list_del corruption, ffff8880798f2380->next is NULL ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:49! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5076 Comm: syz-executor808 Not tainted 6.2.0-rc7-syzkaller-01554-gde4287336794 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:__list_del_entry_valid.cold+0x48/0x72 lib/list_debug.c:49 Code: e8 26 2a f0 ff 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 00 c4 a6 8a e8 12 2a f0 ff 0f 0b 48 89 ee 48 c7 c7 e0 c2 a6 8a e8 01 2a f0 ff <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 c3 a6 8a e8 ed 29 f0 ff 0f 0b RSP: 0018:ffffc90003c7f3b8 EFLAGS: 00010282 RAX: 0000000000000033 RBX: ffff8880798f2000 RCX: 0000000000000000 RDX: ffff888026991d40 RSI: ffffffff8166195c RDI: fffff5200078fe69 RBP: ffff8880798f2380 R08: 0000000000000033 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880798f2388 R15: 0000000080010000 FS: 00005555558ce300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000668cf0 CR3: 000000001e4fe000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:134 [inline] list_del include/linux/list.h:148 [inline] taprio_destroy+0x7e/0x6e0 net/sched/sch_taprio.c:1973 qdisc_create+0xaca/0x1150 net/sched/sch_api.c:1329 tc_modify_qdisc+0x488/0x19c0 net/sched/sch_api.c:1679 rtnetlink_rcv_msg+0x43e/0xca0 net/core/rtnetlink.c:6174 netlink_rcv_skb+0x165/0x440 net/netlink/af_netlink.c:2574 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1942 sock_sendmsg_nosec net/socket.c:722 [inline] sock_sendmsg+0xde/0x190 net/socket.c:745 ____sys_sendmsg+0x71c/0x900 net/socket.c:2501 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2555 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2584 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fbcb6e7d839 Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb271eee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ffeb271eef8 RCX: 00007fbcb6e7d839 RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeb271ef00 R13: 00007ffeb271ef20 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid.cold+0x48/0x72 lib/list_debug.c:49 Code: e8 26 2a f0 ff 0f 0b 4c 89 e2 48 89 ee 48 c7 c7 00 c4 a6 8a e8 12 2a f0 ff 0f 0b 48 89 ee 48 c7 c7 e0 c2 a6 8a e8 01 2a f0 ff <0f> 0b 4c 89 ea 48 89 ee 48 c7 c7 a0 c3 a6 8a e8 ed 29 f0 ff 0f 0b RSP: 0018:ffffc90003c7f3b8 EFLAGS: 00010282 RAX: 0000000000000033 RBX: ffff8880798f2000 RCX: 0000000000000000 RDX: ffff888026991d40 RSI: ffffffff8166195c RDI: fffff5200078fe69 RBP: ffff8880798f2380 R08: 0000000000000033 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880798f2388 R15: 0000000080010000 FS: 00005555558ce300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 000000001e4fe000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400