------------[ cut here ]------------
WARNING: CPU: 1 PID: 11211 at net/sched/sch_taprio.c:999 taprio_get_start_time net/sched/sch_taprio.c:999 [inline]
WARNING: CPU: 1 PID: 11211 at net/sched/sch_taprio.c:999 taprio_change+0x3119/0x3fe0 net/sched/sch_taprio.c:1550
Modules linked in:
CPU: 1 PID: 11211 Comm: syz-executor.2 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:ffffc9000255efb0 EFLAGS: 00010212
RAX: 0000000000000d99 RBX: 0000000000000000 RCX: ffffc9000de46000
RDX: 0000000000040000 RSI: ffffffff8735c719 RDI: 0000000000000003
RBP: 167b66f158e391fb R08: 0000000000000000 R09: ffffffff901b197f
R10: ffffffff8735b643 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0063) knlGS:00000000f55dcb40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f557f5c8 CR3: 0000000012ccf000 CR4: 00000000001526e0
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]
 __ia32_sys_splice+0x195/0x250 fs/splice.c:1332
 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline]
 __do_fast_syscall_32+0x67/0xe0 arch/x86/entry/common.c:143
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:168
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fe2549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f55dc5fc EFLAGS: 00000296 ORIG_RAX: 0000000000000139
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000000
RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000008000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000