watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.5:10098] Modules linked in: irq event stamp: 4977105 hardirqs last enabled at (4977104): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4977105): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4940430): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (4940433): [] __irq_exit_rcu+0xcc/0x110 CPU: 1 PID: 10098 Comm: syz-executor.5 Not tainted 6.2.0-rc6-next-20230130 #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 c9 e5 fc 48 89 ef e8 2e 46 e6 fc 80 e7 02 74 06 e8 f4 06 0b fd fb 65 ff 0d f4 12 bc 7b <74> 07 5b 5d e9 27 28 00 00 0f 1f 44 00 00 5b 5d e9 1b 28 00 00 0f RSP: 0018:ffff88806cf09a48 EFLAGS: 00000202 RAX: 00000000004bf14a RBX: 0000000000000246 RCX: ffffffff812c9d4f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8447768c RBP: ffffffff856d3180 R08: 0000000000000001 R09: ffffffff8769a98f R10: fffffbfff0ed3531 R11: 0000000000000001 R12: 0000000000082820 R13: 0000000000000200 R14: 0000000000000200 R15: 0000000000000000 FS: 00007fab63d38700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f61eb719f64 CR3: 0000000019130000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __kmem_cache_alloc_node+0x1ed/0x310 __kmalloc_node_track_caller+0x43/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb08/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x567/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x50/0x70 Code: 0e 85 c9 74 35 8b 82 0c 14 00 00 85 c0 74 2b 8b 82 e8 13 00 00 83 f8 02 75 20 48 8b 8a f0 13 00 00 8b 92 ec 13 00 00 48 8b 01 <48> 83 c0 01 48 39 c2 76 07 48 89 01 48 89 34 c1 e9 0f 40 fc 02 66 RSP: 0018:ffff88804269f8f8 EFLAGS: 00000246 RAX: 00000000000001c2 RBX: ffff888043b069c0 RCX: ffffc900047f7000 RDX: 0000000000040000 RSI: ffffffff815c52ef RDI: 0000000000000001 RBP: ffff88804269fb70 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000028 R12: dffffc0000000000 R13: ffff88806cf34ca0 R14: 0000000000000000 R15: 0000000000000001 perf_tp_event+0x25f/0x10c0 perf_trace_run_bpf_submit+0xf3/0x190 perf_trace_lock_acquire+0x339/0x500 trace_lock_acquire+0x105/0x1e0 lock_acquire+0x32/0xc0 fs_reclaim_acquire+0x121/0x170 kmem_cache_alloc_lru+0x4b/0x590 alloc_inode+0x178/0x240 new_inode_pseudo+0x17/0x80 create_pipe_files+0x51/0x8c0 do_pipe2+0x96/0x1b0 __x64_sys_pipe2+0x54/0x80 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fab667c2b19 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:00007fab63d38188 EFLAGS: 00000246 ORIG_RAX: 0000000000000125 RAX: ffffffffffffffda RBX: 00007fab668d5f60 RCX: 00007fab667c2b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0 RBP: 00007fab6681cf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd23f2daef R14: 00007fab63d38300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 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 a6 c9 e5 fc callq 0xfce5c9b5 f: 48 89 ef mov %rbp,%rdi 12: e8 2e 46 e6 fc callq 0xfce64645 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 f4 06 0b fd callq 0xfd0b0715 21: fb sti 22: 65 ff 0d f4 12 bc 7b decl %gs:0x7bbc12f4(%rip) # 0x7bbc131d * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 27 28 00 00 jmpq 0x2859 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 1b 28 00 00 jmpq 0x2859 3e: 0f .byte 0xf