------------[ cut here ]------------ WARNING: CPU: 1 PID: 13763 at net/sched/sch_taprio.c:999 taprio_get_start_time net/sched/sch_taprio.c:999 [inline] WARNING: CPU: 1 PID: 13763 at net/sched/sch_taprio.c:999 taprio_change+0x3119/0x3fe0 net/sched/sch_taprio.c:1550 Modules linked in: CPU: 1 PID: 13763 Comm: syz-executor.3 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:taprio_get_start_time net/sched/sch_taprio.c:999 [inline] RIP: 0010:taprio_change+0x3119/0x3fe0 net/sched/sch_taprio.c:1550 Code: 8b 44 24 18 41 bc ea ff ff ff 48 c7 00 00 07 6c 8a e8 0b 97 3e fa 48 8b 7c 24 08 e8 e1 86 d5 01 e9 10 d9 ff ff e8 f7 96 3e fa <0f> 0b 48 c7 c7 a0 06 6c 8a e8 19 a5 06 00 48 83 7c 24 18 00 74 2e RSP: 0018:ffffc9000173efd0 EFLAGS: 00010202 RAX: 0000000000008bc0 RBX: 0000000000000000 RCX: ffffc9000fcfc000 RDX: 0000000000040000 RSI: ffffffff8735c719 RDI: 0000000000000003 RBP: 167b40ef98635760 R08: 0000000000000000 R09: ffffffff901b1977 R10: ffffffff8735b643 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f13fbc0e700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31725000 CR3: 00000000144da000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: taprio_init+0x52e/0x670 net/sched/sch_taprio.c:1709 qdisc_create+0x475/0x12f0 net/sched/sch_api.c:1247 tc_modify_qdisc+0x4c8/0x1a50 net/sched/sch_api.c:1663 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5553 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2502 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 sock_no_sendpage+0xf3/0x130 net/core/sock.c:2854 kernel_sendpage.part.0+0x1ab/0x350 net/socket.c:3631 kernel_sendpage net/socket.c:3628 [inline] sock_sendpage+0xe5/0x140 net/socket.c:947 pipe_to_sendpage+0x2ad/0x380 fs/splice.c:364 splice_from_pipe_feed fs/splice.c:418 [inline] __splice_from_pipe+0x43e/0x8a0 fs/splice.c:562 splice_from_pipe fs/splice.c:597 [inline] generic_splice_sendpage+0xd4/0x140 fs/splice.c:746 do_splice_from fs/splice.c:767 [inline] do_splice+0xb7e/0x1940 fs/splice.c:1079 __do_splice+0x134/0x250 fs/splice.c:1144 __do_sys_splice fs/splice.c:1350 [inline] __se_sys_splice fs/splice.c:1332 [inline] __x64_sys_splice+0x198/0x250 fs/splice.c:1332 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f13fbc0e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00000000004bfce1 R08: 0000000000008000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 0000000000a9fb1f R14: 00007f13fbc0e300 R15: 0000000000022000