watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.0:13062] Modules linked in: irq event stamp: 2900975 hardirqs last enabled at (2900974): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2900975): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2885682): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2885691): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 13062 Comm: syz-executor.0 Not tainted 6.13.0-rc3-next-20241218 #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 a6 50 a6 fc 48 89 ef e8 0e bf a6 fc 80 e7 02 74 06 e8 34 df cf fc fb 65 ff 0d 84 bc 59 7b <74> 07 5b 5d e9 93 1e 00 00 0f 1f 44 00 00 5b 5d e9 87 1e 00 00 0f RSP: 0018:ffff88806cf09ea0 EFLAGS: 00000206 RAX: 00000000002c4334 RBX: 0000000000000246 RCX: 1ffffffff0fe1b0a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84a9ea7c RBP: ffff88803e299628 R08: 0000000000000001 R09: fffffbfff0fdf9e1 R10: ffffffff87efcf0f R11: 0000000000000001 R12: ffff88804a617c80 R13: ffff88803e299628 R14: ffff88803e299610 R15: ffff88803e2995e8 FS: 00007fe9ca9ba700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2e729000 CR3: 000000004a56e000 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 b4 d5 ab ff 4d 85 ed 74 06 e8 4a 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:ffff888016be78b0 EFLAGS: 00000286 RAX: 00000000002c0839 RBX: ffffea0000ff5c00 RCX: 1ffffffff0fe1b0a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a46566 RBP: ffff888009404140 R08: 0000000000000001 R09: fffffbfff0fdf9e1 R10: ffffffff87efcf0f R11: 0000000000000000 R12: ffff88806cf42080 R13: 0000000000000200 R14: ffffea0000f23a00 R15: ffff88803fd74400 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 proc_reg_open+0x20f/0x5a0 do_dentry_open+0x71c/0x1420 vfs_open+0x82/0x3f0 path_openat+0x1cfa/0x2990 do_filp_open+0x1e9/0x450 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe9cd3f7a04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007fe9ca9ba060 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fe9cd557f60 RCX: 00007fe9cd3f7a04 RDX: 0000000000000002 RSI: 00007fe9ca9ba0f0 RDI: 00000000ffffff9c RBP: 00007fe9ca9ba0f0 R08: 0000000000000000 R09: 00007fe9ca9b9f70 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 00007fff23214d0f R14: 00007fe9ca9ba300 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), 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 a6 50 a6 fc callq 0xfca650b5 f: 48 89 ef mov %rbp,%rdi 12: e8 0e bf a6 fc callq 0xfca6bf25 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 34 df cf fc callq 0xfccfdf55 21: fb sti 22: 65 ff 0d 84 bc 59 7b decl %gs:0x7b59bc84(%rip) # 0x7b59bcad * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 93 1e 00 00 jmpq 0x1ec5 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 87 1e 00 00 jmpq 0x1ec5 3e: 0f .byte 0xf