Memory cgroup stats for /syz5: cache:68KB rss:290728KB rss_huge:262144KB shmem:0KB mapped_file:0KB dirty:0KB writeback:0KB swap:0KB inactive_anon:0KB active_anon:290840KB inactive_file:0KB active_file:4KB unevictable:0KB
Memory cgroup out of memory: Kill process 18166 (syz-executor.5) score 1160 or sacrifice child
Killed process 18166 (syz-executor.5) total-vm:73116kB, anon-rss:16568kB, file-rss:35840kB, shmem-rss:0kB
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10458 ticks this GP) idle=f56/1/0x4000000000000002 softirq=79920/79920 fqs=7 
rcu: 	 (t=10501 jiffies g=78901 q=378)
rcu: rcu_preempt kthread starved for 10455 jiffies! g78901 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    29104    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x866/0x1dc0 kernel/sched/core.c:3515
 schedule+0x92/0x1c0 kernel/sched/core.c:3559
 schedule_timeout+0x4db/0xfc0 kernel/time/timer.c:1806
 rcu_gp_kthread+0xd5c/0x2190 kernel/rcu/tree.c:2202
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
NMI backtrace for cpu 1
CPU: 1 PID: 18509 Comm: syz-executor.5 Not tainted 4.19.81 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold+0x63/0xa4 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x189/0x1d5 kernel/rcu/tree.c:1340
 print_cpu_stall kernel/rcu/tree.c:1478 [inline]
 check_cpu_stall kernel/rcu/tree.c:1550 [inline]
 __rcu_pending kernel/rcu/tree.c:3293 [inline]
 rcu_pending kernel/rcu/tree.c:3336 [inline]
 rcu_check_callbacks.cold+0x5e3/0xd90 kernel/rcu/tree.c:2682
 update_process_times+0x32/0x80 kernel/time/timer.c:1638
 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:164
 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x33b/0xdc0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline]
 smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1092
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893
 </IRQ>
RIP: 0010:__sanitizer_cov_trace_pc+0x3b/0x50 kernel/kcov.c:106
Code: 65 8b 15 78 26 97 7e 81 e2 00 01 1f 00 75 2b 8b 90 d0 12 00 00 83 fa 02 75 20 48 8b 88 d8 12 00 00 8b 80 d4 12 00 00 48 8b 11 <48> 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 5d c3 0f 1f 00 65
RSP: 0018:ffff8880a7e8f048 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000040000 RBX: ffff8880a7e8f2c8 RCX: ffffc90010cd6000
RDX: 000000000003ffff RSI: ffffffff81863bfc RDI: 0000000000000005
RBP: ffff8880a7e8f048 R08: ffff88809f9542c0 R09: 0000000000000004
R10: ffffed1015d24732 R11: ffff8880ae923993 R12: ffff88809116a0c0
R13: ffff888093534d80 R14: ffff8880a7e8f2d0 R15: 0000000000000000
 tsk_is_oom_victim include/linux/oom.h:66 [inline]
 oom_evaluate_task+0xdc/0x540 mm/oom_kill.c:329
 mem_cgroup_scan_tasks+0xcc/0x180 mm/memcontrol.c:1106
 select_bad_process mm/oom_kill.c:373 [inline]
 out_of_memory mm/oom_kill.c:1116 [inline]
 out_of_memory+0x27a/0x1330 mm/oom_kill.c:1062
 mem_cgroup_out_of_memory+0x1d2/0x240 mm/memcontrol.c:1416
 mem_cgroup_oom mm/memcontrol.c:1742 [inline]
 try_charge+0xef7/0x1480 mm/memcontrol.c:2304
 mem_cgroup_try_charge+0x259/0x6b0 mm/memcontrol.c:5982
 mem_cgroup_try_charge_delay+0x1f/0xa0 mm/memcontrol.c:5997
 wp_page_copy+0x430/0x16a0 mm/memory.c:2520
 do_wp_page+0x57d/0x10b0 mm/memory.c:2799
 handle_pte_fault mm/memory.c:4057 [inline]
 __handle_mm_fault+0x2305/0x3f80 mm/memory.c:4165
 handle_mm_fault+0x1b5/0x690 mm/memory.c:4202
 __do_page_fault+0x62a/0xe90 arch/x86/mm/fault.c:1390
 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1465
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1204
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:181
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 83
RSP: 0018:ffff8880a7e8fab8 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 0000000000001000 RCX: 0000000000000500
RDX: 0000000000001000 RSI: ffff8880976bab00 RDI: 0000000020399000
RBP: ffff8880a7e8faf0 R08: ffffed1012ed7600 R09: 0000000000000000
R10: ffffed1012ed75ff R11: ffff8880976bafff R12: 0000000020398500
R13: ffff8880976ba000 R14: 0000000020399500 R15: 00007ffffffff000
 copy_page_to_iter_iovec lib/iov_iter.c:206 [inline]
 copy_page_to_iter+0x329/0xd50 lib/iov_iter.c:853
 pipe_to_user+0xb4/0x170 fs/splice.c:1238
 splice_from_pipe_feed fs/splice.c:503 [inline]
 __splice_from_pipe+0x391/0x7d0 fs/splice.c:627
 vmsplice_to_user fs/splice.c:1262 [inline]
 do_vmsplice.part.0+0x249/0x2b0 fs/splice.c:1340
 do_vmsplice fs/splice.c:1334 [inline]
 __do_sys_vmsplice+0x1b9/0x210 fs/splice.c:1361
 __se_sys_vmsplice fs/splice.c:1343 [inline]
 __x64_sys_vmsplice+0x97/0xf0 fs/splice.c:1343
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a219
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fcc373bbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000116
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a219
RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcc373bc6d4
R13: 00000000004ca1a4 R14: 00000000004e21c0 R15: 00000000ffffffff