watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.6:15674] Modules linked in: irq event stamp: 2774605 hardirqs last enabled at (2774604): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2774605): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2747810): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2747813): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 15674 Comm: syz-executor.6 Not tainted 6.12.0-next-20241122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xbfb/0x2490 Code: 05 01 e8 b8 90 1e 00 4c 8b 4c 24 08 e9 24 f7 ff ff 48 be 00 00 00 00 00 fc ff df 48 8d 79 02 48 89 f8 48 c1 e8 03 0f b6 14 30 <48> 8d 41 03 49 89 c0 49 c1 e8 03 41 0f b6 34 30 49 89 f8 41 83 e0 RSP: 0018:ffff88806cf09a08 EFLAGS: 00000217 RAX: 1ffffffff0d068bb RBX: 0000000000000002 RCX: ffffffff868345da RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffffffff868345dc RBP: ffff88806cf09ad0 R08: ffffffff868345de R09: ffff88806cf09ab8 R10: 000000000003c001 R11: 00000000000226b3 R12: ffff88806cf09ad8 R13: ffff88806cf09ac0 R14: ffff88806cf09e68 R15: ffff88806cf09a78 FS: 00007f608ab15700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0782ae2718 CR3: 0000000031f82000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3a/0x60 __kasan_slab_free+0x38/0x50 kmem_cache_free+0x138/0x470 rcu_core+0x7c9/0x1790 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:___cache_free+0x70/0xf0 Code: 01 0f 85 80 00 00 00 66 90 41 80 7a 33 f5 b8 00 00 00 00 4c 0f 45 d0 65 48 8b 05 d3 21 7d 7e 48 03 07 48 8b 50 08 4c 39 50 10 <75> 42 8b 4f 28 48 8b 00 48 89 04 0b 48 8d 4a 40 48 8b 37 65 48 0f RSP: 0018:ffff888038ebf9c8 EFLAGS: 00000287 RAX: ffff88806cf3f660 RBX: ffff88803af2a000 RCX: ffffea0000ebca00 RDX: 000000000008d241 RSI: ffff88803af2a000 RDI: ffff888008c42140 RBP: ffff888038ebf9d0 R08: ffff88803a142200 R09: ffffffff818c055b R10: ffffea0000ebca00 R11: 00000000000007e0 R12: 0000000000000000 R13: ffff888038ebfa18 R14: ffff88803af2a000 R15: ffff88803af2a000 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 pcpu_alloc_noprof+0x777/0x11a0 perf_trace_event_init+0x371/0xa30 perf_trace_init+0x1a4/0x2f0 perf_tp_event_init+0xa6/0x120 perf_try_init_event+0x13a/0xc40 perf_event_alloc.part.0+0x10a6/0x3d80 __do_sys_perf_event_open+0x628/0x2b00 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f608d59fb19 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:00007f608ab15188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f608d6b2f60 RCX: 00007f608d59fb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007f608d5f9f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd73b8736f R14: 00007f608ab15300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-next-20241122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x3e/0x80 Code: a4 b1 7e a9 00 01 ff 00 74 27 f6 c4 01 74 1d a9 00 00 0f 00 75 16 a9 00 00 f0 00 74 05 e9 ca 06 35 03 8b 82 ec 14 00 00 85 c0 <75> 05 e9 bb 06 35 03 8b 82 c8 14 00 00 83 f8 02 75 f0 48 8b 8a d0 RSP: 0018:ffff88806ce09d68 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff88806ce3b900 RCX: ffffffff810b7dae RDX: ffffffff85a2a840 RSI: ffffffff810b7db7 RDI: 0000000000000001 RBP: 1ffff1100d9c13b6 R08: 0000000000000001 R09: ffffed100d9c13c3 R10: 0000000000000000 R11: 000000000008b4b9 R12: 0000007ee11ddee9 R13: ffff88806ce3c4d8 R14: ffff88806ce3c438 R15: 0000000000000007 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f479efed1c8 CR3: 0000000018ec8000 CR4: 0000000000350ef0 Call Trace: sched_clock+0x37/0x60 sched_clock_cpu+0x6d/0x4e0 update_rq_clock+0xd2/0x6e0 sched_balance_update_blocked_averages+0xf5/0x17a0 sched_balance_softirq+0xc6/0x150 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d e9 b0 3d 00 0f 1f 44 00 00 fb f4 e9 7c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85a07e10 EFLAGS: 00000206 RAX: 00000000001a1171 RBX: 0000000000000000 RCX: ffffffff8484caf7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b10ea RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6cba R10: ffff88806ce365d3 R11: 0000000000000000 R12: ffffffff863f9410 R13: 1ffffffff0b40fc7 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 rest_init+0x164/0x290 start_kernel+0x40d/0x530 x86_64_start_reservations+0x18/0x30 x86_64_start_kernel+0xcb/0xe0 common_startup_64+0x12c/0x138 audit: type=1400 audit(1732293544.904:15): avc: denied { block_suspend } for pid=15887 comm="syz-executor.6" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 01 e8 add %ebp,%eax 2: b8 90 1e 00 4c mov $0x4c001e90,%eax 7: 8b 4c 24 08 mov 0x8(%rsp),%ecx b: e9 24 f7 ff ff jmpq 0xfffff734 10: 48 be 00 00 00 00 00 movabs $0xdffffc0000000000,%rsi 17: fc ff df 1a: 48 8d 79 02 lea 0x2(%rcx),%rdi 1e: 48 89 f8 mov %rdi,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 0f b6 14 30 movzbl (%rax,%rsi,1),%edx * 29: 48 8d 41 03 lea 0x3(%rcx),%rax <-- trapping instruction 2d: 49 89 c0 mov %rax,%r8 30: 49 c1 e8 03 shr $0x3,%r8 34: 41 0f b6 34 30 movzbl (%r8,%rsi,1),%esi 39: 49 89 f8 mov %rdi,%r8 3c: 41 rex.B 3d: 83 .byte 0x83 3e: e0 .byte 0xe0