watchdog: BUG: soft lockup - CPU#0 stuck for 144s! [syz.5.1327:11745] Modules linked in: irq event stamp: 13238035 hardirqs last enabled at (13238034): [] irqentry_exit+0x63/0x90 kernel/entry/common.c:357 hardirqs last disabled at (13238035): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (13228252): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last enabled at (13228252): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last enabled at (13228252): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 softirqs last disabled at (13228255): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last disabled at (13228255): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last disabled at (13228255): [] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 CPU: 0 UID: 0 PID: 11745 Comm: syz.5.1327 Not tainted 6.13.0-rc3-syzkaller-ge84a3bf7f4aa #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 5e 79 3a f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 d3 26 a2 f5 65 8b 05 74 7a 38 74 85 c0 74 43 48 c7 04 24 0e 36 RSP: 0018:ffffc90000007be0 EFLAGS: 00000206 RAX: cc1ce4fbe94d2b00 RBX: 1ffff92000000f80 RCX: ffffffff817b275a RDX: dffffc0000000000 RSI: ffffffff8c0a9760 RDI: 0000000000000001 RBP: ffffc90000007c70 R08: ffffffff942a48b7 R09: 1ffffffff2854916 R10: dffffc0000000000 R11: fffffbfff2854917 R12: dffffc0000000000 R13: 1ffff92000000f7c R14: ffffc90000007c00 R15: 0000000000000246 FS: 00007fbb770f46c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2b50177bac CR3: 000000005a9a6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000082 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __run_hrtimer kernel/time/hrtimer.c:1735 [inline] __hrtimer_run_queues+0x477/0xd30 kernel/time/hrtimer.c:1803 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0xa3/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738 RIP: 0010:preempt_schedule_irq+0xf6/0x1c0 kernel/sched/core.c:7078 Code: 89 f5 49 c1 ed 03 eb 0d 48 f7 03 08 00 00 00 0f 84 8b 00 00 00 bf 01 00 00 00 e8 25 c4 a3 f5 e8 60 71 dd f5 fb bf 01 00 00 00 85 ab ff ff 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 05 19 3c f6 48 RSP: 0018:ffffc900048ef980 EFLAGS: 00000282 RAX: cc1ce4fbe94d2b00 RBX: 1ffff9200091df38 RCX: ffffffff817b275a RDX: dffffc0000000000 RSI: ffffffff8c0a9760 RDI: 0000000000000001 RBP: ffffc900048efa40 R08: ffffffff942a48b7 R09: 1ffffffff2854916 R10: dffffc0000000000 R11: fffffbfff2854917 R12: 1ffff9200091df30 R13: 1ffff9200091df34 R14: ffffc900048ef9a0 R15: dffffc0000000000 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:put_cpu_partial+0x185/0x250 Code: 44 24 10 00 02 00 00 75 3f f7 c3 00 02 00 00 75 44 4d 85 e4 74 0b 4c 89 ff 4c 89 e6 e8 b4 e3 ff ff 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 18 0f 85 b4 00 00 00 48 83 c4 20 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc900048efb08 EFLAGS: 00000292 RAX: cc1ce4fbe94d2b00 RBX: 0000000000000282 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000000 R08: ffffffff942a48b7 R09: 1ffffffff2854916 R10: dffffc0000000000 R11: fffffbfff2854917 R12: ffffea00009c4200 R13: ffffea0001f89e00 R14: ffff888027b80000 R15: ffff88801ac42140 __slab_free+0x290/0x380 mm/slub.c:4483 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175 alloc_empty_file+0x9e/0x1d0 fs/file_table.c:228 alloc_file fs/file_table.c:345 [inline] alloc_file_pseudo+0x1da/0x290 fs/file_table.c:376 sock_alloc_file+0xb8/0x280 net/socket.c:468 sock_map_fd net/socket.c:493 [inline] __sys_socket+0x1dd/0x3c0 net/socket.c:1709 __do_sys_socket net/socket.c:1714 [inline] __se_sys_socket net/socket.c:1712 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1712 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbb76385d29 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbb770f4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007fbb76575fa0 RCX: 00007fbb76385d29 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010 RBP: 00007fbb76401b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fbb76575fa0 R15: 00007ffdb8e6d288 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.13.0-rc3-syzkaller-ge84a3bf7f4aa #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x19f3/0x2c60 kernel/smp.c:884 Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 56 e9 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 01 e5 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 e5 e4 RSP: 0018:ffffc90000ab76e0 EFLAGS: 00000293 RAX: ffffffff81938f0b RBX: 1ffff110170c8c89 RCX: ffff88801dea1e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000ab78e0 R08: ffffffff81938eda R09: 1ffffffff2854910 R10: dffffc0000000000 R11: fffffbfff2854911 R12: dffffc0000000000 R13: ffff8880b8646448 R14: ffff8880b873fac0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558cf4ad3a28 CR3: 000000000e736000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1051 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2114 [inline] text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2324 text_poke_flush arch/x86/kernel/alternative.c:2515 [inline] text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2522 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 toggle_allocation_gate+0xbc/0x260 mm/kfence/core.c:849 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244