EXT4-fs error (device loop7): ext4_quota_enable:6459: comm syz-executor.7: Bad quota inum: 2566914280, type: 0 EXT4-fs warning (device loop7): ext4_enable_quotas:6504: Failed to enable quota tracking (type=0, err=-117, ino=2566914280). Please run e2fsck to fix. EXT4-fs (loop7): mount failed watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.1:5047] Modules linked in: irq event stamp: 8845407 hardirqs last enabled at (8845406): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (8845407): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (8826132): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (8826139): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 5047 Comm: syz-executor.1 Not tainted 5.10.237 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__memset+0x24/0x40 arch/x86/lib/memset_64.S:39 Code: cc cc cc cc cc cc 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 ed e0 1c 02 66 66 2e 0f 1f 84 00 RSP: 0018:ffff88806ce09650 EFLAGS: 00000216 RAX: 0000000000000000 RBX: ffff88806ce09730 RCX: 000000000000000b RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88806ce096b0 RBP: ffff88800f2acec0 R08: 0000000000000001 R09: ffff88806ce096a8 R10: ffffed100d9c12e0 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88806ce096d0 R14: ffff88800f2acec0 R15: ffff88806ce096a8 FS: 00007f52da559700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005572a4a6d510 CR3: 0000000047484000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: memset include/linux/string.h:377 [inline] __unwind_start+0x2a/0x7e0 arch/x86/kernel/unwind_orc.c:629 unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch_stack_walk+0x5f/0xf0 arch/x86/kernel/stacktrace.c:24 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+0xc9/0xd0 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/0x310 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] kmem_cache_alloc_node+0x169/0x330 mm/slub.c:2932 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:200 __netdev_alloc_skb+0x6e/0x360 net/core/skbuff.c:448 netdev_alloc_skb include/linux/skbuff.h:2855 [inline] dev_alloc_skb include/linux/skbuff.h:2868 [inline] __ieee80211_beacon_get+0x3af/0x1440 net/mac80211/tx.c:4876 ieee80211_beacon_get_tim+0x88/0x9f0 net/mac80211/tx.c:4990 ieee80211_beacon_get include/net/mac80211.h:4912 [inline] mac80211_hwsim_beacon_tx+0x111/0x940 drivers/net/wireless/mac80211_hwsim.c:1740 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1588 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1652 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1669 __do_softirq+0x1b8/0x7c9 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+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:767 [inline] RIP: 0010:mod_objcg_state mm/slab.h:314 [inline] RIP: 0010:memcg_slab_free_hook mm/slab.h:383 [inline] RIP: 0010:memcg_slab_free_hook mm/slab.h:351 [inline] RIP: 0010:do_slab_free mm/slub.c:3105 [inline] RIP: 0010:___cache_free+0x1aa/0x360 mm/slub.c:3156 Code: af 80 00 00 00 0f 85 c3 00 00 00 9c 41 5d fa 41 f7 c5 00 02 00 00 0f 85 5d 01 00 00 44 89 fa 44 89 f6 e8 09 11 02 00 41 55 9d 11 ff 7a 02 85 c0 0f 85 f7 00 00 00 65 ff 0d 32 e1 95 7e e8 9d RSP: 0018:ffff88801ce8f170 EFLAGS: 00000246 RAX: 000000000086ad19 RBX: ffff88800f518780 RCX: 1ffffffff0d0edba RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff816c8f68 RBP: ffff88800fb4a880 R08: 0000000000000001 R09: ffffffff8686c6bf R10: fffffbfff0d0d8d7 R11: 0000000000000001 R12: ffff8880083fb280 R13: 0000000000000246 R14: 0000000000000006 R15: 00000000fffffd78 qlink_free mm/kasan/quarantine.c:151 [inline] qlist_free_all+0x59/0xe0 mm/kasan/quarantine.c:170 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 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/0x310 mm/slub.c:2909 kmem_cache_zalloc include/linux/slab.h:654 [inline] __kernfs_new_node+0xd4/0x860 fs/kernfs/dir.c:635 kernfs_new_node+0x18d/0x250 fs/kernfs/dir.c:711 __kernfs_create_file+0x51/0x350 fs/kernfs/file.c:985 sysfs_add_file_mode_ns+0x221/0x560 fs/sysfs/file.c:306 create_files fs/sysfs/group.c:64 [inline] internal_create_group+0x324/0xb30 fs/sysfs/group.c:149 internal_create_groups.part.0+0x90/0x140 fs/sysfs/group.c:189 internal_create_groups fs/sysfs/group.c:185 [inline] sysfs_create_groups+0x25/0x50 fs/sysfs/group.c:215 device_add_groups drivers/base/core.c:2095 [inline] device_add_attrs drivers/base/core.c:2243 [inline] device_add+0x7a9/0x1c50 drivers/base/core.c:2962 netdev_register_kobject+0x17a/0x3b0 net/core/net-sysfs.c:1997 register_netdevice+0xd73/0x1480 net/core/dev.c:10049 register_netdev+0x2d/0x50 net/core/dev.c:10173 sit_init_net+0x27f/0x520 net/ipv6/sit.c:1916 ops_init+0xbb/0x6b0 net/core/net_namespace.c:156 setup_net+0x2f4/0x900 net/core/net_namespace.c:348 copy_net_ns+0x2c0/0x5d0 net/core/net_namespace.c:518 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x3fb/0x4f0 kernel/nsproxy.c:179 copy_process+0x385b/0x7800 kernel/fork.c:2129 kernel_clone+0xe7/0x980 kernel/fork.c:2506 __do_sys_clone3+0x1e5/0x320 kernel/fork.c:2781 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f52dcfe3b19 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:00007f52da559188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f52dd0f6f60 RCX: 00007f52dcfe3b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000200001c0 RBP: 00007f52dd03df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe5a4ab1af R14: 00007f52da559300 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/0x20 arch/x86/kernel/process.c:711 ---------------- Code disassembly (best guess): 0: cc int3 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: cc int3 6: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) b: 49 89 f9 mov %rdi,%r9 e: 48 89 d1 mov %rdx,%rcx 11: 83 e2 07 and $0x7,%edx 14: 48 c1 e9 03 shr $0x3,%rcx 18: 40 0f b6 f6 movzbl %sil,%esi 1c: 48 b8 01 01 01 01 01 movabs $0x101010101010101,%rax 23: 01 01 01 26: 48 0f af c6 imul %rsi,%rax * 2a: f3 48 ab rep stos %rax,%es:(%rdi) <-- trapping instruction 2d: 89 d1 mov %edx,%ecx 2f: f3 aa rep stos %al,%es:(%rdi) 31: 4c 89 c8 mov %r9,%rax 34: e9 ed e0 1c 02 jmpq 0x21ce126 39: 66 data16 3a: 66 data16 3b: 2e cs 3c: 0f .byte 0xf 3d: 1f (bad) 3e: 84 00 test %al,(%rax)