general protection fault in cpuacct

Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported
kernel panic: stack is corrupted in udp4_lib_lookup2 net				11	1949d	1946d

1949d

1946d

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in cpuacct_charge (3) kernel				2	1676d	1701d	0/26	auto-closed as invalid on 2019/12/30 00:15
upstream	general protection fault in cpuacct_charge kernel				1	2110d	2109d	8/26	fixed on 2018/08/07 13:43

kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 64 Comm: ksoftirq�%1 Not tainted 5.0.0-rc2+ #26 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:task_css include/linux/cgroup.h:479 [inline] RIP: 0010:task_ca kernel/sched/cpuacct.c:43 [inline] RIP: 0010:cpuacct_charge+0x19a/0x440 kernel/sched/cpuacct.c:349 Code: ac 8a 08 00 85 c0 74 0d 80 3d 92 5e f5 08 00 0f 84 99 01 00 00 49 8d 7e 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 42 02 00 00 4d 8b 66 10 4d 85 e4 0f 84 a5 00 00 RSP: 0018:ffff8880ae707560 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: ffff8880a94ca440 RCX: 1ffffffff14b7b97 RDX: 0000000000000002 RSI: 00000000ffff8880 RDI: 0000000000000010 RBP: ffff8880ae7075f8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8880ae707520 R12: dffffc0000000000 R13: 4dc81feac6e948e1 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000068 CR3: 0000000092a4a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> cgroup_account_cputime include/linux/cgroup.h:762 [inline] update_curr+0x371/0xbc0 kernel/sched/fair.c:830 enqueue_entity+0x3e5/0x20b0 kernel/sched/fair.c:3880 enqueue_task_fair+0x237/0x10c0 kernel/sched/fair.c:5133 enqueue_task kernel/sched/core.c:730 [inline] activate_task+0x11d/0x470 kernel/sched/core.c:751 ttwu_activate kernel/sched/core.c:1643 [inline] ttwu_do_activate+0xd4/0x1f0 kernel/sched/core.c:1702 ttwu_queue kernel/sched/core.c:1847 [inline] try_to_wake_up+0x997/0x1480 kernel/sched/core.c:2057 wake_up_process+0x10/0x20 kernel/sched/core.c:2129 hrtimer_wakeup+0x48/0x60 kernel/time/hrtimer.c:1637 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x3a7/0x1050 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x18d/0x760 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 </IRQ> Modules linked in: ---[ end trace baebb919e60cf735 ]--- RIP: 0010:task_css include/linux/cgroup.h:479 [inline] RIP: 0010:task_ca kernel/sched/cpuacct.c:43 [inline] RIP: 0010:cpuacct_charge+0x19a/0x440 kernel/sched/cpuacct.c:349 Code: ac 8a 08 00 85 c0 74 0d 80 3d 92 5e f5 08 00 0f 84 99 01 00 00 49 8d 7e 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 42 02 00 00 4d 8b 66 10 4d 85 e4 0f 84 a5 00 00 RSP: 0018:ffff8880ae707560 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: ffff8880a94ca440 RCX: 1ffffffff14b7b97 RDX: 0000000000000002 RSI: 00000000ffff8880 RDI: 0000000000000010 RBP: ffff8880ae7075f8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8880ae707520 R12: dffffc0000000000 R13: 4dc81feac6e948e1 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000068 CR3: 0000000092a4a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400