watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.1:9301]
Modules linked in:
irq event stamp: 3432135
hardirqs last  enabled at (3432134): [<ffff80008a44626c>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (3432134): [<ffff80008a44626c>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (3432135): [<ffff80008a443ea4>] __el1_irq arch/arm64/kernel/entry-common.c:470 [inline]
hardirqs last disabled at (3432135): [<ffff80008a443ea4>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (392): [<ffff800088987bb8>] spin_unlock_bh include/linux/spinlock.h:395 [inline]
softirqs last  enabled at (392): [<ffff800088987bb8>] taprio_change+0x3348/0x3bc0 net/sched/sch_taprio.c:1993
softirqs last disabled at (393): [<ffff80008002b660>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
CPU: 0 PID: 9301 Comm: syz-executor.1 Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : preempt_count arch/arm64/include/asm/preempt.h:13 [inline]
pc : check_kcov_mode kernel/kcov.c:173 [inline]
pc : __sanitizer_cov_trace_pc+0x34/0x7c kernel/kcov.c:207
lr : taprio_dequeue_from_txq+0x350/0x834 net/sched/sch_taprio.c:729
sp : ffff800080007bd0
x29: ffff800080007bf0 x28: 0000000000000001 x27: 0000000000000002
x26: dfff800000000000 x25: ffff000122e68000 x24: ffff0001286132d0
x23: 0000000000008a27 x22: ffff0000f8fd1800 x21: ffff80008def68b8
x20: ffff00012788b800 x19: ffff000128613000 x18: ffff0000c76f8906
x17: ffff8001263da000 x16: ffff80008050b28c x15: 0000000000000102
x14: 1ffff00011bde0ac x13: dfff800000000000 x12: 00000000bcfcd0ea
x11: 0000000000000102 x10: 0000000000000100 x9 : 0000000000000100
x8 : ffff0000c83c1bc0 x7 : ffff80008898bc8c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000008a27
x2 : ffff0000f8fd1800 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 check_kcov_mode kernel/kcov.c:173 [inline]
 __sanitizer_cov_trace_pc+0x34/0x7c kernel/kcov.c:207
 taprio_dequeue_tc_priority+0x184/0x64c net/sched/sch_taprio.c:795
 taprio_dequeue+0x174/0x508
 dequeue_skb net/sched/sch_generic.c:292 [inline]
 qdisc_restart net/sched/sch_generic.c:397 [inline]
 __qdisc_run+0x1fc/0x231c net/sched/sch_generic.c:415
 qdisc_run+0xc4/0x23c include/net/pkt_sched.h:125
 net_tx_action+0x6f8/0x8ac net/core/dev.c:5090
 __do_softirq+0x2d0/0xd54 kernel/softirq.c:571
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:882
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85
 do_softirq+0x11c/0x1d8 kernel/softirq.c:472
 __local_bh_enable_ip+0x2b0/0x4ac kernel/softirq.c:396
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
 _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210
 spin_unlock_bh include/linux/spinlock.h:395 [inline]
 taprio_change+0x3348/0x3bc0 net/sched/sch_taprio.c:1993
 taprio_init+0x758/0x9c0 net/sched/sch_taprio.c:2123
 qdisc_create+0x810/0xe60 net/sched/sch_api.c:1326
 tc_modify_qdisc+0x9f0/0x1840
 rtnetlink_rcv_msg+0x744/0xdb8 net/core/rtnetlink.c:6417
 netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2546
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6435
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x660/0x8d4 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x834/0xb18 net/netlink/af_netlink.c:1913
 sock_sendmsg_nosec net/socket.c:724 [inline]
 sock_sendmsg net/socket.c:747 [inline]
 ____sys_sendmsg+0x568/0x81c net/socket.c:2503
 ___sys_sendmsg net/socket.c:2557 [inline]
 __sys_sendmsg+0x26c/0x33c net/socket.c:2586
 __do_sys_sendmsg net/socket.c:2595 [inline]
 __se_sys_sendmsg net/socket.c:2593 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2593
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191
 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591