watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.4:29207] Modules linked in: irq event stamp: 2009485 hardirqs last enabled at (2009484): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2009485): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2004774): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2004787): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 29207 Comm: syz-executor.4 Not tainted 6.13.0-rc1-next-20241204 #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 4b a9 fc 48 89 ef e8 5e ba a9 fc 80 e7 02 74 06 e8 54 0c d3 fc fb 65 ff 0d 54 cf 7c 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: 00000000001ea98a RBX: 0000000000000246 RCX: 1ffffffff0fe02c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8486d7ac RBP: ffff8880383a1628 R08: 0000000000000001 R09: fffffbfff0fde1e9 R10: ffffffff87ef0f4f R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880383a1628 R14: ffff8880383a1668 R15: 0000000000000001 FS: 00007f200773f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f01ce94ff48 CR3: 000000002a990000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 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 d4 b5 ab ff 4d 85 ed 74 06 e8 3a 76 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:ffff888039177b90 EFLAGS: 00000246 RAX: 00000000001e9731 RBX: ffffea0000301140 RCX: 1ffffffff0fe02c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81846dc6 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fde1e9 R10: ffffffff87ef0f4f R11: 0000000000000000 R12: ffff88806ce40390 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800c045cb8 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 pcpu_alloc_noprof+0x777/0x11b0 percpu_ref_init+0x37/0x400 ioctx_alloc+0x370/0x1df0 __x64_sys_io_setup+0xc8/0x1f0 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f200a1c9b19 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:00007f200773f188 EFLAGS: 00000246 ORIG_RAX: 00000000000000ce RAX: ffffffffffffffda RBX: 00007f200a2dcf60 RCX: 00007f200a1c9b19 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000373 RBP: 00007f200a223f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa375828f R14: 00007f200773f300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. No source specified No source specified No source specified No source specified No source specified ---------------- 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 4b a9 fc callq 0xfca94c05 f: 48 89 ef mov %rbp,%rdi 12: e8 5e ba a9 fc callq 0xfca9ba75 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 54 0c d3 fc callq 0xfcd30c75 21: fb sti 22: 65 ff 0d 54 cf 7c 7b decl %gs:0x7b7ccf54(%rip) # 0x7b7ccf7d * 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