syzbot

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WARNING: CPU: 0 PID: 4254 at net/sched/sch_taprio.c:1020 taprio_get_start_time+0x162/0x190 net/sched/sch_taprio.c:-1
Modules linked in:
CPU: 0 PID: 4254 Comm: syz-executor225 Not tainted 6.1.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:taprio_get_start_time+0x162/0x190 net/sched/sch_taprio.c:1020
Code: 03 42 80 3c 30 00 74 08 48 89 ef e8 b8 8c 07 f9 48 89 5d 00 31 c0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 3e 2a b0 f8 <0f> 0b b8 f2 ff ff ff eb e3 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 0b
RSP: 0018:ffffc90003c56dc0 EFLAGS: 00010293
RAX: ffffffff88da8012 RBX: 0000000000000000 RCX: ffff888079fc0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88802ff3f2d4 R08: ffffffff88da7fbf R09: fffffbfff2257869
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 18363134b1a9f97f R14: dffffc0000000000 R15: 0000000000000000
FS:  0000555555576380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000600 CR3: 000000002f843000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 taprio_change+0x4319/0x5600 net/sched/sch_taprio.c:1655
 qdisc_create+0x8a1/0x1220 net/sched/sch_api.c:1319
 tc_modify_qdisc+0xb6d/0x1e60 net/sched/sch_api.c:-1
 rtnetlink_rcv_msg+0x822/0x1000 net/core/rtnetlink.c:6153
 netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2493
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x7e2/0x970 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1859
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5d3/0x9a0 net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x2a9/0x390 net/socket.c:2602
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdf70d7d0a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe6283f878 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdf70d7d0a9
RDX: 0000000000000000 RSI: 00002000000007c0 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe6283f8d0
R13: 00007fdf70dca3fe R14: 0000000000000003 R15: 00007ffe6283f8b0
 </TASK>