not tainted 6.5.0-rc6-next-20230818 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x20 Code: bf 03 00 00 00 e9 58 fe ff ff 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 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 2a fe ff ff 66 2e 0f 1f 84 00 00 00 RSP: 0018:ffff88806cf099c8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88806cf09a90 RCX: ffffffff8113b43a RDX: 1ffff1100d9e1352 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff88800e5dfe80 R08: 0000000000000001 R09: 0000000000000004 R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000008 R13: 0000000000000001 R14: ffff88800e5dfe80 R15: ffffffff861658f0 FS: 00007fb0c9224700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe69ab2fe8 CR3: 0000000006a50000 CR4: 0000000000350ee0 Call Trace: stack_access_ok+0x4a/0x260 unwind_next_frame+0xd01/0x25d0 arch_stack_walk+0xe6/0x160 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2b/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0x10d/0x4d0 rcu_core+0x8e1/0x28f0 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:write_comp_data+0x3c/0x90 Code: 81 e6 00 01 00 00 65 48 8b 14 25 80 8d 03 00 a9 00 01 ff 00 74 0e 85 f6 74 59 8b 82 9c 14 00 00 85 c0 74 4f 8b 82 78 14 00 00 <83> f8 03 75 44 48 8b 82 80 14 00 00 8b 92 7c 14 00 00 48 8b 38 48 RSP: 0018:ffff88800e5df178 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff88800e5df4f0 RCX: ffffffff81b5b095 RDX: ffff88802dd23680 RSI: 0000000000000000 RDI: 0000000000000007 RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000001 R10: 0000000000003e6d R11: 0000000000000001 R12: ffff88800bee6000 R13: dffffc0000000000 R14: 0000000000003e6d R15: ffff88800ef58000 __ext4_get_inode_loc+0xc5/0x12f0 ext4_get_inode_loc+0xbe/0x160 ext4_reserve_inode_write+0xce/0x280 ext4_xattr_set_handle+0x405/0x14c0 ext4_initxattrs+0xb9/0x120 security_inode_init_security+0x221/0x380 __ext4_new_inode+0x38b0/0x53d0 ext4_create+0x2e4/0x4e0 lookup_open.isra.0+0x1028/0x1400 path_openat+0x96c/0x2710 do_filp_open+0x1ba/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fb0cbcaeb19 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:00007fb0c9224188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb0cbdc1f60 RCX: 00007fb0cbcaeb19 RDX: 00000000001c1042 RSI: 0000000020000200 RDI: ffffffffffffff9c RBP: 00007fb0cbd08f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca488d46f R14: 00007fb0c9224300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 9239 Comm: syz-executor.1 Not tainted 6.5.0-rc6-next-20230818 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__lock_acquire+0xbcd/0x6340 Code: 48 c7 c2 2c 2c d5 85 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 48 c7 c0 2c 2c d5 85 83 e0 07 83 c0 03 38 d0 7c 08 <84> d2 0f 85 d8 47 00 00 8b 35 41 ec a6 04 85 f6 0f 85 a7 00 00 00 RSP: 0018:ffff88806ce08e50 EFLAGS: 00000002 RAX: 0000000000000007 RBX: e272cafae2a5a6a5 RCX: ffff888015a9a530 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888015a9a619 RBP: ffff888015a99b40 R08: 0000000000000000 R09: 0000000000000005 R10: ffffffff8774fb4f R11: 0000000000000001 R12: ffff888015a9a5f8 R13: 0000000000000040 R14: 0000000000000001 R15: 0000000000000001 FS: 00007f82ae8bb700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000559fd0bac230 CR3: 000000003ed46000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x19a/0x4c0 ktime_get+0x80/0x1f0 perf_swevent_hrtimer+0x224/0x3d0 __hrtimer_run_queues+0x17f/0xb60 hrtimer_interrupt+0x2ef/0x750 __sysvec_apic_timer_interrupt+0xb3/0x330 sysvec_apic_timer_interrupt+0x33/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x243/0x25d0 Code: 83 3b 1c 00 00 e8 ad d8 39 00 41 89 ef 48 b8 00 00 00 00 00 fc ff df 4a 8d 3c bd 34 b0 51 86 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 d7 a6 6f 00 RSP: 0018:ffff88806ce09570 EFLAGS: 00000212 RAX: dffffc0000000000 RBX: ffff88806ce095f0 RCX: 0000000000000100 RDX: 0000000000000000 RSI: ffffffff8113b883 RDI: ffffffff865a1e40 RBP: 0000000000021b83 R08: 0000000000000004 R09: 0000000000021b83 R10: 0000000000038000 R11: 0000000000000000 R12: 0000000000000002 R13: ffffffff831b8354 R14: ffff88806ce09631 R15: 0000000000021b83 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+0x17b/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc_node+0x23d/0x3b0 __alloc_skb+0x28c/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:finish_task_switch.isra.0+0x20d/0x830 Code: 89 ff 48 c7 03 00 00 00 00 e8 7f b4 38 03 4d 85 e4 75 ba 4c 89 ff e8 42 8f 38 03 e8 0d ac 30 00 fb 65 48 8b 1c 25 80 8d 03 00 <48> 8d bb 78 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffff88800da07398 EFLAGS: 00000202 RAX: 000000000009fc8f RBX: ffff888015a99b40 RCX: ffffffff812e00af RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81242233 RBP: ffff88800da073d8 R08: 0000000000000001 R09: fffffbfff0ee9f78 R10: ffffffff8774fbc7 R11: 0000000000000001 R12: ffff88806ce397d8 R13: ffff88800c798000 R14: ffff88803f5f04a8 R15: ffff88806ce397c0 __schedule+0x9b1/0x2b00 __cond_resched+0x46/0x70 __ext4_mark_inode_dirty+0xf1/0x7b0 __ext4_new_inode+0x43eb/0x53d0 ext4_create+0x2e4/0x4e0 lookup_open.isra.0+0x1028/0x1400 path_openat+0x96c/0x2710 do_filp_open+0x1ba/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f82b1345b19 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:00007f82ae8bb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f82b1458f60 RCX: 00007f82b1345b19 RDX: 00000000001c1042 RSI: 0000000020000200 RDI: ffffffffffffff9c RBP: 00007f82b139ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc8d8129cf R14: 00007f82ae8bb300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: bf 03 00 00 00 mov $0x3,%edi 5: e9 58 fe ff ff jmpq 0xfffffe62 a: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 11: 00 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 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: f3 0f 1e fa endbr64 26: 48 8b 0c 24 mov (%rsp),%rcx * 2a: 89 f2 mov %esi,%edx <-- trapping instruction 2c: 89 fe mov %edi,%esi 2e: bf 05 00 00 00 mov $0x5,%edi 33: e9 2a fe ff ff jmpq 0xfffffe62 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax)