watchdog: BUG: soft lockup - CPU#1 stuck for 25s! [syz.2.17:4864]
Modules linked in:
irq event stamp: 233
hardirqs last  enabled at (232): [<ffff800011c31d68>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (232): [<ffff800011c31d68>] _raw_spin_unlock_irqrestore+0xac/0x158 kernel/locking/spinlock.c:194
hardirqs last disabled at (233): [<ffff800011b59384>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (200): [<ffff80000ff8e858>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (224): [<ffff80001028c84c>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (224): [<ffff80001028c84c>] taprio_change+0x2af8/0x3770 net/sched/sch_taprio.c:1556
CPU: 1 PID: 4864 Comm: syz.2.17 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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 : ffff80001fc96a80
x29: ffff80001fc96a90 x28: 0000000000000000 x27: ffff0000d6672ac0
x26: ffff700003f92d74 x25: ffff0000d66728f0 x24: ffff0000cd837810
x23: 0000000000000000 x22: ffff80001028cd04 x21: ffff0000d6672b00
x20: ffff0000d6672ae8 x19: 0000000000000000 x18: ffff80001fc96500
x17: 0000000000000000 x16: ffff8000082ed0ac x15: 000000000001a679
x14: 1ffff0000296e06c x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000000202 x10: 0000000000000003 x9 : 0000000000000080
x8 : 00000000000000c0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008046154
x2 : 0000000000000002 x1 : ffff800011caabe0 x0 : ffff80019f6d1000
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+0x984/0x1400 net/sched/sch_api.c:-1
 rtnetlink_rcv_msg+0xa7c/0xdb4 net/core/rtnetlink.c:5647
 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2489
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1905
 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