* BUG: corrupted list in account_entity_enqueue
@ 2018-12-31 7:10 syzbot
2019-01-02 17:02 ` syzbot
0 siblings, 1 reply; 3+ messages in thread
From: syzbot @ 2018-12-31 7:10 UTC (permalink / raw)
To: linux-kernel, syzkaller-bugs, tglx
Hello,
syzbot found the following crash on:
HEAD commit: 00c569b567c7 Merge tag 'locks-v4.21-1' of git://git.kernel..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=136d858f400000
kernel config: https://syzkaller.appspot.com/x/.config?x=fbee5876573727cd
dashboard link: https://syzkaller.appspot.com/bug?extid=14005fa30c9a07192934
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+14005fa30c9a07192934@syzkaller.appspotmail.com
attempt to access beyond end of device
list_add corruption. next->prev should be prev (ffff8880ae62d8d8), but was
0000000000000000. (next=ffff8880a9e1e330).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:25!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 4.20.0+ #393
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__list_add_valid.cold.0+0xf/0x25 lib/list_debug.c:23
Code: e8 23 0b 32 fe e9 68 ff ff ff e8 19 0b 32 fe eb c9 4c 89 e7 e8 0f 0b
32 fe eb 97 48 89 d9 48 c7 c7 40 c3 80 88 e8 32 ef d4 fd <0f> 0b 48 89 f1
48 c7 c7 00 c4 80 88 48 89 de e8 1e ef d4 fd 0f 0b
RSP: 0018:ffff8880ae607218 EFLAGS: 00010082
RAX: 0000000000000075 RBX: ffff8880a9e1e330 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81683015 RDI: 0000000000000005
RBP: ffff8880ae607230 R08: ffff8880a9e1c240 R09: ffffed1015cc5020
R10: ffffed1015cc5020 R11: ffff8880ae628107 R12: ffff888059bac2f0
R13: 1ffff11015cc0e4b R14: ffff8880ae6072b8 R15: ffff888059bac2f0
FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe5cdd85018 CR3: 000000008679a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
__list_add include/linux/list.h:60 [inline]
list_add include/linux/list.h:79 [inline]
account_entity_enqueue+0x3a3/0x660 kernel/sched/fair.c:2679
enqueue_entity+0x2af/0x1ff0 kernel/sched/fair.c:3903
enqueue_task_fair+0x288/0x11f0 kernel/sched/fair.c:5134
enqueue_task kernel/sched/core.c:730 [inline]
activate_task+0x136/0x430 kernel/sched/core.c:751
ttwu_activate kernel/sched/core.c:1643 [inline]
ttwu_do_activate+0xd5/0x1f0 kernel/sched/core.c:1702
ttwu_queue kernel/sched/core.c:1847 [inline]
try_to_wake_up+0x9a3/0x1460 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+0x41c/0x10d0 kernel/time/hrtimer.c:1451
hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1509
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline]
smp_apic_timer_interrupt+0x1a1/0x760 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 8b80f5ec9872c871 ]---
RIP: 0010:__list_add_valid.cold.0+0xf/0x25 lib/list_debug.c:23
Code: e8 23 0b 32 fe e9 68 ff ff ff e8 19 0b 32 fe eb c9 4c 89 e7 e8 0f 0b
32 fe eb 97 48 89 d9 48 c7 c7 40 c3 80 88 e8 32 ef d4 fd <0f> 0b 48 89 f1
48 c7 c7 00 c4 80 88 48 89 de e8 1e ef d4 fd 0f 0b
RSP: 0018:ffff8880ae607218 EFLAGS: 00010082
RAX: 0000000000000075 RBX: ffff8880a9e1e330 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81683015 RDI: 0000000000000005
RBP: ffff8880ae607230 R08: ffff8880a9e1c240 R09: ffffed1015cc5020
R10: ffffed1015cc5020 R11: ffff8880ae628107 R12: ffff888059bac2f0
R13: 1ffff11015cc0e4b R14: ffff8880ae6072b8 R15: ffff888059bac2f0
FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe5cdd85018 CR3: 000000008679a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
syzbot.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: BUG: corrupted list in account_entity_enqueue
2018-12-31 7:10 BUG: corrupted list in account_entity_enqueue syzbot
@ 2019-01-02 17:02 ` syzbot
2019-01-04 11:12 ` Dmitry Vyukov
0 siblings, 1 reply; 3+ messages in thread
From: syzbot @ 2019-01-02 17:02 UTC (permalink / raw)
To: linux-kernel, syzkaller-bugs, tglx
syzbot has found a reproducer for the following crash on:
HEAD commit: 4cd1b60def51 Add linux-next specific files for 20190102
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=12b12dbf400000
kernel config: https://syzkaller.appspot.com/x/.config?x=3bf665f887bd3d7e
dashboard link: https://syzkaller.appspot.com/bug?extid=14005fa30c9a07192934
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10621f53400000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=154d0427400000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+14005fa30c9a07192934@syzkaller.appspotmail.com
list_add corruption. next->prev should be prev (ffff8880ae72d8d8), but was
0000000000000610. (next=ffff8880a94b64f0).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:23!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: -1958513720 Comm: \x10\x06 Not tainted 4.20.0-next-20190102 #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__list_add_valid.cold+0xf/0x3c lib/list_debug.c:23
Code: 34 fe eb d5 4c 89 e7 e8 3a 82 34 fe eb a3 4c 89 f7 e8 30 82 34 fe e9
56 ff ff ff 4c 89 e1 48 c7 c7 40 98 81 88 e8 00 cb d6 fd <0f> 0b 48 89 f2
4c 89 e1 4c 89 ee 48 c7 c7 80 99 81 88 e8 e9 ca d6
RSP: 0018:ffff8880ae707648 EFLAGS: 00010086
RAX: 0000000000000075 RBX: ffff8880a4783cc0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8167d786 RDI: ffffed1015ce0ebb
RBP: ffff8880ae707660 R08: 0000000000000075 R09: ffffed1015ce5021
R10: ffffed1015ce5020 R11: ffff8880ae728107 R12: ffff8880a94b64f0
R13: ffff8880a843a530 R14: ffff8880ae7076e8 R15: ffff8880a843a530
FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000068 CR3: 00000000a43c7000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
__list_add include/linux/list.h:60 [inline]
list_add include/linux/list.h:79 [inline]
account_entity_enqueue+0x3a0/0x660 kernel/sched/fair.c:2678
enqueue_entity+0x276/0x20b0 kernel/sched/fair.c:3902
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 21a00246ce9209ce ]---
RIP: 0010:__list_add_valid.cold+0xf/0x3c lib/list_debug.c:23
Code: 34 fe eb d5 4c 89 e7 e8 3a 82 34 fe eb a3 4c 89 f7 e8 30 82 34 fe e9
56 ff ff ff 4c 89 e1 48 c7 c7 40 98 81 88 e8 00 cb d6 fd <0f> 0b 48 89 f2
4c 89 e1 4c 89 ee 48 c7 c7 80 99 81 88 e8 e9 ca d6
RSP: 0018:ffff8880ae707648 EFLAGS: 00010086
RAX: 0000000000000075 RBX: ffff8880a4783cc0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8167d786 RDI: ffffed1015ce0ebb
RBP: ffff8880ae707660 R08: 0000000000000075 R09: ffffed1015ce5021
R10: ffffed1015ce5020 R11: ffff8880ae728107 R12: ffff8880a94b64f0
R13: ffff8880a843a530 R14: ffff8880ae7076e8 R15: ffff8880a843a530
FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000068 CR3: 00000000a43c7000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: BUG: corrupted list in account_entity_enqueue
2019-01-02 17:02 ` syzbot
@ 2019-01-04 11:12 ` Dmitry Vyukov
0 siblings, 0 replies; 3+ messages in thread
From: Dmitry Vyukov @ 2019-01-04 11:12 UTC (permalink / raw)
To: syzbot; +Cc: LKML, syzkaller-bugs, Thomas Gleixner
On Wed, Jan 2, 2019 at 6:02 PM syzbot
<syzbot+14005fa30c9a07192934@syzkaller.appspotmail.com> wrote:
>
> syzbot has found a reproducer for the following crash on:
>
> HEAD commit: 4cd1b60def51 Add linux-next specific files for 20190102
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=12b12dbf400000
> kernel config: https://syzkaller.appspot.com/x/.config?x=3bf665f887bd3d7e
> dashboard link: https://syzkaller.appspot.com/bug?extid=14005fa30c9a07192934
> compiler: gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10621f53400000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=154d0427400000
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+14005fa30c9a07192934@syzkaller.appspotmail.com
Random manifestation of the stack overflow/corruption:
#syz dup: kernel panic: stack is corrupted in udp4_lib_lookup2
See https://groups.google.com/forum/#!msg/syzkaller-bugs/vr87kmG5qRI/31nOcuVsFgAJ
> list_add corruption. next->prev should be prev (ffff8880ae72d8d8), but was
> 0000000000000610. (next=ffff8880a94b64f0).
> ------------[ cut here ]------------
> kernel BUG at lib/list_debug.c:23!
> invalid opcode: 0000 [#1] PREEMPT SMP KASAN
> CPU: 1 PID: -1958513720 Comm: Not tainted 4.20.0-next-20190102 #2
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
> Google 01/01/2011
> RIP: 0010:__list_add_valid.cold+0xf/0x3c lib/list_debug.c:23
> Code: 34 fe eb d5 4c 89 e7 e8 3a 82 34 fe eb a3 4c 89 f7 e8 30 82 34 fe e9
> 56 ff ff ff 4c 89 e1 48 c7 c7 40 98 81 88 e8 00 cb d6 fd <0f> 0b 48 89 f2
> 4c 89 e1 4c 89 ee 48 c7 c7 80 99 81 88 e8 e9 ca d6
> RSP: 0018:ffff8880ae707648 EFLAGS: 00010086
> RAX: 0000000000000075 RBX: ffff8880a4783cc0 RCX: 0000000000000000
> RDX: 0000000000000000 RSI: ffffffff8167d786 RDI: ffffed1015ce0ebb
> RBP: ffff8880ae707660 R08: 0000000000000075 R09: ffffed1015ce5021
> R10: ffffed1015ce5020 R11: ffff8880ae728107 R12: ffff8880a94b64f0
> R13: ffff8880a843a530 R14: ffff8880ae7076e8 R15: ffff8880a843a530
> FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000068 CR3: 00000000a43c7000 CR4: 00000000001406e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Call Trace:
> <IRQ>
> __list_add include/linux/list.h:60 [inline]
> list_add include/linux/list.h:79 [inline]
> account_entity_enqueue+0x3a0/0x660 kernel/sched/fair.c:2678
> enqueue_entity+0x276/0x20b0 kernel/sched/fair.c:3902
> 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 21a00246ce9209ce ]---
> RIP: 0010:__list_add_valid.cold+0xf/0x3c lib/list_debug.c:23
> Code: 34 fe eb d5 4c 89 e7 e8 3a 82 34 fe eb a3 4c 89 f7 e8 30 82 34 fe e9
> 56 ff ff ff 4c 89 e1 48 c7 c7 40 98 81 88 e8 00 cb d6 fd <0f> 0b 48 89 f2
> 4c 89 e1 4c 89 ee 48 c7 c7 80 99 81 88 e8 e9 ca d6
> RSP: 0018:ffff8880ae707648 EFLAGS: 00010086
> RAX: 0000000000000075 RBX: ffff8880a4783cc0 RCX: 0000000000000000
> RDX: 0000000000000000 RSI: ffffffff8167d786 RDI: ffffed1015ce0ebb
> RBP: ffff8880ae707660 R08: 0000000000000075 R09: ffffed1015ce5021
> R10: ffffed1015ce5020 R11: ffff8880ae728107 R12: ffff8880a94b64f0
> R13: ffff8880a843a530 R14: ffff8880ae7076e8 R15: ffff8880a843a530
> FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 0000000000000068 CR3: 00000000a43c7000 CR4: 00000000001406e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
>
> --
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^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-01-04 11:12 UTC | newest]
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2018-12-31 7:10 BUG: corrupted list in account_entity_enqueue syzbot
2019-01-02 17:02 ` syzbot
2019-01-04 11:12 ` Dmitry Vyukov
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