syzkaller
syzkaller login: [ 20.794810][ T910] cgroup: Unknown subsys name 'net'
[ 20.797433][ T910] cgroup: Unknown subsys name 'net_prio'
[ 20.800036][ T910] cgroup: Unknown subsys name 'devices'
[ 20.801164][ T910] cgroup: Unknown subsys name 'blkio'
[ 20.899874][ T910] cgroup: Unknown subsys name 'hugetlb'
[ 20.905513][ T910] cgroup: Unknown subsys name 'rlimit'
[ 21.854504][ T910] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
Warning: Permanently added '10.128.0.38' (ED25519) to the list of known hosts.
2024/01/14 01:14:00 ignoring optional flag "sandboxArg"="0"
2024/01/14 01:14:00 parsed 1 programs
2024/01/14 01:14:01 executed programs: 0
[ 40.959832][ T1434] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 144.458968][ C0] rcu: INFO: rcu_sched self-detected stall on CPU
[ 144.465922][ C0] rcu: 0-...!: (10000 ticks this GP) idle=533/1/0x4000000000000000 softirq=6291/6291 fqs=0
[ 144.476213][ C0] (t=10002 jiffies g=1417 q=487)
[ 144.481295][ C0] rcu: rcu_sched kthread timer wakeup didn't happen for 10002 jiffies! g1417 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
[ 144.493584][ C0] rcu: Possible timer handling issue on cpu=1 timer-softirq=759
[ 144.502191][ C0] rcu: rcu_sched kthread starved for 10005 jiffies! g1417 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
[ 144.513894][ C0] rcu: Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[ 144.524136][ C0] rcu: RCU grace-period kthread stack dump:
[ 144.530102][ C0] task:rcu_sched state:I stack:14856 pid: 12 ppid: 2 flags:0x00004000
[ 144.539293][ C0] Call Trace:
[ 144.542574][ C0]
[ 144.545579][ C0] __schedule+0x2b8/0x790
[ 144.549973][ C0] ? rcu_gp_init+0x450/0x450
[ 144.554638][ C0] schedule+0x53/0x90
[ 144.558598][ C0] schedule_timeout+0xaf/0x140
[ 144.563331][ C0] ? destroy_timer_on_stack+0x10/0x10
[ 144.568770][ C0] rcu_gp_fqs_loop+0xe2/0x320
[ 144.573441][ C0] rcu_gp_kthread+0x77/0xe0
[ 144.577920][ C0] kthread+0x10b/0x130
[ 144.581982][ C0] ? set_kthread_struct+0x40/0x40
[ 144.586981][ C0] ret_from_fork+0x1f/0x30
[ 144.591460][ C0]
[ 144.594631][ C0] rcu: Stack dump where RCU GP kthread last ran:
[ 144.601013][ C0] Sending NMI from CPU 0 to CPUs 1:
[ 144.606191][ C1] NMI backtrace for cpu 1
[ 144.606194][ C1] CPU: 1 PID: 3959 Comm: syz-executor.4 Not tainted 5.15.146-syzkaller #0
[ 144.606198][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[ 144.606200][ C1] RIP: 0010:pid_vnr+0x0/0x60
[ 144.606205][ C1] Code: 04 48 01 c7 48 39 b7 d8 00 00 00 74 04 44 89 c0 c3 44 8b 87 d0 00 00 00 44 89 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <65> 48 8b 04 25 00 af 01 00 48 8b 80 c8 05 00 00 48 85 c0 74 0f 8b
[ 144.606208][ C1] RSP: 0018:ffffc90000ff3ba0 EFLAGS: 00000246
[ 144.606211][ C1] RAX: ffffffffffffffff RBX: 0000000000000000 RCX: 0000000000000000
[ 144.606212][ C1] RDX: ffff88810b12cec0 RSI: ffff88810b12ce00 RDI: 0000000000000000
[ 144.606214][ C1] RBP: ffff888179e7ad00 R08: 0000000000000000 R09: ffffffff81bbf240
[ 144.606215][ C1] R10: 0000000000080000 R11: 0000000000000001 R12: ffff888179e7b210
[ 144.606217][ C1] R13: 0000000000000002 R14: 0000000000000002 R15: ffff88810b1a9000
[ 144.606218][ C1] FS: 00007f3420d536c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
[ 144.606220][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 144.606222][ C1] CR2: 0000000021000000 CR3: 000000017cafa000 CR4: 00000000003506e0
[ 144.606226][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 144.606227][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 144.606228][ C1] Call Trace:
[ 144.606231][ C1]
[ 144.606232][ C1] ? nmi_cpu_backtrace.cold+0x1c/0x80
[ 144.606238][ C1] ? nmi_cpu_backtrace_handler+0x8/0x10
[ 144.606244][ C1] ? nmi_handle+0xac/0x140
[ 144.606248][ C1] ? default_do_nmi+0x42/0x240
[ 144.606255][ C1] ? exc_nmi+0xf8/0x120
[ 144.606258][ C1] ? end_repeat_nmi+0x16/0x31
[ 144.606263][ C1] ? __skb_free_datagram_locked+0x180/0x180
[ 144.606269][ C1] ? pid_nr_ns+0x40/0x40
[ 144.606271][ C1] ? pid_nr_ns+0x40/0x40
[ 144.606273][ C1] ? pid_nr_ns+0x40/0x40
[ 144.606275][ C1]
[ 144.606276][ C1]
[ 144.606277][ C1] __unix_dgram_recvmsg+0x20b/0x3f0
[ 144.606282][ C1] ? asm_sysvec_call_function_single+0x16/0x20
[ 144.606289][ C1] ____sys_recvmsg+0x13c/0x160
[ 144.606292][ C1] ? _copy_from_user+0x51/0x80
[ 144.606298][ C1] ? __copy_msghdr_from_user+0x33/0x150
[ 144.606302][ C1] ___sys_recvmsg+0x7d/0x100
[ 144.606304][ C1] ? do_raw_spin_unlock+0x50/0xa0
[ 144.606309][ C1] ? _raw_spin_unlock+0x1a/0x20
[ 144.606312][ C1] ? finish_task_switch.isra.0+0x97/0x220
[ 144.606315][ C1] ? finish_task_switch.isra.0+0x61/0x220
[ 144.606317][ C1] ? __schedule+0x2c0/0x790
[ 144.606322][ C1] do_recvmmsg+0xbd/0x270
[ 144.606324][ C1] ? find_held_lock+0x2b/0x80
[ 144.606327][ C1] __x64_sys_recvmmsg+0xa3/0xc0
[ 144.606331][ C1] ? vtime_user_exit+0x6d/0xa0
[ 144.606336][ C1] do_syscall_64+0x35/0x80
[ 144.606340][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 144.606343][ C1] RIP: 0033:0x7f34211f1ae9
[ 144.606347][ C1] 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
[ 144.606350][ C1] RSP: 002b:00007f3420d530c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
[ 144.606353][ C1] RAX: ffffffffffffffda RBX: 00007f3421311050 RCX: 00007f34211f1ae9
[ 144.606354][ C1] RDX: 00000000040002db RSI: 0000000020000740 RDI: 0000000000000003
[ 144.606355][ C1] RBP: 00007f342123d47a R08: 0000000000000000 R09: 0000000000000000
[ 144.606356][ C1] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
[ 144.606358][ C1] R13: 000000000000006e R14: 00007f3421311050 R15: 00007ffe5297e458
[ 144.606359][ C1]
[ 144.607198][ C0] NMI backtrace for cpu 0
[ 144.975764][ C0] CPU: 0 PID: 3929 Comm: syz-executor.3 Not tainted 5.15.146-syzkaller #0
[ 144.984854][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[ 144.995400][ C0] Call Trace:
[ 144.998657][ C0]
[ 145.001829][ C0] dump_stack_lvl+0x41/0x5e
[ 145.006320][ C0] nmi_cpu_backtrace.cold+0x32/0x80
[ 145.011490][ C0] ? lapic_can_unplug_cpu+0x80/0x80
[ 145.016932][ C0] nmi_trigger_cpumask_backtrace+0x81/0x90
[ 145.022807][ C0] rcu_dump_cpu_stacks+0xa5/0xd3
[ 145.028111][ C0] rcu_sched_clock_irq.cold+0xc7/0x1e7
[ 145.033544][ C0] ? tick_sched_timer+0x15/0x70
[ 145.038453][ C0] update_process_times+0x87/0xc0
[ 145.043448][ C0] tick_sched_handle+0x1d/0x50
[ 145.048353][ C0] tick_sched_timer+0x5c/0x70
[ 145.053084][ C0] ? tick_sched_do_timer+0xf0/0xf0
[ 145.058160][ C0] __hrtimer_run_queues+0x138/0x2e0
[ 145.063419][ C0] hrtimer_interrupt+0x109/0x230
[ 145.068609][ C0] __sysvec_apic_timer_interrupt+0x63/0x100
[ 145.074478][ C0] sysvec_apic_timer_interrupt+0x65/0x90
[ 145.080446][ C0]
[ 145.083365][ C0]
[ 145.086451][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 145.092503][ C0] RIP: 0010:finish_task_switch.isra.0+0xa1/0x220
[ 145.099093][ C0] Code: f6 68 a1 3c 09 81 49 8d 7c 24 18 e8 39 75 02 00 4c 89 e7 e8 d1 fe ff ff 4c 89 e7 e8 e9 6b f3 00 fb 65 48 8b 04 25 00 af 01 00 <8b> 88 d8 14 00 00 5a 85 c9 0f 85 09 01 00 00 4d 85 f6 74 1d 65 48
[ 145.119113][ C0] RSP: 0018:ffffc90000f839f0 EFLAGS: 00000246
[ 145.125248][ C0] RAX: ffff88817da79b00 RBX: ffff88817da79b00 RCX: ffffc90000f839a4
[ 145.133454][ C0] RDX: 0000000000000000 RSI: ffff888237c2bb18 RDI: ffff888237c2bb00
[ 145.141718][ C0] RBP: ffffc90000f83a20 R08: ffff88810b140000 R09: 0000000000000000
[ 145.149758][ C0] R10: 0000000000080000 R11: 0000000000000001 R12: ffff888237c2bb00
[ 145.158139][ C0] R13: ffff88817da70000 R14: 0000000000000000 R15: 0000000000000000
[ 145.166274][ C0] ? finish_task_switch.isra.0+0x61/0x220
[ 145.172294][ C0] __schedule+0x2c0/0x790
[ 145.176700][ C0] schedule+0x53/0x90
[ 145.180826][ C0] schedule_timeout+0x100/0x140
[ 145.185832][ C0] ? unix_wait_for_peer+0xbc/0xd0
[ 145.191091][ C0] ? do_raw_spin_unlock+0x50/0xa0
[ 145.196089][ C0] unix_wait_for_peer+0xc4/0xd0
[ 145.201003][ C0] ? do_wait_intr_irq+0xa0/0xa0
[ 145.205931][ C0] unix_dgram_sendmsg+0x8b0/0x900
[ 145.211014][ C0] __sock_sendmsg+0x2e/0x40
[ 145.215515][ C0] ____sys_sendmsg+0x13d/0x250
[ 145.220517][ C0] ? import_iovec+0x17/0x20
[ 145.225083][ C0] ? sendmsg_copy_msghdr+0x77/0xa0
[ 145.230426][ C0] ___sys_sendmsg+0x6e/0xb0
[ 145.235022][ C0] ? futex_wait+0xe2/0x240
[ 145.239502][ C0] ? try_to_wake_up+0x1c9/0x4f0
[ 145.244588][ C0] ? find_held_lock+0x2b/0x80
[ 145.249745][ C0] ? __fget_files+0x91/0xe0
[ 145.254222][ C0] ? __fget_files+0xa9/0xe0
[ 145.258791][ C0] __sys_sendmmsg+0xb0/0x1b0
[ 145.263382][ C0] ? fini_debug_store_on_cpu+0x30/0x30
[ 145.268999][ C0] ? find_held_lock+0x2b/0x80
[ 145.273875][ C0] ? __context_tracking_exit+0x47/0x90
[ 145.279420][ C0] __x64_sys_sendmmsg+0x1b/0x20
[ 145.284330][ C0] do_syscall_64+0x35/0x80
[ 145.288806][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 145.294765][ C0] RIP: 0033:0x7f7d50474ae9
[ 145.300120][ C0] 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
[ 145.320396][ C0] RSP: 002b:00007f7d4fff70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
[ 145.329184][ C0] RAX: ffffffffffffffda RBX: 00007f7d50593f80 RCX: 00007f7d50474ae9
[ 145.337723][ C0] RDX: 0000000000000318 RSI: 00000000200bd000 RDI: 0000000000000004
[ 145.345845][ C0] RBP: 00007f7d504c047a R08: 0000000000000000 R09: 0000000000000000
[ 145.357407][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 145.367068][ C0] R13: 0000000000000006 R14: 00007f7d50593f80 R15: 00007ffffff4f4b8
[ 145.375371][ C0]
[ 145.378043][ T3959] sched: RT throttling activated
2024/01/14 01:15:45 executed programs: 6