netlink: 'syz-executor.6': attribute type 23 has an invalid length. EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop5): Unrecognized mount option "./file0" or missing value watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:9228] Modules linked in: irq event stamp: 5056059 hardirqs last enabled at (5056058): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (5056059): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1095 softirqs last enabled at (4897630): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (4897633): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 9228 Comm: syz-executor.0 Not tainted 5.10.123 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:stack_trace_consume_entry+0xa/0x160 kernel/stacktrace.c:82 Code: e8 bb 4f 10 00 48 c7 c1 e0 26 28 84 31 d2 be 80 01 00 00 48 c7 c7 e0 24 28 84 e9 11 9e 61 00 cc 48 b8 00 00 00 00 00 fc ff df <55> 53 48 89 fb 48 83 c7 10 48 89 fa 48 c1 ea 03 48 83 ec 08 0f b6 RSP: 0018:ffff88806ce09698 EFLAGS: 00000286 RAX: dffffc0000000000 RBX: ffffffff812f51d0 RCX: 1ffff1100d9c1201 RDX: 1ffff1100d9c12dd RSI: ffffffff82a59cb8 RDI: ffff88806ce09758 RBP: ffff88806ce09728 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000030041 R11: 1ffff1100d9c12c1 R12: ffff88806ce09758 R13: 0000000000000000 R14: ffff88804c0e1980 R15: 0000000000000170 FS: 00007fa7b141c700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005622ba709380 CR3: 000000004c05c000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x73/0xf0 arch/x86/kernel/stacktrace.c:27 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:461 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x13b/0x350 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] __kmalloc_node_track_caller+0x1a6/0x3f0 mm/slub.c:4496 __kmalloc_reserve net/core/skbuff.c:142 [inline] __alloc_skb+0xb1/0x620 net/core/skbuff.c:210 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:446 netdev_alloc_skb include/linux/skbuff.h:2826 [inline] dev_alloc_skb include/linux/skbuff.h:2839 [inline] __ieee80211_beacon_get+0x3af/0x13a0 net/mac80211/tx.c:4874 ieee80211_beacon_get_tim+0x88/0x900 net/mac80211/tx.c:4988 ieee80211_beacon_get include/net/mac80211.h:4912 [inline] mac80211_hwsim_beacon_tx+0x111/0x8f0 drivers/net/wireless/mac80211_hwsim.c:1736 __iterate_interfaces+0x1f0/0x530 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x72/0x180 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xcd/0x1c0 drivers/net/wireless/mac80211_hwsim.c:1789 __run_hrtimer kernel/time/hrtimer.c:1583 [inline] __hrtimer_run_queues+0x5e8/0xb50 kernel/time/hrtimer.c:1647 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1664 __do_softirq+0x1b8/0x867 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1095 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:trace_mm_page_free include/trace/events/kmem.h:152 [inline] RIP: 0010:trace_mm_page_free include/trace/events/kmem.h:152 [inline] RIP: 0010:free_pages_prepare mm/page_alloc.c:1212 [inline] RIP: 0010:__free_pages_ok+0x533/0xd70 mm/page_alloc.c:1521 Code: 8b 7f 08 44 89 e2 48 89 ee e8 d9 a5 f6 ff 65 ff 0d 22 da 9d 7e e9 50 fb ff ff 4c 8d 7d 30 e9 f3 fb ff ff 65 ff 05 0d da 9d 7e <48> c7 c0 40 1e 45 85 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 RSP: 0018:ffff8880495678c0 EFLAGS: 00000203 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81649097 RDX: fffffbfff0a8df2a RSI: 0000000000000008 RDI: ffffffff8546f948 RBP: ffffea0001102100 R08: 0000000000000000 R09: ffffffff8546f94f R10: fffffbfff0a8df29 R11: 0000000000000001 R12: 0000000000000001 R13: ffffea0001102108 R14: ffffffff80000000 R15: 0000000000000000 qlink_free mm/kasan/quarantine.c:151 [inline] qlist_free_all+0x59/0xd0 mm/kasan/quarantine.c:170 quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0x9e/0xd0 mm/kasan/common.c:442 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] kmem_cache_alloc_node+0x14b/0x370 mm/slub.c:2932 __alloc_skb+0x6d/0x620 net/core/skbuff.c:198 alloc_skb include/linux/skbuff.h:1094 [inline] alloc_uevent_skb+0x7b/0x210 lib/kobject_uevent.c:290 uevent_net_broadcast_tagged lib/kobject_uevent.c:351 [inline] kobject_uevent_net_broadcast lib/kobject_uevent.c:412 [inline] kobject_uevent_env+0xcb4/0xf90 lib/kobject_uevent.c:593 __kobject_del+0x278/0x320 lib/kobject.c:617 kobject_cleanup lib/kobject.c:696 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x215/0x270 lib/kobject.c:753 net_rx_queue_update_kobjects+0x370/0x470 net/core/net-sysfs.c:1083 remove_queue_kobjects net/core/net-sysfs.c:1805 [inline] netdev_unregister_kobject+0x152/0x280 net/core/net-sysfs.c:1959 rollback_registered_many+0xba1/0x1280 net/core/dev.c:9589 rollback_registered net/core/dev.c:9607 [inline] unregister_netdevice_queue+0x1fd/0x420 net/core/dev.c:10752 unregister_netdevice include/linux/netdevice.h:2869 [inline] __tun_detach+0xfa8/0x1240 drivers/net/tun.c:681 tun_detach drivers/net/tun.c:698 [inline] tun_chr_close+0xc4/0x180 drivers/net/tun.c:3451 __fput+0x285/0x980 fs/file_table.c:281 task_work_run+0xe2/0x1a0 kernel/task_work.c:151 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0x155/0x160 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x38/0x230 kernel/entry/common.c:266 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fa7b3ea6b19 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:00007fa7b141c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000124 RAX: 0000000000000004 RBX: 00007fa7b3fb9f60 RCX: 00007fa7b3ea6b19 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005 RBP: 00007fa7b3f00f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd7ac0102f R14: 00007fa7b141c300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline] NMI backtrace for cpu 1 skipped: idling at default_idle+0xe/0x10 arch/x86/kernel/process.c:689 hpet: Lost 8 RTC interrupts netlink: 'syz-executor.3': attribute type 23 has an invalid length. netlink: 'syz-executor.6': attribute type 23 has an invalid length. ---------------- Code disassembly (best guess): 0: e8 bb 4f 10 00 callq 0x104fc0 5: 48 c7 c1 e0 26 28 84 mov $0xffffffff842826e0,%rcx c: 31 d2 xor %edx,%edx e: be 80 01 00 00 mov $0x180,%esi 13: 48 c7 c7 e0 24 28 84 mov $0xffffffff842824e0,%rdi 1a: e9 11 9e 61 00 jmpq 0x619e30 1f: cc int3 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 55 push %rbp <-- trapping instruction 2b: 53 push %rbx 2c: 48 89 fb mov %rdi,%rbx 2f: 48 83 c7 10 add $0x10,%rdi 33: 48 89 fa mov %rdi,%rdx 36: 48 c1 ea 03 shr $0x3,%rdx 3a: 48 83 ec 08 sub $0x8,%rsp 3e: 0f .byte 0xf 3f: b6 .byte 0xb6