watchdog: BUG: soft lockup - CPU#0 stuck for 215s! [syz.2.349:6921] Modules linked in: irq event stamp: 1034526 hardirqs last enabled at (1034525): [] irqentry_exit+0x3b/0x90 kernel/entry/common.c:357 hardirqs last disabled at (1034526): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (1034524): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (1034524): [] handle_softirqs+0x5be/0x8e0 kernel/softirq.c:589 softirqs last disabled at (1034431): [] __do_softirq kernel/softirq.c:595 [inline] softirqs last disabled at (1034431): [] invoke_softirq kernel/softirq.c:435 [inline] softirqs last disabled at (1034431): [] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 CPU: 0 UID: 0 PID: 6921 Comm: syz.2.349 Not tainted 6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x4a5/0x1290 kernel/smp.c:885 Code: 89 ee e8 2e 1f 0c 00 85 ed 74 48 48 8b 44 24 20 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 dd 23 0c 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 de 0b 00 00 8b 43 08 31 RSP: 0018:ffffc9000443fa50 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b853f700 RCX: ffffffff81aef8a9 RDX: ffff888031f39e00 RSI: ffffffff81aef883 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10170a7ee1 R13: 0000000000000001 R14: dffffc0000000000 R15: ffff8880b843b180 FS: 000055557a433500(0000) GS:ffff8881249e2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000003c80 CR3: 0000000034008000 CR4: 0000000000350ef0 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1052 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2455 [inline] text_poke_bp_batch+0x220/0x760 arch/x86/kernel/alternative.c:2665 text_poke_flush arch/x86/kernel/alternative.c:2856 [inline] text_poke_flush arch/x86/kernel/alternative.c:2853 [inline] text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2863 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x1d7/0x400 kernel/jump_label.c:920 static_key_disable_cpuslocked+0x158/0x1c0 kernel/jump_label.c:240 static_key_disable+0x1a/0x20 kernel/jump_label.c:248 tracepoint_remove_func kernel/tracepoint.c:370 [inline] tracepoint_probe_unregister+0x4fd/0xd70 kernel/tracepoint.c:504 bpf_raw_tp_link_release+0x35/0x70 kernel/bpf/syscall.c:3615 bpf_link_free+0xec/0x390 kernel/bpf/syscall.c:3137 bpf_link_put_direct kernel/bpf/syscall.c:3180 [inline] bpf_link_release+0x5d/0x80 kernel/bpf/syscall.c:3187 __fput+0x402/0xb70 fs/file_table.c:465 task_work_run+0x150/0x240 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f056e18d169 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:00007ffe4074cce8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00000000000218ee RCX: 00007f056e18d169 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f056e3a7ba0 R08: 0000000000000001 R09: 000000044074cfdf R10: 00007f056e000000 R11: 0000000000000246 R12: 00007f056e3a5fac R13: 00007f056e3a5fa0 R14: ffffffffffffffff R15: 00007ffe4074ce00 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 5852 Comm: udevd Not tainted 6.14.0-syzkaller-10514-g7f2ff7b62617 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:88 [inline] RIP: 0010:do_raw_spin_lock+0xea/0x2b0 kernel/locking/spinlock_debug.c:115 Code: 39 c2 0f 84 60 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 63 08 4c 89 e2 48 c1 ea 03 0f b6 14 02 4c 89 e0 83 e0 07 83 c0 03 <38> d0 7c 08 84 d2 0f 85 67 01 00 00 8b 53 08 65 8b 05 c4 a2 0b 12 RSP: 0018:ffffc90000a08da8 EFLAGS: 00000006 RAX: 0000000000000003 RBX: ffff8880b8527840 RCX: ffffffff93aac640 RDX: 0000000000000000 RSI: ffffffff8dbb72dc RDI: ffff8880b8527844 RBP: 1ffff920001411b6 R08: 35a08aec8a9222e9 R09: 0000000000000001 R10: 0000000000000003 R11: 0000000000000000 R12: ffff8880b8527848 R13: ffff8880b8527850 R14: ffff8880293d7340 R15: 0000000000000001 FS: 00007fc19c334c80(0000) GS:ffff888124ae2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000300 CR3: 0000000066024000 CR4: 0000000000350ef0 Call Trace: __run_hrtimer kernel/time/hrtimer.c:1795 [inline] __hrtimer_run_queues+0x2bc/0xad0 kernel/time/hrtimer.c:1855 hrtimer_interrupt+0x397/0x8e0 kernel/time/hrtimer.c:1917 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x10b/0x3f0 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:slab_post_alloc_hook mm/slub.c:4138 [inline] RIP: 0010:slab_alloc_node mm/slub.c:4187 [inline] RIP: 0010:__do_kmalloc_node mm/slub.c:4317 [inline] RIP: 0010:__kmalloc_noprof+0x1d4/0x510 mm/slub.c:4330 Code: 02 09 72 0e 41 8b 5c 24 1c 44 21 ea 0f 1f 44 00 00 0f 1f 44 00 00 41 0f b6 c9 48 89 fe 4c 89 e7 44 88 4c 24 18 e8 dc 3c 0a 00 <48> 89 44 24 20 48 85 c0 74 17 44 0f b6 4c 24 18 45 84 c9 74 0c 89 RSP: 0018:ffffc9000402f910 EFLAGS: 00000202 RAX: ffff888028d9c000 RBX: 0000000000001000 RCX: 0000000000000000 RDX: 0000000000000200 RSI: 0000000000000000 RDI: ffffed10051b3a00 RBP: ffffc9000402f968 R08: 797bc49058175ed2 R09: ffffed10051b3800 R10: 00000000ffffffff R11: 0000000000000000 R12: ffff88801b442140 R13: 0000000000000c40 R14: 0000000000001000 R15: ffffffff84825d22 kmalloc_noprof include/linux/slab.h:906 [inline] tomoyo_realpath_from_path+0xc2/0x6e0 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path2_perm+0x36a/0x710 security/tomoyo/file.c:923 tomoyo_path_rename+0xfc/0x1a0 security/tomoyo/tomoyo.c:300 security_path_rename+0x18e/0x3c0 security/security.c:2026 do_renameat2+0x735/0xc90 fs/namei.c:5222 __do_sys_rename fs/namei.c:5282 [inline] __se_sys_rename fs/namei.c:5280 [inline] __x64_sys_rename+0x7d/0xa0 fs/namei.c:5280 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc19be9a93b Code: 48 8b 15 f0 64 15 00 83 c8 ff 64 83 3a 15 75 0e 48 8b 7c 24 08 e8 d5 d4 07 00 f7 d8 19 c0 48 83 c4 18 c3 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 be 64 15 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffc59ba3ec8 EFLAGS: 00000202 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc19be9a93b RDX: 0000561b8ea33613 RSI: 00007ffc59ba3ee8 RDI: 00007ffc59ba42e8 RBP: 0000561eef4dc4c0 R08: 0000000000000006 R09: dbbd5dfbb7a2de2a R10: 00000000000001b6 R11: 0000000000000202 R12: 0000561eef4f38a0 R13: 00007ffc59ba3ee8 R14: 00007ffc59ba42e8 R15: 0000561eb6fb9160