------------[ cut here ]------------ WARNING: CPU: 0 PID: 6959 at net/sched/sch_taprio.c:1020 taprio_get_start_time+0x13c/0x16c net/sched/sch_taprio.c:1020 Modules linked in: CPU: 0 PID: 6959 Comm: syz.2.784 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : taprio_get_start_time+0x13c/0x16c net/sched/sch_taprio.c:1020 lr : taprio_get_start_time+0x13c/0x16c net/sched/sch_taprio.c:1020 sp : ffff800021246ba0 x29: ffff800021246ba0 x28: 0000000000000000 x27: ffff0000de6fa400 x26: 20c49ba5e353f7cf x25: dfff800000000000 x24: dfff800000000000 x23: 0000000000000000 x22: 00000028a68c90e9 x21: 0000000000000000 x20: 0000000000000000 x19: ffff800021246c98 x18: ffff800011b9bf60 x17: ffff80001835b000 x16: ffff8000082d92bc x15: ffff800017e3c000 x14: 0000000000000001 x13: 1ffff00002a44071 x12: 0000000000080000 x11: 0000000000003a48 x10: ffff800025bca000 x9 : ffff80001008c190 x8 : 0000000000003a49 x7 : ffff80001008c0e8 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:1020 taprio_change+0x379c/0x4e00 net/sched/sch_taprio.c:1655 taprio_init+0x498/0x520 net/sched/sch_taprio.c:1822 qdisc_create+0x700/0xe24 net/sched/sch_api.c:1305 tc_modify_qdisc+0x95c/0x1830 net/sched/sch_api.c:-1 rtnetlink_rcv_msg+0x698/0xcdc net/core/rtnetlink.c:6157 netlink_rcv_skb+0x218/0x3e8 net/netlink/af_netlink.c:2511 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6175 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x60c/0x814 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f4/0x9c0 net/netlink/af_netlink.c:1872 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x5c8/0x938 net/socket.c:2518 ___sys_sendmsg net/socket.c:2572 [inline] __sys_sendmsg+0x288/0x374 net/socket.c:2601 __do_sys_sendmsg net/socket.c:2610 [inline] __se_sys_sendmsg net/socket.c:2608 [inline] __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2608 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 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: 309 hardirqs last enabled at (308): [] seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline] hardirqs last enabled at (308): [] ktime_mono_to_any+0x14c/0x228 kernel/time/timekeeping.c:932 hardirqs last disabled at (309): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (290): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (290): [] handle_softirqs+0xaec/0xc60 kernel/softirq.c:624 softirqs last disabled at (300): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (300): [] taprio_change+0x3630/0x4e00 net/sched/sch_taprio.c:1636 ---[ end trace 0000000000000000 ]---