IPVS: ftp: loaded support on port[0] = 21 kasan: CONFIG_KASAN_INLINE enabled kobject: 'loop1' (00000000cf605329): kobject_uevent_env kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 28750 Comm: syz-executor0 Not tainted 5.0.0-rc3+ #16 kobject: 'loop1' (00000000cf605329): fill_kobj_path: path = '/devices/virtual/block/loop1' Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fib6_drop_pcpu_from net/ipv6/ip6_fib.c:924 [inline] RIP: 0010:fib6_purge_rt+0x5c9/0x7f0 net/ipv6/ip6_fib.c:960 Code: 0f b6 3d c9 32 86 03 31 ff 44 89 fe e8 b0 17 b0 fa 45 84 ff 0f 84 e3 00 00 00 e8 62 16 b0 fa 49 8d 7e 70 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 b8 01 00 00 48 8d 45 98 4d 8b 7e 70 48 89 c2 48 RSP: 0018:ffff8880429ee958 EFLAGS: 00010202 RAX: 000000000000047c RBX: dffffc0000000000 RCX: ffffc90005a7b000 RDX: 0000000000040000 RSI: ffffffff86d1e88e RDI: 00000000000023e0 RBP: ffff8880429eea58 R08: ffff88808dc9a4c0 R09: ffffed1013d3ca46 R10: ffffed1013d3ca45 R11: ffff88809e9e522f R12: 0000000000000000 R13: ffff88809e9e5200 R14: 0000000000002370 R15: 0000000000000001 FS: 00007fd36cc72700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9390246db8 CR3: 0000000097734000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fib6_del_route net/ipv6/ip6_fib.c:1813 [inline] fib6_del+0xbdb/0x12e0 net/ipv6/ip6_fib.c:1844 fib6_clean_node+0x453/0x660 net/ipv6/ip6_fib.c:2006 fib6_walk_continue+0x4b3/0x8e0 net/ipv6/ip6_fib.c:1928 fib6_walk+0x9d/0x100 net/ipv6/ip6_fib.c:1976 fib6_clean_tree+0x22a/0x340 net/ipv6/ip6_fib.c:2055 __fib6_clean_all+0x216/0x430 net/ipv6/ip6_fib.c:2071 fib6_clean_all+0x2b/0x40 net/ipv6/ip6_fib.c:2082 rt6_sync_down_dev+0x17e/0x1b0 net/ipv6/route.c:4041 rt6_disable_ip+0x80/0x730 net/ipv6/route.c:4046 addrconf_ifdown+0x13e/0x15e0 net/ipv6/addrconf.c:3704 addrconf_notify+0x629/0x25f0 net/ipv6/addrconf.c:3629 notifier_call_chain+0x179/0x380 kernel/notifier.c:93 __raw_notifier_call_chain kernel/notifier.c:394 [inline] raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1739 call_netdevice_notifiers_extack net/core/dev.c:1751 [inline] call_netdevice_notifiers net/core/dev.c:1765 [inline] __dev_notify_flags+0x293/0x470 net/core/dev.c:7607 dev_change_flags+0x10d/0x170 net/core/dev.c:7643 devinet_ioctl+0x1489/0x1d50 net/ipv4/devinet.c:1104 inet_ioctl+0x1fc/0x370 net/ipv4/af_inet.c:954 sock_do_ioctl+0xe2/0x400 net/socket.c:950 sock_ioctl+0x32f/0x6c0 net/socket.c:1074 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x107b/0x17d0 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd36cc71c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099 RDX: 0000000020001300 RSI: 0000000000008914 RDI: 0000000000000003 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd36cc726d4 R13: 00000000004c374b R14: 00000000004d6340 R15: 00000000ffffffff Modules linked in: ---[ end trace 8671d691a0994c33 ]--- RIP: 0010:fib6_drop_pcpu_from net/ipv6/ip6_fib.c:924 [inline] RIP: 0010:fib6_purge_rt+0x5c9/0x7f0 net/ipv6/ip6_fib.c:960 Code: 0f b6 3d c9 32 86 03 31 ff 44 89 fe e8 b0 17 b0 fa 45 84 ff 0f 84 e3 00 00 00 e8 62 16 b0 fa 49 8d 7e 70 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 b8 01 00 00 48 8d 45 98 4d 8b 7e 70 48 89 c2 48 RSP: 0018:ffff8880429ee958 EFLAGS: 00010202 RAX: 000000000000047c RBX: dffffc0000000000 RCX: ffffc90005a7b000 RDX: 0000000000040000 RSI: ffffffff86d1e88e RDI: 00000000000023e0 RBP: ffff8880429eea58 R08: ffff88808dc9a4c0 R09: ffffed1013d3ca46 R10: ffffed1013d3ca45 R11: ffff88809e9e522f R12: 0000000000000000 R13: ffff88809e9e5200 R14: 0000000000002370 R15: 0000000000000001 FS: 00007fd36cc72700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9390246db8 CR3: 0000000097734000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400