vkms_vblank_simulate: vblank timer overrun
vkms_vblank_simulate: vblank timer overrun
watchdog: BUG: soft lockup - CPU#0 stuck for 63s! [syz.0.28:4173]
Modules linked in:
irq event stamp: 301
hardirqs last  enabled at (300): [<ffff800011b8f340>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (300): [<ffff800011b8f340>] _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194
hardirqs last disabled at (301): [<ffff800011ab7110>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (270): [<ffff80000feeb854>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (290): [<ffff8000101f1970>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (290): [<ffff8000101f1970>] taprio_change+0x2af8/0x3770 net/sched/sch_taprio.c:1556
CPU: 0 PID: 4173 Comm: syz.0.28 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
pc : _raw_spin_unlock_irqrestore+0xbc/0x158 kernel/locking/spinlock.c:194
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
lr : _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194
sp : ffff8000204e6a80
x29: ffff8000204e6a90 x28: 0000000000000000 x27: ffff0000c2b65ac0
x26: ffff70000409cd74 x25: ffff0000c2b658f0 x24: ffff0000cebf8710
x23: 0000000000000000 x22: ffff8000101f1e28 x21: ffff0000c2b65b00
x20: ffff0000c2b65ae8 x19: 0000000000000000 x18: ffff8000204e6500
x17: 0000000000000002 x16: ffff8000082ec8b8 x15: 00000000000171a9
x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000080000
x11: 0000000000004ada x10: 0000000000000003 x9 : 0000000000000080
x8 : 00000000000000c0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000804605c
x2 : 0000000000000002 x1 : ffff800011c0ad00 x0 : ffff80019f77a000
Call trace:
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 _raw_spin_unlock_irqrestore+0xbc/0x158 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
 taprio_change+0x2fb0/0x3770 net/sched/sch_taprio.c:1620
 taprio_init+0x46c/0x514 net/sched/sch_taprio.c:1752
 qdisc_create+0x6fc/0xf44 net/sched/sch_api.c:1269
 tc_modify_qdisc+0x8fc/0x1364
 rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5647
 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2504
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline]
 netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1352
 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1920
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x584/0x870 net/socket.c:2436
 ___sys_sendmsg+0x214/0x294 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg net/socket.c:2526 [inline]
 __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2526
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584