kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 4117 Comm: syzkaller309595 Not tainted 4.15.0+ #308 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kasan: CONFIG_KASAN_INLINE enabled RIP: 0010:ip6t_do_table+0x132d/0x1a30 net/ipv6/netfilter/ip6_tables.c:355 kasan: GPF could be caused by NULL-ptr deref or user memory access RSP: 0018:ffff8801db407138 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8801b6f6b240 RCX: ffffffff84dbfc11 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff8801b6f6b39e RBP: ffff8801db407380 R08: 1ffff1003b680dce R09: 0000000000000000 R10: 00000000000000d0 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8801b6f6b310 FS: 0000000000000000(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000006d90a8 CR3: 0000000006a22006 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6table_filter_hook+0x65/0x80 net/ipv6/netfilter/ip6table_filter.c:41 nf_hook_entry_hookfn include/linux/netfilter.h:120 [inline] nf_hook_slow+0xba/0x1a0 net/netfilter/core.c:483 nf_hook.constprop.37+0x3f6/0x830 include/linux/netfilter.h:243 NF_HOOK include/linux/netfilter.h:286 [inline] mld_sendpack+0x6c2/0xe70 net/ipv6/mcast.c:1658 mld_send_cr net/ipv6/mcast.c:1954 [inline] mld_ifc_timer_expire+0x3d9/0x770 net/ipv6/mcast.c:2451 call_timer_fn+0x228/0x820 kernel/time/timer.c:1326 expire_timers kernel/time/timer.c:1363 [inline] __run_timers+0x7ee/0xb70 kernel/time/timer.c:1666 run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1692 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 invoke_softirq kernel/softirq.c:365 [inline] irq_exit+0x1cc/0x200 kernel/softirq.c:405 exiting_irq arch/x86/include/asm/apic.h:541 [inline] smp_apic_timer_interrupt+0x16b/0x700 arch/x86/kernel/apic/apic.c:1052 apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:829 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:777 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x5e/0xba kernel/locking/spinlock.c:184 RSP: 0018:ffff8801b534f2f0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff12 RAX: dffffc0000000000 RBX: 0000000000000282 RCX: 0000000000000000 RDX: 1ffffffff0d592cd RSI: 0000000000000001 RDI: 0000000000000282 RBP: ffff8801b534f300 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff88207b88 R13: 1ffff10036a69e66 R14: ffff8801b6a0a5c0 R15: 000000000007c3c0 debug_object_activate+0x307/0x730 lib/debugobjects.c:458 debug_object_activate+0x404/0x730 lib/debugobjects.c:473 debug_rcu_head_queue kernel/rcu/rcu.h:129 [inline] __call_rcu.constprop.67+0xf2/0xef0 kernel/rcu/tree.c:3021 call_rcu_sched+0x12/0x20 kernel/rcu/tree.c:3100 file_free fs/file_table.c:55 [inline] __fput+0x510/0x7e0 fs/file_table.c:226 ____fput+0x15/0x20 fs/file_table.c:243 task_work_run+0x199/0x270 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x9bb/0x1ad0 kernel/exit.c:865 do_group_exit+0x149/0x400 kernel/exit.c:968 SYSC_exit_group kernel/exit.c:979 [inline] SyS_exit_group+0x1d/0x20 kernel/exit.c:977 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x44bd08 RSP: 002b:00007ffd15bba648 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000044bd08 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 RBP: 00000000004cc7c8 R08: 00000000000000e7 R09: ffffffffffffffd4 R10: 000000002015ac60 R11: 0000000000000246 R12: 0000000000000001 R13: 00000000006df180 R14: 0000000000000000 R15: 0000000000000000 Code: 41 f6 87 83 00 00 00 04 75 37 e8 3f 01 95 fc 8b 85 14 fe ff ff 48 8b b5 50 fe ff ff 4c 8d 2c c6 44 8d 60 01 4c 89 e8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 26 03 00 00 4d 89 7d 00 44 89 a5 14 fe ff RIP: ip6t_do_table+0x132d/0x1a30 net/ipv6/netfilter/ip6_tables.c:355 RSP: ffff8801db407138 general protection fault: 0000 [#2] SMP KASAN ---[ end trace 56b6e9b8c63311a7 ]--- Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: