EXT4-fs warning (device sda): verify_group_input:161: Bad blocks count 0 watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.5:6547] Modules linked in: irq event stamp: 2811093 hardirqs last enabled at (2811092): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2811093): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2798738): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2798741): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 6547 Comm: syz-executor.5 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_get_return_address+0x4e/0xa0 Code: 7e 59 8b 03 85 c0 75 09 31 c0 5b 5d e9 eb 4a 72 03 48 b8 00 00 00 00 00 fc ff df 48 8d 6b 58 48 89 ea 48 c1 ea 03 80 3c 02 00 <75> 36 48 8b 7b 58 e8 e7 7d 0d 00 85 c0 74 cf 48 b8 00 00 00 00 00 RSP: 0018:ffff88806ce090c0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806ce090d8 RCX: 0000000000000001 RDX: 1ffff1100d9c1226 RSI: ffff88806ce09440 RDI: ffff88806ce090d8 RBP: ffff88806ce09130 R08: 0000000000000001 R09: ffff88806ce09118 R10: 000000000003c001 R11: 0000000000023d40 R12: ffff88806ce091a0 R13: 0000000000000000 R14: ffff88803d083700 R15: 0000000000092820 FS: 00007f2aace16700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020003000 CR3: 000000000d0e6000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x9d/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 __kmalloc_noprof+0x37e/0x4b0 cfg80211_inform_single_bss_data+0x4f1/0x1c50 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+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+0x7f/0x310 Code: 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 91 a0 ff ff 84 c0 74 9d 4c 89 RSP: 0018:ffff88803f74f1f0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00000000000d0009 RCX: 00000000000d000a RDX: ffff88803cc2b5c8 RSI: ffffea0000f30ac0 RDI: 0000000000089800 RBP: ffff88803f74f290 R08: 0000000000000001 R09: 00000000000d0009 R10: ffffea0000f30a00 R11: 0000000000000000 R12: ffffea0000f30ac0 R13: ffff88803cc2b250 R14: 0000000000000000 R15: ffff888008c4f780 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 kmem_cache_alloc_noprof+0x300/0x3d0 ext4_init_io_end+0x27/0x180 ext4_do_writepages+0x101d/0x30c0 ext4_writepages+0x2f2/0x700 do_writepages+0x1aa/0x810 filemap_fdatawrite_wbc+0x10b/0x150 __filemap_fdatawrite_range+0xb3/0xf0 file_write_and_wait_range+0xcc/0x140 ext4_sync_file+0x276/0xfc0 vfs_fsync_range+0x13d/0x230 ext4_buffered_write_iter+0x2f3/0x3c0 ext4_file_write_iter+0x95e/0x18e0 vfs_write+0xbdb/0x10a0 ksys_write+0x122/0x240 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2aaf8a0b19 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:00007f2aace16188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f2aaf9b3f60 RCX: 00007f2aaf8a0b19 RDX: 00000000000292e9 RSI: 0000000020000080 RDI: 0000000000000006 RBP: 00007f2aaf8faf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff2039ab3f R14: 00007f2aace16300 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: 7e 59 jle 0x5b 2: 8b 03 mov (%rbx),%eax 4: 85 c0 test %eax,%eax 6: 75 09 jne 0x11 8: 31 c0 xor %eax,%eax a: 5b pop %rbx b: 5d pop %rbp c: e9 eb 4a 72 03 jmpq 0x3724afc 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 48 8d 6b 58 lea 0x58(%rbx),%rbp 1f: 48 89 ea mov %rbp,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 75 36 jne 0x62 <-- trapping instruction 2c: 48 8b 7b 58 mov 0x58(%rbx),%rdi 30: e8 e7 7d 0d 00 callq 0xd7e1c 35: 85 c0 test %eax,%eax 37: 74 cf je 0x8 39: 48 rex.W 3a: b8 00 00 00 00 mov $0x0,%eax