watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.2:6814] Modules linked in: irq event stamp: 2878653 hardirqs last enabled at (2878652): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2878653): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2875508): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2875529): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 6814 Comm: syz-executor.2 Not tainted 6.12.0-next-20241127 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x6a/0xf0 Code: 89 de 4c 39 e5 77 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 <42> 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 RSP: 0018:ffff88806cf08f50 EFLAGS: 00000216 RAX: 1ffffffff0ce41b7 RBX: ffffffff86720db8 RCX: ffffffff8461290b RDX: 0000000000000000 RSI: ffffffff86bc4636 RDI: ffffffff86720db8 RBP: ffffffff86720db8 R08: ffffffff86bc4636 R09: ffff88806cf09048 R10: 000000000003c001 R11: 00000000000ba4f1 R12: ffffffff86720db8 R13: ffffffff86720db8 R14: ffffffff86720db8 R15: dffffc0000000000 FS: 00007fd16552f700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555614143bc CR3: 000000000dbe0000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0x2b7/0x2490 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+0xf7/0x10b0 cfg80211_inform_single_bss_data+0x7fe/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:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 84 92 ab ff 4d 85 ed 74 06 e8 6a 64 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff8880165c77e0 EFLAGS: 00000246 RAX: 00000000002be087 RBX: ffffea000034d880 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8184a066 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 0000000000000088 R12: ffff88806cf40350 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800d362cb8 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 __kmalloc_cache_noprof+0x149/0x3e0 __iomap_dio_rw+0x271/0x1cf0 iomap_dio_rw+0x40/0xa0 ext4_file_write_iter+0xd7f/0x18e0 vfs_write+0xbdb/0x10a0 ksys_write+0x122/0x240 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd167fb9b19 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:00007fd16552f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fd1680ccf60 RCX: 00007fd167fb9b19 RDX: 0000000000140000 RSI: 0000000020000200 RDI: 0000000000000003 RBP: 00007fd168013f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd4e63f24f R14: 00007fd16552f300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 89 de mov %ebx,%esi 2: 4c 39 e5 cmp %r12,%rbp 5: 77 4d ja 0x54 7: 4c 89 e0 mov %r12,%rax a: 48 29 e8 sub %rbp,%rax d: 48 89 c2 mov %rax,%rdx 10: 48 c1 e8 3f shr $0x3f,%rax 14: 48 c1 fa 02 sar $0x2,%rdx 18: 48 01 d0 add %rdx,%rax 1b: 48 d1 f8 sar %rax 1e: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx <-- trapping instruction 2f: 48 89 d8 mov %rbx,%rax 32: 83 e0 07 and $0x7,%eax 35: 83 c0 03 add $0x3,%eax 38: 38 d0 cmp %dl,%al 3a: 7c 04 jl 0x40 3c: 84 d2 test %dl,%dl 3e: 75 50 jne 0x90