netlink: 96 bytes leftover after parsing attributes in process `syz-executor622'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 10106 at net/sched/sch_cbq.c:1437 cbq_destroy_class+0x11a/0x150 net/sched/sch_cbq.c:1437 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 10106 Comm: syz-executor622 Not tainted 5.5.0-rc7-syzkaller #0 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+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:cbq_destroy_class+0x11a/0x150 net/sched/sch_cbq.c:1437 Code: 00 00 e8 d9 57 da ff 49 39 dc 74 0d e8 9f 98 30 fb 4c 89 e7 e8 67 09 6e fb e8 92 98 30 fb 5b 41 5c 41 5d 5d c3 e8 86 98 30 fb <0f> 0b e9 37 ff ff ff e8 9a 58 6e fb e9 12 ff ff ff e8 b0 58 6e fb RSP: 0018:ffffc9000640f0e0 EFLAGS: 00010293 RAX: ffff88808b4ae3c0 RBX: ffff88809890c000 RCX: ffffffff86445bcf RDX: 0000000000000000 RSI: ffffffff86445c9a RDI: 0000000000000005 RBP: ffffc9000640f0f8 R08: ffff88808b4ae3c0 R09: fffffbfff165e7a0 R10: fffffbfff165e79f R11: ffffffff8b2f3cff R12: ffff88809890c320 R13: 0000000000000001 R14: 0000000000000000 R15: ffff88809890c320 cbq_destroy net/sched/sch_cbq.c:1471 [inline] cbq_destroy+0x208/0x2c0 net/sched/sch_cbq.c:1447 qdisc_destroy+0x11f/0x630 net/sched/sch_generic.c:958 qdisc_put+0xdb/0x100 net/sched/sch_generic.c:985 notify_and_destroy+0xa2/0xb0 net/sched/sch_api.c:995 qdisc_graft+0xd42/0x1210 net/sched/sch_api.c:1076 tc_modify_qdisc+0xcbd/0x1cd0 net/sched/sch_api.c:1663 rtnetlink_rcv_msg+0x45e/0xaf0 net/core/rtnetlink.c:5424 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 kernel_sendmsg+0x44/0x50 net/socket.c:679 sock_no_sendpage+0x116/0x150 net/core/sock.c:2740 kernel_sendpage+0x92/0xf0 net/socket.c:3776 sock_sendpage+0x8b/0xc0 net/socket.c:937 pipe_to_sendpage+0x2da/0x3c0 fs/splice.c:458 splice_from_pipe_feed fs/splice.c:512 [inline] __splice_from_pipe+0x3ee/0x7c0 fs/splice.c:636 splice_from_pipe+0x108/0x170 fs/splice.c:671 generic_splice_sendpage+0x3c/0x50 fs/splice.c:844 do_splice_from fs/splice.c:863 [inline] do_splice+0xba4/0x1680 fs/splice.c:1170 __do_sys_splice fs/splice.c:1447 [inline] __se_sys_splice fs/splice.c:1427 [inline] __x64_sys_splice+0x2c6/0x330 fs/splice.c:1427 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446e79 Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f93b8fa8d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00000000006dcc98 RCX: 0000000000446e79 RDX: 0000000000000009 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 00000000006dcc90 R08: 000000000004ffe0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc9c R13: 00000000004aed8e R14: 54c6c2ff093a6d32 R15: 0000000000010000 Kernel Offset: disabled Rebooting in 86400 seconds..