watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.4:10769] Modules linked in: irq event stamp: 3466987 hardirqs last enabled at (3466986): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3466987): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3415192): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3415195): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 10769 Comm: syz-executor.4 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x0/0x170 Code: 49 c7 c4 ea ff ff ff eb c7 e8 bc 98 43 03 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7 RSP: 0018:ffff88806ce096d0 EFLAGS: 00000286 RAX: ffffffff818b0799 RBX: ffffffff813e8f70 RCX: ffffffff86832101 RDX: 1ffff1100d9c12e6 RSI: ffffffff818b0799 RDI: ffff88806ce097a0 RBP: ffff88806ce09770 R08: ffffffff868321c2 R09: ffff88806ce09718 R10: 000000000003c001 R11: 0000000000023a45 R12: ffff88806ce097a0 R13: 0000000000000000 R14: ffff8880133d1b80 R15: 0000000000000820 FS: 00007f1c6f7ed700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000001a954000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_node_noprof+0x14c/0x3e0 __alloc_skb+0x2ad/0x370 __netdev_alloc_skb+0x7a/0x7a0 __ieee80211_beacon_get+0x3f4/0xfc0 ieee80211_beacon_get_tim+0xa6/0x280 mac80211_hwsim_beacon_tx+0x49b/0x950 __iterate_interfaces+0x2cb/0x5d0 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:static_call_text_reserved+0x7d/0x420 Code: 8b 35 ab 3d dd 04 48 3d 80 4a 80 85 0f 83 00 01 00 00 49 bf 00 00 00 00 00 fc ff df 48 89 c5 eb 16 e8 a7 cc ef ff 48 83 c5 08 <48> 81 fd 80 4a 80 85 0f 83 db 00 00 00 e8 91 cc ef ff 44 89 f6 bf RSP: 0018:ffff88802ffb7a98 EFLAGS: 00000282 RAX: 0000000000009996 RBX: ffffffff81000050 RCX: ffffc900007f7000 RDX: 0000000000040000 RSI: ffffffff8161af79 RDI: 0000000000000006 RBP: ffffffff857fef38 R08: 0000000000000000 R09: fffffbfff0c7e4e9 R10: ffffffff81000050 R11: 1ffff1100d9c7759 R12: ffffffff81000050 R13: ffffffff82fa880c R14: 0000000000000003 R15: dffffc0000000000 register_kprobe+0xb63/0x15f0 __register_trace_kprobe+0x26a/0x2d0 create_local_trace_kprobe+0x217/0x410 perf_kprobe_init+0x119/0x210 perf_kprobe_event_init+0xfc/0x1d0 perf_try_init_event+0x13a/0xc40 perf_event_alloc.part.0+0x10a3/0x3c30 __do_sys_perf_event_open+0x4cb/0x2b60 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1c72277b19 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:00007f1c6f7ed188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f1c7238af60 RCX: 00007f1c72277b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280 RBP: 00007f1c722d1f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff435679cf R14: 00007f1c6f7ed300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 loop7: detected capacity change from 0 to 512 EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop7: detected capacity change from 0 to 512 EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop7: detected capacity change from 0 to 512 EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop7: detected capacity change from 0 to 512 EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO Unsupported ieee802154 address type: 0 Unsupported ieee802154 address type: 0 program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO Unsupported ieee802154 address type: 0 program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO Unsupported ieee802154 address type: 0 Unsupported ieee802154 address type: 0 tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' ---------------- Code disassembly (best guess): 0: 49 c7 c4 ea ff ff ff mov $0xffffffffffffffea,%r12 7: eb c7 jmp 0xffffffd0 9: e8 bc 98 43 03 callq 0x34398ca e: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 15: 00 00 00 18: 66 90 xchg %ax,%ax 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: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 35: fc ff df 38: 55 push %rbp 39: 53 push %rbx 3a: 48 89 fb mov %rdi,%rbx 3d: 48 rex.W 3e: 83 .byte 0x83 3f: c7 .byte 0xc7