watchdog: BUG: soft lockup - CPU#0 stuck for 25s! [syz-executor.0:16597] Modules linked in: irq event stamp: 3022633 hardirqs last enabled at (3022632): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3022633): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3020178): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3020199): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 16597 Comm: syz-executor.0 Not tainted 6.13.0-rc3-next-20241220 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_access_ok+0x2a/0x1d0 Code: 48 b8 00 00 00 00 00 fc ff df 41 56 41 55 41 54 49 89 d4 48 89 fa 55 48 c1 ea 03 48 89 f5 53 48 89 fb 48 83 ec 08 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e 4b 01 00 00 8b 0b 85 c9 74 65 48 b8 00 00 RSP: 0018:ffff88806ce08f70 EFLAGS: 00000282 RAX: 0000000000000000 RBX: ffff88806ce09018 RCX: ffffffff86839f2a RDX: 1ffff1100d9c1203 RSI: ffff88806ce092a0 RDI: ffff88806ce09018 RBP: ffff88806ce092a0 R08: ffffffff86839f2e R09: ffff88806ce09058 R10: 000000000003aab6 R11: 0000000000022ad3 R12: 0000000000000008 R13: ffff88806ce09060 R14: ffff88806ce092a8 R15: ffff88806ce09018 FS: 00007f3828dbb700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000bd72000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0xa5c/0x2490 arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 set_track_prepare+0x36/0x70 __alloc_object+0xf4/0x270 __create_object+0x1d/0x80 __kmalloc_noprof+0x37e/0x4b0 ieee802_11_parse_elems_full+0xec/0x15a0 ieee80211_inform_bss+0xf4/0x10b0 cfg80211_inform_single_bss_data+0x801/0x1c70 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x6a0 ieee80211_bss_info_update+0x2f6/0xa90 ieee80211_scan_rx+0x474/0xac0 ieee80211_rx_list+0x1e38/0x2840 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 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:__slab_free+0x7a/0x310 Code: 89 2c 02 89 c8 c1 e8 1f 4d 85 ed 66 89 5c 24 58 41 89 c6 41 0f 94 c2 66 85 db 74 05 45 84 d2 74 05 45 84 f6 74 42 41 8b 7f 08 <4c> 8b 4c 24 58 4c 89 ea 4c 89 e6 4c 8b 44 24 20 e8 c1 9d ff ff 84 RSP: 0018:ffff8880371b7bf0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 000000000010000b RCX: 000000000010000c RDX: ffff888015b50000 RSI: ffffea000056d400 RDI: 0000000000089008 RBP: ffff8880371b7c90 R08: 0000000000000001 R09: ffffffff81abe3eb R10: ffffea000056d400 R11: 0000000000000000 R12: ffffea000056d400 R13: ffff888015b53000 R14: 0000000000000000 R15: ffff888008c41dc0 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 fcntl_dirnotify+0x267/0xb50 do_fcntl+0xf4e/0x1450 __x64_sys_fcntl+0x162/0x1f0 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f382b845b19 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:00007f3828dbb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000048 RAX: ffffffffffffffda RBX: 00007f382b958f60 RCX: 00007f382b845b19 RDX: 0000000000000002 RSI: 0000000000000402 RDI: 0000000000000005 RBP: 00007f382b89ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcab5707bf R14: 00007f3828dbb300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 7: fc ff df a: 41 56 push %r14 c: 41 55 push %r13 e: 41 54 push %r12 10: 49 89 d4 mov %rdx,%r12 13: 48 89 fa mov %rdi,%rdx 16: 55 push %rbp 17: 48 c1 ea 03 shr $0x3,%rdx 1b: 48 89 f5 mov %rsi,%rbp 1e: 53 push %rbx 1f: 48 89 fb mov %rdi,%rbx 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 4b 01 00 00 jle 0x181 36: 8b 0b mov (%rbx),%ecx 38: 85 c9 test %ecx,%ecx 3a: 74 65 je 0xa1 3c: 48 rex.W 3d: b8 .byte 0xb8