------------[ cut here ]------------
WARNING: CPU: 1 PID: 21912 at net/sched/sch_taprio.c:1043 taprio_get_start_time net/sched/sch_taprio.c:1043 [inline]
WARNING: CPU: 1 PID: 21912 at net/sched/sch_taprio.c:1043 taprio_change+0x3119/0x3fe0 net/sched/sch_taprio.c:1594
Modules linked in:
CPU: 1 PID: 21912 Comm: syz-executor.0 Not tainted 5.12.0-rc7-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:1043 [inline]
RIP: 0010:taprio_change+0x3119/0x3fe0 net/sched/sch_taprio.c:1594
Code: 8b 44 24 18 41 bc ea ff ff ff 48 c7 00 80 57 6b 8a e8 fb 22 41 fa 48 8b 7c 24 08 e8 51 14 d9 01 e9 10 d9 ff ff e8 e7 22 41 fa <0f> 0b 48 c7 c7 20 57 6b 8a e8 d9 a5 06 00 48 83 7c 24 18 00 74 2e
RSP: 0018:ffffc900161c6fd8 EFLAGS: 00010212
RAX: 00000000000026fc RBX: 0000000000000000 RCX: ffffc90001ce1000
RDX: 0000000000040000 RSI: ffffffff8732d379 RDI: 0000000000000003
RBP: 0000006731c754ea R08: 0000000000000000 R09: ffffffff8fae2977
R10: ffffffff8732c2a3 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000000
FS:  00007f19f4894700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000051e3b0 CR3: 000000002142c000 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:1753
 qdisc_create+0x475/0x1310 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:5562
 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+0x2d/0x70 arch/x86/entry/common.c:46
 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:00007f19f4894188 EFLAGS: 00000246 ORIG_RAX: 0000000000000113
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00000000004bfce1 R08: 0000000000008000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007fffd01ae17f R14: 00007f19f4894300 R15: 0000000000022000