------------[ cut here ]------------
WARNING: CPU: 0 PID: 13754 at net/sched/sch_taprio.c:1026 taprio_get_start_time+0x13c/0x16c net/sched/sch_taprio.c:1026
Modules linked in:
CPU: 0 PID: 13754 Comm: syz.1.1180 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : taprio_get_start_time+0x13c/0x16c net/sched/sch_taprio.c:1026
lr : taprio_get_start_time+0x13c/0x16c net/sched/sch_taprio.c:1026
sp : ffff800022196c00
x29: ffff800022196c00 x28: 00000000f8f8f8f8 x27: dfff800000000000
x26: 0000000000000000 x25: ffff0000df5e0b00 x24: dfff800000000000
x23: 0000000000000000 x22: 0000008410c8c810 x21: 0000000000000000
x20: 0000000000000000 x19: ffff800022196cf8 x18: 1fffe00033e7277e
x17: ffff80001537d000 x16: ffff8000082dd244 x15: ffff8000184cd000
x14: 0000000000000001 x13: 1ffff00002a70071 x12: 0000000000080000
x11: 00000000000035da x10: ffff80003703a000 x9 : ffff8000101c06d0
x8 : 00000000000035db x7 : ffff8000101c0628 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000002 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 taprio_get_start_time+0x13c/0x16c net/sched/sch_taprio.c:1026
 taprio_change+0x3940/0x4ef8 net/sched/sch_taprio.c:1661
 taprio_init+0x4ac/0x53c net/sched/sch_taprio.c:1828
 qdisc_create+0x704/0xe48 net/sched/sch_api.c:1305
 tc_modify_qdisc+0x96c/0x1814 net/sched/sch_api.c:-1
 rtnetlink_rcv_msg+0x694/0xcc4 net/core/rtnetlink.c:6166
 netlink_rcv_skb+0x220/0x3ec net/netlink/af_netlink.c:2516
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6184
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5fc/0x80c net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6f0/0x9d8 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x588/0x90c net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x288/0x374 net/socket.c:2602
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg net/socket.c:2609 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 107
hardirqs last  enabled at (106): [<ffff8000083c81f4>] seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline]
hardirqs last  enabled at (106): [<ffff8000083c81f4>] ktime_mono_to_any+0x14c/0x228 kernel/time/timekeeping.c:932
hardirqs last disabled at (107): [<ffff800011b8c77c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (74): [<ffff80000fefddb4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (98): [<ffff8000101b8d8c>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (98): [<ffff8000101b8d8c>] taprio_change+0x37d8/0x4ef8 net/sched/sch_taprio.c:1642
---[ end trace 0000000000000000 ]---