RBP: 0000000000000082 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000007d358 R13: 0000000000403430 R14: 0000000000000000 R15: 0000000000000000 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 8546 Comm: syz-executor405 Not tainted 4.12.0+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88010c4204c0 task.stack: ffff880123688000 RIP: 0010:qdisc_destroy+0x1f/0x2d0 net/sched/sch_generic.c:703 RSP: 0018:ffff88012368f498 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff100218841a8 RDX: 0000000000000002 RSI: ffff88010c420d20 RDI: 0000000000000010 RBP: ffff88012368f4a8 R08: ffff88010c420d40 R09: 0000000000000006 R10: 0000000000000000 R11: ffff88010c4204c0 R12: ffffffff858b4e80 R13: ffff88011f4e2dc0 R14: 00000000fffffff4 R15: ffff88012368f708 FS: 0000000000f16880(0000) GS:ffff88012c000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000610 CR3: 0000000119349000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sfb_destroy+0x5c/0x70 net/sched/sch_sfb.c:471 qdisc_create+0x87f/0xdb0 net/sched/sch_api.c:1023 tc_modify_qdisc+0x31d/0x1820 net/sched/sch_api.c:1333 rtnetlink_rcv_msg+0x4c0/0x7e0 net/core/rtnetlink.c:4216 netlink_rcv_skb+0x211/0x490 net/netlink/af_netlink.c:2397 rtnetlink_rcv+0x25/0x30 net/core/rtnetlink.c:4222 netlink_unicast_kernel net/netlink/af_netlink.c:1265 [inline] netlink_unicast+0x426/0x630 net/netlink/af_netlink.c:1291 netlink_sendmsg+0x8c3/0xe80 net/netlink/af_netlink.c:1854 sock_sendmsg_nosec net/socket.c:633 [inline] sock_sendmsg+0xb5/0xf0 net/socket.c:643 ___sys_sendmsg+0x66b/0x9a0 net/socket.c:2037 __sys_sendmsg+0xd6/0x220 net/socket.c:2071 SYSC_sendmsg net/socket.c:2082 [inline] SyS_sendmsg+0xd/0x20 net/socket.c:2078 entry_SYSCALL_64_fastpath+0x23/0xc2 RIP: 0033:0x4424d9 RSP: 002b:00007ffd464bce68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004424d9 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 RBP: 0000000000000082 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000007d358 R13: 0000000000403430 R14: 0000000000000000 R15: 0000000000000000 Code: ff 90 66 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 54 53 48 89 fb 48 83 c7 10 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 2e 02 00 00 f6 43 10 01 74 RIP: qdisc_destroy+0x1f/0x2d0 net/sched/sch_generic.c:703 RSP: ffff88012368f498 ---[ end trace 4404ab9f3662d6ed ]---