watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.4:50272] Modules linked in: irq event stamp: 4150533 hardirqs last enabled at (4150532): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4150533): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4147706): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (4147709): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 50272 Comm: syz-executor.4 Not tainted 6.5.0-rc2-next-20230721 #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 86 41 d7 fc 48 89 ef e8 3e c5 d7 fc 80 e7 02 74 06 e8 a4 45 fd fc fb 65 ff 0d c4 de ac 7b <74> 07 5b 5d e9 33 2a 00 00 0f 1f 44 00 00 5b 5d e9 27 2a 00 00 0f RSP: 0018:ffff88806ce09868 EFLAGS: 00000206 RAX: 00000000003f54f0 RBX: 0000000000000246 RCX: ffffffff812d4b2f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8456ac3c RBP: ffff8880417494e0 R08: 0000000000000001 R09: fffffbfff0efb575 R10: ffffffff877dabaf R11: 0000000000000001 R12: dffffc0000000000 R13: ffff888042278000 R14: ffff8880406ac650 R15: ffff88806ce09d70 FS: 00007f0949d38700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c322000 CR3: 00000000494ac000 CR4: 0000000000350ef0 Call Trace: ieee80211_rx_handlers+0x59af/0x9230 ieee80211_prepare_and_rx_handle+0x218a/0x59c0 ieee80211_rx_for_interface+0x10e/0x200 ieee80211_rx_list+0x1e34/0x2d10 ieee80211_rx_napi+0xde/0x3c0 ieee80211_tasklet_handler+0xd6/0x130 tasklet_action_common.constprop.0+0x267/0x700 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:strlen+0x22/0xa0 Code: 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 89 fd 53 48 c1 ea 03 48 83 ec 08 0f b6 04 02 <48> 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 50 80 7d 00 00 74 3d 48 bb RSP: 0018:ffff888045ce7a70 EFLAGS: 00000282 RAX: 0000000000000000 RBX: 1ffff11008b9cf74 RCX: 0000000000000000 RDX: 1ffffffff090dda8 RSI: ffff88804394e460 RDI: ffffffff8486ed40 RBP: ffffffff8486ed40 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff85d44c17 R11: 1ffff1100d9c69b7 R12: 0000000000000000 R13: 1ffff11008b9cf59 R14: ffff888045ce7b48 R15: ffffffff8550f700 perf_trace_lock_acquire+0xcf/0x500 lock_acquire+0x416/0x4c0 _raw_spin_lock+0x2b/0x40 __mutex_unlock_slowpath+0x18c/0x5e0 __do_sys_perf_event_open+0x1952/0x2ae0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f094c7c2b19 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:00007f0949d38188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f094c8d5f60 RCX: 00007f094c7c2b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007f094c81cf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe5491d23f R14: 00007f0949d38300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- 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 86 41 d7 fc callq 0xfcd74195 f: 48 89 ef mov %rbp,%rdi 12: e8 3e c5 d7 fc callq 0xfcd7c555 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 a4 45 fd fc callq 0xfcfd45c5 21: fb sti 22: 65 ff 0d c4 de ac 7b decl %gs:0x7bacdec4(%rip) # 0x7bacdeed * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 33 2a 00 00 jmpq 0x2a65 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 27 2a 00 00 jmpq 0x2a65 3e: 0f .byte 0xf