FAT-fs (loop0): Can't find a valid FAT filesystem 9pnet_fd: p9_fd_create_unix (4123): problem connecting socket: ./file1: -111 FAT-fs (loop0): bogus number of reserved sectors FAT-fs (loop0): Can't find a valid FAT filesystem watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:4115] Modules linked in: irq event stamp: 5458579 hardirqs last enabled at (5458578): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5458579): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5452804): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (5452807): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 4115 Comm: syz-executor.6 Not tainted 6.4.0-rc2-next-20230518 #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 96 32 de fc 48 89 ef e8 ae ae de fc 80 e7 02 74 06 e8 44 e6 03 fd fb 65 ff 0d f4 52 b4 7b <74> 07 5b 5d e9 23 2a 00 00 0f 1f 44 00 00 5b 5d e9 17 2a 00 00 0f RSP: 0018:ffff88806ce09e30 EFLAGS: 00000206 RAX: 0000000000534a74 RBX: 0000000000000286 RCX: ffffffff812cc83f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff844f39cc RBP: ffff88806ce2b900 R08: 0000000000000001 R09: fffffbfff0ef393d R10: ffffffff8779c9ef R11: 0000000000000001 R12: ffff88804340f280 R13: ffff88806ce2b900 R14: ffff88806ce2bb80 R15: dffffc0000000000 FS: 00007f00b1ede700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2e50c8b9d0 CR3: 0000000041a80000 CR4: 0000000000350ef0 Call Trace: __hrtimer_run_queues+0x4c8/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0x36/0x1a0 Code: 41 57 41 56 41 55 49 89 fd 41 54 49 bc 00 00 00 00 00 fc ff df 55 48 89 f5 53 48 83 ec 08 eb 4d 49 63 86 c0 00 00 00 49 8b 18 <4c> 89 f7 49 29 c0 4c 89 c6 4d 89 c7 e8 19 f1 ff ff 48 89 c1 0f 1f RSP: 0018:ffff888043f0f180 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff888009a33850 RCX: ffff88800844f780 RDX: ffffea00003ba240 RSI: 0000000000000000 RDI: ffffffff81806e23 RBP: 0000000000000000 R08: ffff88800ee89850 R09: fffffbfff0ef393d R10: ffffffff8779c9ef R11: 0000000000000001 R12: dffffc0000000000 R13: ffff888043f0f1c0 R14: ffff88800844f780 R15: ffff88801634d4c0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x390 __kernfs_new_node+0xd4/0x870 kernfs_new_node+0x97/0x120 __kernfs_create_file+0x55/0x350 sysfs_add_file_mode_ns+0x21c/0x440 internal_create_group+0x322/0xb90 internal_create_groups.part.0+0x90/0x140 sysfs_create_groups+0x29/0x50 kobject_add_internal+0x29b/0x9b0 kobject_init_and_add+0x101/0x170 netdev_queue_update_kobjects+0x186/0x450 netdev_register_kobject+0x2f2/0x3b0 register_netdevice+0xd60/0x1530 register_netdev+0x31/0x60 loopback_net_init+0x7a/0x180 ops_init+0xbb/0x6b0 setup_net+0x3d9/0x990 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2b78/0x73b0 kernel_clone+0xeb/0x7d0 __do_sys_clone3+0x1d5/0x250 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f00b4968b19 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:00007f00b1ede188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f00b4a7bf60 RCX: 00007f00b4968b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f00b49c2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc47d0ef7f R14: 00007f00b1ede300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 Bluetooth: hci0: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci6: command 0x0406 tx timeout ---------------- 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 96 32 de fc callq 0xfcde32a5 f: 48 89 ef mov %rbp,%rdi 12: e8 ae ae de fc callq 0xfcdeaec5 17: 80 e7 02 and $0x2,%bh 1a: 74 06 je 0x22 1c: e8 44 e6 03 fd callq 0xfd03e665 21: fb sti 22: 65 ff 0d f4 52 b4 7b decl %gs:0x7bb452f4(%rip) # 0x7bb4531d * 29: 74 07 je 0x32 <-- trapping instruction 2b: 5b pop %rbx 2c: 5d pop %rbp 2d: e9 23 2a 00 00 jmpq 0x2a55 32: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 37: 5b pop %rbx 38: 5d pop %rbp 39: e9 17 2a 00 00 jmpq 0x2a55 3e: 0f .byte 0xf