netlink: 16 bytes leftover after parsing attributes in process `syz-executor0'. ------------[ cut here ]------------ AppArmor WARN apparmor_secid_to_secctx: ((!secdata)): WARNING: CPU: 0 PID: 17764 at security/apparmor/secid.c:82 apparmor_secid_to_secctx+0x2b1/0x2f0 security/apparmor/secid.c:82 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 17764 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #96 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 kobject: 'rx-0' (000000005b3bb319): fill_kobj_path: path = '/devices/virtual/net/gre0/queues/rx-0' panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 kobject: 'loop4' (00000000d5084278): kobject_uevent_env report_bug+0x254/0x2d0 lib/bug.c:186 kobject: 'tx-0' (00000000e372a4a8): kobject_add_internal: parent: 'queues', set: 'queues' fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296 kobject: 'loop4' (00000000d5084278): fill_kobj_path: path = '/devices/virtual/block/loop4' do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993 kobject: 'tx-0' (00000000e372a4a8): kobject_uevent_env kobject: 'tx-0' (00000000e372a4a8): fill_kobj_path: path = '/devices/virtual/net/gre0/queues/tx-0' RIP: 0010:apparmor_secid_to_secctx+0x2b1/0x2f0 security/apparmor/secid.c:82 Code: c7 c7 00 67 3f 88 e8 8e 4f f4 fd 0f 0b e9 6c fe ff ff e8 c2 64 2a fe 48 c7 c6 40 68 3f 88 48 c7 c7 60 66 3f 88 e8 6f 4f f4 fd <0f> 0b e9 3f fe ff ff 48 89 df e8 90 c8 6d fe e9 ed fe ff ff bb f4 RSP: 0018:ffff88019940ed10 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88019940eed0 RCX: ffffc90002051000 RDX: 000000000001aef0 RSI: ffffffff8164f825 RDI: 0000000000000005 RBP: ffff88019940ed30 R08: ffff8801a00b8400 R09: ffffed003b5c3ee2 kobject: 'gretap0' (000000004237f2f3): kobject_add_internal: parent: 'net', set: 'devices' R10: ffffed003b5c3ee2 R11: ffff8801dae1f717 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88019940eed0 security_secid_to_secctx+0x64/0xc0 security/security.c:1314 ctnetlink_secctx_size net/netfilter/nf_conntrack_netlink.c:621 [inline] ctnetlink_nlmsg_size net/netfilter/nf_conntrack_netlink.c:659 [inline] ctnetlink_conntrack_event+0x303/0x1470 net/netfilter/nf_conntrack_netlink.c:706 kobject: 'gretap0' (000000004237f2f3): kobject_uevent_env kobject: 'gretap0' (000000004237f2f3): fill_kobj_path: path = '/devices/virtual/net/gretap0' nf_conntrack_eventmask_report+0x528/0x8c0 net/netfilter/nf_conntrack_ecache.c:151 kobject: 'queues' (000000005f818fae): kobject_add_internal: parent: 'gretap0', set: '' nf_conntrack_event_report include/net/netfilter/nf_conntrack_ecache.h:112 [inline] nf_ct_delete+0x324/0x590 net/netfilter/nf_conntrack_core.c:601 kobject: 'queues' (000000005f818fae): kobject_uevent_env nf_ct_iterate_cleanup+0x47a/0x5c0 net/netfilter/nf_conntrack_core.c:1892 kobject: 'queues' (000000005f818fae): kobject_uevent_env: filter function caused the event to drop! nf_ct_iterate_cleanup_net+0x237/0x2d0 net/netfilter/nf_conntrack_core.c:1974 ctnetlink_flush_conntrack net/netfilter/nf_conntrack_netlink.c:1226 [inline] ctnetlink_del_conntrack+0x661/0x840 net/netfilter/nf_conntrack_netlink.c:1258 kobject: 'rx-0' (0000000015c13cb4): kobject_add_internal: parent: 'queues', set: 'queues' nfnetlink_rcv_msg+0xdd3/0x10c0 net/netfilter/nfnetlink.c:228 kobject: 'rx-0' (0000000015c13cb4): kobject_uevent_env kobject: 'rx-0' (0000000015c13cb4): fill_kobj_path: path = '/devices/virtual/net/gretap0/queues/rx-0' netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 kobject: 'tx-0' (00000000785f8cca): kobject_add_internal: parent: 'queues', set: 'queues' nfnetlink_rcv+0x1c0/0x4d0 net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343 kobject: 'tx-0' (00000000785f8cca): kobject_uevent_env netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908 kobject: 'tx-0' (00000000785f8cca): fill_kobj_path: path = '/devices/virtual/net/gretap0/queues/tx-0' sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2114 kobject: 'erspan0' (00000000ba857b77): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'erspan0' (00000000ba857b77): kobject_uevent_env kobject: 'erspan0' (00000000ba857b77): fill_kobj_path: path = '/devices/virtual/net/erspan0' __sys_sendmsg+0x11d/0x280 net/socket.c:2152 kobject: 'queues' (00000000fc83b4f2): kobject_add_internal: parent: 'erspan0', set: '' __do_sys_sendmsg net/socket.c:2161 [inline] __se_sys_sendmsg net/socket.c:2159 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2159 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'queues' (00000000fc83b4f2): kobject_uevent_env kobject: 'queues' (00000000fc83b4f2): kobject_uevent_env: filter function caused the event to drop! entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4572d9 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4709a68c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e kobject: 'rx-0' (000000007280456f): kobject_add_internal: parent: 'queues', set: 'queues' RAX: ffffffffffffffda RBX: 00007f4709a696d4 RCX: 00000000004572d9 RDX: 0000000000000000 RSI: 0000000020d65000 RDI: 0000000000000003 RBP: 0000000000930140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d4f58 R14: 00000000004c9431 R15: 0000000000000001 Kernel Offset: disabled Rebooting in 86400 seconds..