watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.1:66111] Modules linked in: irq event stamp: 7104627 hardirqs last enabled at (7104626): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7104627): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (7098854): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (7098857): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 66111 Comm: syz-executor.1 Not tainted 6.1.0-rc6-next-20221123 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:_raw_spin_unlock_irqrestore+0x32/0x60 Code: 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 46 c3 ea fc 48 89 ef e8 0e 3b eb fc 80 e7 02 74 06 e8 14 d6 0e fd fb bf 01 00 00 00 19 97 e0 fc 65 8b 05 da 41 c2 7b 85 c0 74 07 5b 5d e9 4b 29 00 RSP: 0018:ffff88806cf09bc8 EFLAGS: 00000202 RAX: 00000000006c686e RBX: 0000000000000202 RCX: ffffffff812b6c4f RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000001 RBP: ffff888036004360 R08: 0000000000000001 R09: ffffffff8763484f R10: fffffbfff0ec6909 R11: 0000000000000001 R12: ffff8880360043f0 R13: ffff8880360043a0 R14: 0000000000000002 R15: ffff888008441c80 FS: 00007fb3f9bf7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555772708 CR3: 000000005f356000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __delete_object+0xb3/0x100 __kmem_cache_free+0x95/0x410 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xba0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:lock_is_held_type+0xfc/0x130 Code: 80 fd 86 84 e8 b5 0e 00 00 b8 ff ff ff ff 65 0f c1 05 70 59 c3 7b 83 f8 01 75 26 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 66 42 02 00 45 31 ed eb RSP: 0018:ffff888061b475e0 EFLAGS: 00000292 RAX: 0000000000000001 RBX: 0000000000000002 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff85608980 R08: 0000000000000000 R09: ffffffff85d11e57 R10: fffffbfff0ba23ca R11: 0000000000000001 R12: ffff88803ba33580 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff88803ba33f08 rcu_read_lock_sched_held+0x42/0x80 lock_release+0x54b/0x750 sk_alloc+0x28f/0x760 __netlink_create+0x63/0x340 __netlink_kernel_create+0x114/0x870 uevent_net_init+0xfb/0x300 ops_init+0xbb/0x680 setup_net+0x40c/0x9d0 copy_net_ns+0x31c/0x760 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x3b7/0x4a0 copy_process+0x29e3/0x7220 kernel_clone+0xeb/0x950 __do_sys_clone3+0x1d9/0x370 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fb3fc681b19 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:00007fb3f9bf7188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fb3fc794f60 RCX: 00007fb3fc681b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007fb3fc6dbf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffea3a2ddf R14: 00007fb3f9bf7300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 9pnet_fd: Insufficient options for proto=fd 9pnet_fd: Insufficient options for proto=fd 9pnet_fd: Insufficient options for proto=fd ---------------- Code disassembly (best guess): 0: 48 83 c7 18 add $0x18,%rdi 4: 53 push %rbx 5: 48 89 f3 mov %rsi,%rbx 8: 48 8b 74 24 10 mov 0x10(%rsp),%rsi d: e8 46 c3 ea fc callq 0xfceac358 12: 48 89 ef mov %rbp,%rdi 15: e8 0e 3b eb fc callq 0xfceb3b28 1a: 80 e7 02 and $0x2,%bh 1d: 74 06 je 0x25 1f: e8 14 d6 0e fd callq 0xfd0ed638 24: fb sti 25: bf 01 00 00 00 mov $0x1,%edi * 2a: e8 19 97 e0 fc callq 0xfce09748 <-- trapping instruction 2f: 65 8b 05 da 41 c2 7b mov %gs:0x7bc241da(%rip),%eax # 0x7bc24210 36: 85 c0 test %eax,%eax 38: 74 07 je 0x41 3a: 5b pop %rbx 3b: 5d pop %rbp 3c: e9 .byte 0xe9 3d: 4b 29 00 rex.WXB sub %rax,(%r8)