------------[ cut here ]------------ WARNING: CPU: 0 PID: 5716 at net/sched/sch_taprio.c:1026 taprio_get_start_time+0x139/0x160 net/sched/sch_taprio.c:1026 Modules linked in: CPU: 0 PID: 5716 Comm: syz.0.417 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:taprio_get_start_time+0x139/0x160 net/sched/sch_taprio.c:1026 Code: 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 4c d9 6e f9 4c 89 23 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 07 d1 1d f9 <0f> 0b b8 f2 ff ff ff eb e7 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c RSP: 0018:ffffc90004f86d68 EFLAGS: 00010287 RAX: ffffffff8864aa99 RBX: ffffc90004f86e78 RCX: 0000000000080000 RDX: ffffc900057b9000 RSI: 0000000000005c02 RDI: 0000000000005c03 RBP: 0000000000000002 R08: ffffffff90aff3a7 R09: 1ffffffff215fe74 R10: dffffc0000000000 R11: fffffbfff215fe75 R12: 18b6ac5d30fcc976 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f90f3c286c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000200 CR3: 000000007e285000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: taprio_change+0x40d9/0x5490 net/sched/sch_taprio.c:1661 qdisc_create+0x7eb/0x10b0 net/sched/sch_api.c:1305 tc_modify_qdisc+0xb5f/0x1d10 net/sched/sch_api.c:-1 rtnetlink_rcv_msg+0x87c/0xfc0 net/core/rtnetlink.c:6158 netlink_rcv_skb+0x1fb/0x450 net/netlink/af_netlink.c:2511 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x74d/0x8d0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8ad/0xbd0 net/netlink/af_netlink.c:1872 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5be/0x970 net/socket.c:2518 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2572 __sys_sendmsg net/socket.c:2601 [inline] __do_sys_sendmsg net/socket.c:2610 [inline] __se_sys_sendmsg+0x1bb/0x2a0 net/socket.c:2608 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f90f2d9ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f90f3c28028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f90f3015fa0 RCX: 00007f90f2d9ce59 RDX: 0000000000008010 RSI: 00002000000012c0 RDI: 0000000000000007 RBP: 00007f90f2e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f90f3016038 R14: 00007f90f3015fa0 R15: 00007ffecfe3c168