EXT4-fs error (device loop6): ext4_fill_super:4967: inode #2: comm syz-executor.6: iget: special inode unallocated EXT4-fs (loop6): get root inode failed EXT4-fs (loop6): mount failed SELinux: unrecognized netlink message: protocol=6 nlmsg_type=1544 sclass=netlink_xfrm_socket pid=4148 comm=syz-executor.2 watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.1:4149] Modules linked in: irq event stamp: 6811397 hardirqs last enabled at (6811396): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (6811397): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (6803372): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (6803375): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 4149 Comm: syz-executor.1 Not tainted 5.10.234 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:trace_lock_acquire include/trace/events/lock.h:13 [inline] RIP: 0010:lock_acquire+0x88/0x470 kernel/locking/lockdep.c:5537 Code: f1 f1 00 00 c7 40 08 00 00 00 f3 c7 40 0c f3 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 84 24 a8 00 00 00 31 c0 0f 1f 44 00 00 <65> 8b 15 41 c8 da 7e 89 d2 be 08 00 00 00 48 89 d0 48 89 54 24 08 RSP: 0018:ffff88806ce09548 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 1ffff1100d9c12ab RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84ff9a20 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000032042 R11: 1ffff1100d9c12c2 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff84ff9a20 R15: 0000000000000000 FS: 00007f51d4868700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d026000 CR3: 0000000017198000 CR4: 0000000000350ef0 Call Trace: rcu_lock_acquire include/linux/rcupdate.h:303 [inline] rcu_read_lock include/linux/rcupdate.h:717 [inline] __is_insn_slot_addr+0x3f/0x290 kernel/kprobes.c:299 is_kprobe_optinsn_slot include/linux/kprobes.h:336 [inline] kernel_text_address kernel/extable.c:149 [inline] kernel_text_address+0xdf/0x120 kernel/extable.c:120 __kernel_text_address+0x9/0x40 kernel/extable.c:105 unwind_get_return_address arch/x86/kernel/unwind_orc.c:323 [inline] unwind_get_return_address+0x55/0xa0 arch/x86/kernel/unwind_orc.c:318 arch_stack_walk+0x99/0xf0 arch/x86/kernel/stacktrace.c:26 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:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __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:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:196 Code: ff ff ff b8 08 00 00 00 4d 8b 17 49 8b 16 48 0f bd c8 48 63 c9 e9 5e ff ff ff 4c 01 d2 49 89 17 e9 cd fd ff ff 90 48 8b 34 24 <65> 48 8b 14 25 80 6f 02 00 65 8b 05 1c b7 c1 7e a9 00 01 ff 00 74 RSP: 0018:ffff88801736f3e8 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff88800ec94680 RCX: ffffffff833389fd RDX: 0000000000000001 RSI: ffffffff83338a63 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001 R13: ffff88804aa7bc80 R14: ffff88801736f490 R15: dffffc0000000000 nf_hook_slow+0x143/0x1e0 net/netfilter/core.c:583 nf_hook+0x273/0x510 include/linux/netfilter.h:251 NF_HOOK_COND include/linux/netfilter.h:284 [inline] ip6_output+0x4f3/0x7e0 net/ipv6/ip6_output.c:234 dst_output include/net/dst.h:436 [inline] ip6_local_out+0xb4/0x1a0 net/ipv6/output_core.c:161 ip6_send_skb+0x112/0x460 net/ipv6/ip6_output.c:1939 udp_v6_send_skb+0x7aa/0x15b0 net/ipv6/udp.c:1259 udpv6_sendmsg+0x2116/0x2ad0 net/ipv6/udp.c:1560 inet6_sendmsg+0x105/0x140 net/ipv6/af_inet6.c:661 sock_sendmsg_nosec net/socket.c:651 [inline] __sock_sendmsg+0xf2/0x190 net/socket.c:663 ____sys_sendmsg+0x334/0x870 net/socket.c:2378 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432 __sys_sendmmsg+0x195/0x470 net/socket.c:2518 __do_sys_sendmmsg net/socket.c:2547 [inline] __se_sys_sendmmsg net/socket.c:2544 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2544 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f51d7313b19 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:00007f51d4868188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f51d7427020 RCX: 00007f51d7313b19 RDX: 000000000000002f RSI: 0000000020004d00 RDI: 0000000000000003 RBP: 00007f51d736df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc600a68ef R14: 00007f51d4868300 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:706 ---------------- Code disassembly (best guess): 0: f1 icebp 1: f1 icebp 2: 00 00 add %al,(%rax) 4: c7 40 08 00 00 00 f3 movl $0xf3000000,0x8(%rax) b: c7 40 0c f3 f3 f3 f3 movl $0xf3f3f3f3,0xc(%rax) 12: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 19: 00 00 1b: 48 89 84 24 a8 00 00 mov %rax,0xa8(%rsp) 22: 00 23: 31 c0 xor %eax,%eax 25: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) * 2a: 65 8b 15 41 c8 da 7e mov %gs:0x7edac841(%rip),%edx # 0x7edac872 <-- trapping instruction 31: 89 d2 mov %edx,%edx 33: be 08 00 00 00 mov $0x8,%esi 38: 48 89 d0 mov %rdx,%rax 3b: 48 89 54 24 08 mov %rdx,0x8(%rsp)