rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10501 ticks this GP) idle=fe54/1/0x4000000000000000 softirq=59921/59921 fqs=0
rcu: 	(t=10502 jiffies g=91161 q=110 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10502 jiffies! g91161 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=67983
rcu: rcu_preempt kthread starved for 10505 jiffies! g91161 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:28320 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 schedule+0xe7/0x1b0 kernel/sched/core.c:6786
 schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1609
 rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1808
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 22684 Comm: syz-executor.3 Not tainted 6.5.0-rc2-syzkaller-00052-gbfa3037d8280 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:taprio_dequeue_tc_priority+0x274/0x4b0 net/sched/sch_taprio.c:798
Code: 0f 84 40 ff ff ff e8 ab 08 2d f9 49 83 ff 0f 0f 87 e1 01 00 00 48 8b 04 24 0f b6 00 38 44 24 36 7c 08 84 c0 0f 85 bf 01 00 00 <8b> 33 8b 4c 24 30 48 8b 54 24 38 48 8b 7c 24 20 e8 a7 f4 ff ff 49
RSP: 0018:ffffc90000007d60 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88804117b394 RCX: 0000000000000100
RDX: ffff888076b28000 RSI: ffffffff88596805 RDI: 0000000000000004
RBP: 000000000000000b R08: 0000000000000004 R09: 000000000000000b
R10: 0000000000000000 R11: 0000000000094000 R12: 0000000000000010
R13: ffff888028246b60 R14: 0000000000000000 R15: 0000000000000001
FS:  00007f6785fca6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000078de6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 taprio_dequeue+0x12e/0x5f0 net/sched/sch_taprio.c:868
 dequeue_skb net/sched/sch_generic.c:292 [inline]
 qdisc_restart net/sched/sch_generic.c:397 [inline]
 __qdisc_run+0x1c4/0x19d0 net/sched/sch_generic.c:415
 qdisc_run include/net/pkt_sched.h:125 [inline]
 qdisc_run include/net/pkt_sched.h:122 [inline]
 net_tx_action+0x71e/0xc80 net/core/dev.c:5049
 __do_softirq+0x218/0x965 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 e6 ea 31 f7 48 89 df e8 9e 63 32 f7 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 65 0c 24 f7 65 8b 05 56 2b ce 75 85 c0 74 12 5b
RSP: 0018:ffffc900160d7730 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff88801ab9dec0 RCX: 1ffffffff2311f2e
RDX: 0000000000000000 RSI: ffffffff8a6c7700 RDI: ffffffff8ac806e0
RBP: 0000000000000246 R08: 0000000000000001 R09: fffffbfff23095e5
R10: ffffffff9184af2f R11: 0000000000000000 R12: ffff88801ab9dec0
R13: 0000000000000304 R14: 0000000000000010 R15: 0000000000000001
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __wake_up_common_lock+0xe3/0x140 kernel/sched/wait.c:140
 __unix_dgram_recvmsg+0x32e/0xe50 net/unix/af_unix.c:2380
 unix_dgram_recvmsg+0xc3/0xf0 net/unix/af_unix.c:2450
 sock_recvmsg_nosec net/socket.c:1020 [inline]
 ____sys_recvmsg+0x4ab/0x5c0 net/socket.c:2711
 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2755
 do_recvmmsg+0x2af/0x740 net/socket.c:2849
 __sys_recvmmsg net/socket.c:2928 [inline]
 __do_sys_recvmmsg net/socket.c:2951 [inline]
 __se_sys_recvmmsg net/socket.c:2944 [inline]
 __x64_sys_recvmmsg+0x235/0x290 net/socket.c:2944
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f678527cb29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6785fca0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f678539c050 RCX: 00007f678527cb29
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 00007f67852c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f678539c050 R15: 00007f67854bfa48
 </TASK>
CPU: 0 PID: 22684 Comm: syz-executor.3 Not tainted 6.5.0-rc2-syzkaller-00052-gbfa3037d8280 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:taprio_dequeue_tc_priority+0x274/0x4b0 net/sched/sch_taprio.c:798
Code: 0f 84 40 ff ff ff e8 ab 08 2d f9 49 83 ff 0f 0f 87 e1 01 00 00 48 8b 04 24 0f b6 00 38 44 24 36 7c 08 84 c0 0f 85 bf 01 00 00 <8b> 33 8b 4c 24 30 48 8b 54 24 38 48 8b 7c 24 20 e8 a7 f4 ff ff 49
RSP: 0018:ffffc90000007d60 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88804117b394 RCX: 0000000000000100
RDX: ffff888076b28000 RSI: ffffffff88596805 RDI: 0000000000000004
RBP: 000000000000000b R08: 0000000000000004 R09: 000000000000000b
R10: 0000000000000000 R11: 0000000000094000 R12: 0000000000000010
R13: ffff888028246b60 R14: 0000000000000000 R15: 0000000000000001
FS:  00007f6785fca6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000078de6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 taprio_dequeue+0x12e/0x5f0 net/sched/sch_taprio.c:868
 dequeue_skb net/sched/sch_generic.c:292 [inline]
 qdisc_restart net/sched/sch_generic.c:397 [inline]
 __qdisc_run+0x1c4/0x19d0 net/sched/sch_generic.c:415
 qdisc_run include/net/pkt_sched.h:125 [inline]
 qdisc_run include/net/pkt_sched.h:122 [inline]
 net_tx_action+0x71e/0xc80 net/core/dev.c:5049
 __do_softirq+0x218/0x965 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 e6 ea 31 f7 48 89 df e8 9e 63 32 f7 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 65 0c 24 f7 65 8b 05 56 2b ce 75 85 c0 74 12 5b
RSP: 0018:ffffc900160d7730 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff88801ab9dec0 RCX: 1ffffffff2311f2e
RDX: 0000000000000000 RSI: ffffffff8a6c7700 RDI: ffffffff8ac806e0
RBP: 0000000000000246 R08: 0000000000000001 R09: fffffbfff23095e5
R10: ffffffff9184af2f R11: 0000000000000000 R12: ffff88801ab9dec0
R13: 0000000000000304 R14: 0000000000000010 R15: 0000000000000001
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __wake_up_common_lock+0xe3/0x140 kernel/sched/wait.c:140
 __unix_dgram_recvmsg+0x32e/0xe50 net/unix/af_unix.c:2380
 unix_dgram_recvmsg+0xc3/0xf0 net/unix/af_unix.c:2450
 sock_recvmsg_nosec net/socket.c:1020 [inline]
 ____sys_recvmsg+0x4ab/0x5c0 net/socket.c:2711
 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2755
 do_recvmmsg+0x2af/0x740 net/socket.c:2849
 __sys_recvmmsg net/socket.c:2928 [inline]
 __do_sys_recvmmsg net/socket.c:2951 [inline]
 __se_sys_recvmmsg net/socket.c:2944 [inline]
 __x64_sys_recvmmsg+0x235/0x290 net/socket.c:2944
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f678527cb29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6785fca0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f678539c050 RCX: 00007f678527cb29
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 00007f67852c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f678539c050 R15: 00007f67854bfa48
 </TASK>