watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:7437] Modules linked in: irq event stamp: 3435643 hardirqs last enabled at (3435642): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3435643): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3410418): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3410421): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 7437 Comm: syz-executor.6 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+0x26/0x170 Code: 90 90 90 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7 10 48 89 fa 48 c1 ea 03 48 83 ec 08 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e e7 00 00 00 48 8d 7b 08 8b 6b 10 48 b8 00 RSP: 0018:ffff88806ce09058 EFLAGS: 00000292 RAX: 0000000000000000 RBX: ffff88806ce09140 RCX: ffffffff8678c301 RDX: 1ffff1100d9c122a RSI: ffffffff84821f90 RDI: ffff88806ce09150 RBP: ffff88806ce09110 R08: ffffffff8678c3ac R09: ffff88806ce090b8 R10: 000000000003c001 R11: 0000000000007fe9 R12: ffff88806ce09140 R13: 0000000000000000 R14: ffff888040de9b80 R15: ffff88803abe5000 FS: 00007fc4406a8700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0a94002650 CR3: 0000000039ba8000 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_save_free_info+0x3a/0x60 __kasan_slab_free+0x38/0x50 kfree+0x132/0x480 ieee80211_inform_bss+0x7f6/0x10b0 cfg80211_inform_single_bss_data+0x7fe/0x1c50 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x690 ieee80211_bss_info_update+0x2f6/0xa90 ieee80211_scan_rx+0x474/0xac0 ieee80211_rx_list+0x21ec/0x2cf0 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0xb6/0x160 Code: 03 15 d6 ed f1 03 48 8b 72 08 48 89 d1 40 f6 c6 01 0f 85 a1 00 00 00 66 90 80 79 33 f5 ba 00 00 00 00 48 0f 45 ca 48 8b 69 08 63 ff ff ff 48 83 7d 48 00 0f 85 78 ff ff ff f7 45 08 04 02 00 RSP: 0018:ffff88802b1e7a70 EFLAGS: 00000246 RAX: ffff88800a3ed500 RBX: ffff88800a3ed500 RCX: ffffea000028fb00 RDX: 0000000000000000 RSI: ffffea000028fb01 RDI: 0000000000080000 RBP: ffff88800969c500 R08: ffff88800f317000 R09: 000000000010000e R10: ffffea00003cc400 R11: 00000000000007e0 R12: 0000000000000000 R13: ffff88802b1e7aa8 R14: ffff88800f317000 R15: ffff88800f317000 kasan_quarantine_reduce+0x19c/0x230 __kasan_slab_alloc+0x49/0x70 __kmalloc_noprof+0x195/0x4b0 alloc_trace_kprobe+0x37b/0x550 create_local_trace_kprobe+0x73/0x410 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: 0033:0x7fc443132b19 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:00007fc4406a8188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007fc443245f60 RCX: 00007fc443132b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000280 RBP: 00007fc44318cf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd8913fadf R14: 00007fc4406a8300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 process 'syz-executor.7' launched './file1' with NULL argv: empty string added ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: f3 0f 1e fa endbr64 8: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax f: fc ff df 12: 55 push %rbp 13: 53 push %rbx 14: 48 89 fb mov %rdi,%rbx 17: 48 83 c7 10 add $0x10,%rdi 1b: 48 89 fa mov %rdi,%rdx 1e: 48 c1 ea 03 shr $0x3,%rdx 22: 48 83 ec 08 sub $0x8,%rsp 26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax * 2a: 84 c0 test %al,%al <-- trapping instruction 2c: 74 08 je 0x36 2e: 3c 03 cmp $0x3,%al 30: 0f 8e e7 00 00 00 jle 0x11d 36: 48 8d 7b 08 lea 0x8(%rbx),%rdi 3a: 8b 6b 10 mov 0x10(%rbx),%ebp 3d: 48 rex.W 3e: b8 .byte 0xb8