watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.4:8190] Modules linked in: irq event stamp: 2505615 hardirqs last enabled at (2505614): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2505615): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2503316): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2503321): [] irq_exit_rcu+0x94/0xc0 CPU: 0 UID: 0 PID: 8190 Comm: syz-executor.4 Not tainted 6.12.0-rc5-next-20241104 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_is_held_type+0xe3/0x120 Code: 31 c0 44 39 f0 41 0f 94 c0 b8 ff ff ff ff 65 0f c1 05 c9 f9 7e 7b 83 f8 01 75 2e 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 c0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 7b 48 02 00 44 89 c0 e9 RSP: 0018:ffff88806ce09bf8 EFLAGS: 00000282 RAX: 0000000000000001 RBX: 0000000000000006 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffff888015978168 RDI: ffff88800e305db0 RBP: ffff888015978168 R08: 0000000000000001 R09: ffffed100d9c1378 R10: 0000000000000001 R11: 00000000000c33ea R12: ffff88800e305280 R13: ffff88800e305cc0 R14: 00000000ffffffff R15: ffff88800e305db0 FS: 00007f87c413a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555594506c58 CR3: 0000000033af8000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: cfg80211_put_bss+0x1d5/0x280 ieee80211_scan_rx+0x4ae/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+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 86 50 aa fc 48 89 ef e8 8e c3 aa fc 80 e7 02 74 06 e8 54 1e d4 fc fb 65 ff 0d 94 ec 7d 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:ffff8880418a7550 EFLAGS: 00000246 RAX: 0000000000263297 RBX: 0000000000000246 RCX: 1ffffffff0fde6ae RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8485ba2c RBP: ffff888008c4e900 R08: 0000000000000001 R09: fffffbfff0fdc5e9 R10: ffffffff87ee2f4f R11: 00000000000007e0 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888008c4f780 R15: 0000000000000246 __put_partials+0xc4/0x110 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_noprof+0x1f7/0x4b0 kmalloc_array_noprof+0x42/0x70 ext4_find_extent+0x6fe/0x9b0 ext4_ext_map_blocks+0x1cc/0x5ac0 ext4_map_query_blocks+0x82/0x2d0 ext4_map_blocks+0x282/0x14d0 ext4_append+0x1b7/0x540 ext4_init_new_dir+0x262/0x4c0 ext4_mkdir+0x3d2/0xb30 vfs_mkdir+0x291/0x4f0 do_mkdirat+0x1a4/0x320 __x64_sys_mkdir+0xf3/0x140 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f87c6bc3c27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 00 00 00 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:00007f87c4139fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f87c6bc3c27 RDX: 0000000004000000 RSI: 00000000000001ff RDI: 0000000020000100 RBP: 00007f87c413a040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000100 R14: 00007f87c413a000 R15: 0000000000000000 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: 31 c0 xor %eax,%eax 2: 44 39 f0 cmp %r14d,%eax 5: 41 0f 94 c0 sete %r8b 9: b8 ff ff ff ff mov $0xffffffff,%eax e: 65 0f c1 05 c9 f9 7e xadd %eax,%gs:0x7b7ef9c9(%rip) # 0x7b7ef9df 15: 7b 16: 83 f8 01 cmp $0x1,%eax 19: 75 2e jne 0x49 1b: 48 f7 04 24 00 02 00 testq $0x200,(%rsp) 22: 00 23: 74 01 je 0x26 25: fb sti 26: 48 83 c4 08 add $0x8,%rsp * 2a: 44 89 c0 mov %r8d,%eax <-- trapping instruction 2d: 5b pop %rbx 2e: 5d pop %rbp 2f: 41 5c pop %r12 31: 41 5d pop %r13 33: 41 5e pop %r14 35: 41 5f pop %r15 37: e9 7b 48 02 00 jmpq 0x248b7 3c: 44 89 c0 mov %r8d,%eax 3f: e9 .byte 0xe9