watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.3:11831] Modules linked in: irq event stamp: 3106243 hardirqs last enabled at (3106242): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3106243): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3105014): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3105033): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 11831 Comm: syz-executor.3 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:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 f6 f1 a5 fc 48 89 ef e8 7e 60 a6 fc 80 e7 02 74 06 e8 b4 77 cf fc fb 65 ff 0d 54 5b 59 7b <74> 07 5b 5d e9 a3 1e 00 00 0f 1f 44 00 00 5b 5d e9 97 1e 00 00 0f RSP: 0018:ffff88806ce09ea0 EFLAGS: 00000206 RAX: 00000000002f6566 RBX: 0000000000000246 RCX: 1ffffffff0fe1cf9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84aa4bac RBP: ffff88800bf29628 R08: 0000000000000001 R09: fffffbfff0fdfbe9 R10: ffffffff87efdf4f R11: 0000000000000001 R12: ffff88803f57edc0 R13: ffff88800bf29628 R14: ffff88800bf29610 R15: ffff88800bf295e8 FS: 00007fde6695f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1b1ef3b018 CR3: 0000000017c8a000 CR4: 0000000000350ef0 Call Trace: skb_dequeue+0x129/0x180 ieee80211_handle_queued_frames+0x3b/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 04 c6 ab ff 4d 85 ed 74 06 e8 ca 4b 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:ffff8880401feb90 EFLAGS: 00000246 RAX: 00000000002f6107 RBX: ffffea00004c2100 RCX: 1ffffffff0fe1cf9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a47796 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdfbe9 R10: ffffffff87efdf4f R11: 0000000000000000 R12: ffff88806ce40390 R13: 0000000000000200 R14: 0000000000000000 R15: ffff888013084b90 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 __kmalloc_noprof+0x37e/0x4b0 kmalloc_array_noprof+0x42/0x70 ext4_find_extent+0x6fe/0x9b0 ext4_ext_map_blocks+0x1ca/0x5b10 ext4_map_blocks+0x3f1/0x1500 ext4_do_writepages+0x1a40/0x30d0 ext4_writepages+0x2f2/0x700 do_writepages+0x1aa/0x810 filemap_fdatawrite_wbc+0x10b/0x150 __filemap_fdatawrite_range+0xb3/0xf0 filemap_write_and_wait_range.part.0+0x89/0x110 kiocb_invalidate_pages+0xe4/0x180 __iomap_dio_rw+0xef9/0x1cf0 iomap_dio_rw+0x40/0xa0 ext4_file_write_iter+0xd7f/0x18e0 vfs_write+0xbe2/0x10b0 ksys_write+0x122/0x240 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fde693e9b19 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:00007fde6695f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fde694fcf60 RCX: 00007fde693e9b19 RDX: 0000000000140000 RSI: 0000000020000200 RDI: 0000000000000003 RBP: 00007fde69443f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcf2abaabf R14: 00007fde6695f300 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), 1 bytes skipped: 0: 18 53 48 sbb %dl,0x48(%rbx) 3: 89 f3 mov %esi,%ebx 5: 48 8b 74 24 10 mov 0x10(%rsp),%rsi a: e8 f6 f1 a5 fc callq 0xfca5f205 f: 48 89 ef mov %rbp,%rdi 12: e8 7e 60 a6 fc callq 0xfca66095 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 b4 77 cf fc callq 0xfccf77d5 21: fb sti 22: 65 ff 0d 54 5b 59 7b decl %gs:0x7b595b54(%rip) # 0x7b595b7d * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 a3 1e 00 00 jmpq 0x1ed5 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 97 1e 00 00 jmpq 0x1ed5 3e: 0f .byte 0xf