* Re: BUG: unable to handle kernel paging request in ipcget
[not found] <001a114441286c0f4f0560fcf1d8@google.com>
@ 2017-12-23 9:59 ` Manfred Spraul
2017-12-23 10:07 ` Dmitry Vyukov
0 siblings, 1 reply; 4+ messages in thread
From: Manfred Spraul @ 2017-12-23 9:59 UTC (permalink / raw)
To: syzbot, akpm, dave, gregkh, guillaume.knispel, keescook,
linux-kernel, mhocko, sfr, syzkaller-bugs, syzkaller
Hi,
On 12/23/2017 08:33 AM, syzbot wrote:
> Hello,
>
> syzkaller hit the following crash on
> 6084b576dca2e898f5c101baef151f7bfdbb606d
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
> compiler: gcc (GCC) 7.1.1 20170620
> .config is attached
> Raw console output is attached.
>
> Unfortunately, I don't have any reproducer for this bug yet.
>
Is one of the recent issues reproducible?
Either something is wrong with the faster ipc_get, or the improved
ipc_get makes issues in other areas visible.
--
Manfred
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: BUG: unable to handle kernel paging request in ipcget
2017-12-23 9:59 ` BUG: unable to handle kernel paging request in ipcget Manfred Spraul
@ 2017-12-23 10:07 ` Dmitry Vyukov
2018-01-02 18:16 ` Kees Cook
0 siblings, 1 reply; 4+ messages in thread
From: Dmitry Vyukov @ 2017-12-23 10:07 UTC (permalink / raw)
To: Manfred Spraul
Cc: syzbot, Andrew Morton, Davidlohr Bueso, Greg Kroah-Hartman,
guillaume.knispel, Kees Cook, LKML, Michal Hocko,
Stephen Rothwell, syzkaller-bugs, syzkaller
On Sat, Dec 23, 2017 at 10:59 AM, Manfred Spraul
<manfred@colorfullife.com> wrote:
> Hi,
>
> On 12/23/2017 08:33 AM, syzbot wrote:
>>
>> Hello,
>>
>> syzkaller hit the following crash on
>> 6084b576dca2e898f5c101baef151f7bfdbb606d
>> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
>> compiler: gcc (GCC) 7.1.1 20170620
>> .config is attached
>> Raw console output is attached.
>>
>> Unfortunately, I don't have any reproducer for this bug yet.
>>
> Is one of the recent issues reproducible?
Which one do you mean?
syzbot always provides up-to-date status of reproducers for all reported bugs.
> Either something is wrong with the faster ipc_get, or the improved ipc_get
> makes issues in other areas visible.
>
> --
> Manfred
>
> --
> You received this message because you are subscribed to the Google Groups
> "syzkaller" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to syzkaller+unsubscribe@googlegroups.com.
>
> For more options, visit https://groups.google.com/d/optout.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: BUG: unable to handle kernel paging request in ipcget
2017-12-23 10:07 ` Dmitry Vyukov
@ 2018-01-02 18:16 ` Kees Cook
2018-01-07 11:19 ` Dmitry Vyukov
0 siblings, 1 reply; 4+ messages in thread
From: Kees Cook @ 2018-01-02 18:16 UTC (permalink / raw)
To: Dmitry Vyukov
Cc: Manfred Spraul, syzbot, Andrew Morton, Davidlohr Bueso,
Greg Kroah-Hartman, Guillaume Knispel, LKML, Michal Hocko,
Stephen Rothwell, syzkaller-bugs, syzkaller
On Sat, Dec 23, 2017 at 2:07 AM, Dmitry Vyukov <dvyukov@google.com> wrote:
> On Sat, Dec 23, 2017 at 10:59 AM, Manfred Spraul
> <manfred@colorfullife.com> wrote:
>> Hi,
>>
>> On 12/23/2017 08:33 AM, syzbot wrote:
>>>
>>> Hello,
>>>
>>> syzkaller hit the following crash on
>>> 6084b576dca2e898f5c101baef151f7bfdbb606d
>>> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
>>> compiler: gcc (GCC) 7.1.1 20170620
>>> .config is attached
>>> Raw console output is attached.
>>>
>>> Unfortunately, I don't have any reproducer for this bug yet.
>>>
>> Is one of the recent issues reproducible?
>
> Which one do you mean?
> syzbot always provides up-to-date status of reproducers for all reported bugs.
>
>> Either something is wrong with the faster ipc_get, or the improved ipc_get
>> makes issues in other areas visible.
>>
>> --
>> Manfred
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "syzkaller" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to syzkaller+unsubscribe@googlegroups.com.
>>
>> For more options, visit https://groups.google.com/d/optout.
Was this report related to the recent set of kmalloc-1024 false positives?
-Kees
--
Kees Cook
Pixel Security
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: BUG: unable to handle kernel paging request in ipcget
2018-01-02 18:16 ` Kees Cook
@ 2018-01-07 11:19 ` Dmitry Vyukov
0 siblings, 0 replies; 4+ messages in thread
From: Dmitry Vyukov @ 2018-01-07 11:19 UTC (permalink / raw)
To: Kees Cook
Cc: Manfred Spraul, syzbot, Andrew Morton, Davidlohr Bueso,
Greg Kroah-Hartman, Guillaume Knispel, LKML, Michal Hocko,
Stephen Rothwell, syzkaller-bugs, syzkaller
On Tue, Jan 2, 2018 at 7:16 PM, Kees Cook <keescook@chromium.org> wrote:
> On Sat, Dec 23, 2017 at 2:07 AM, Dmitry Vyukov <dvyukov@google.com> wrote:
>> On Sat, Dec 23, 2017 at 10:59 AM, Manfred Spraul
>> <manfred@colorfullife.com> wrote:
>>> Hi,
>>>
>>> On 12/23/2017 08:33 AM, syzbot wrote:
>>>>
>>>> Hello,
>>>>
>>>> syzkaller hit the following crash on
>>>> 6084b576dca2e898f5c101baef151f7bfdbb606d
>>>> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
>>>> compiler: gcc (GCC) 7.1.1 20170620
>>>> .config is attached
>>>> Raw console output is attached.
>>>>
>>>> Unfortunately, I don't have any reproducer for this bug yet.
>>>>
>>> Is one of the recent issues reproducible?
>>
>> Which one do you mean?
>> syzbot always provides up-to-date status of reproducers for all reported bugs.
>>
>>> Either something is wrong with the faster ipc_get, or the improved ipc_get
>>> makes issues in other areas visible.
>
> Was this report related to the recent set of kmalloc-1024 false positives?
That's possible. It happened only twice and is unexplainable (right?). Let's do:
#syz fix: crypto: pcrypt - fix freeing pcrypt instances
and see if this happens again after the commit lands.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-01-07 11:19 UTC | newest]
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[not found] <001a114441286c0f4f0560fcf1d8@google.com>
2017-12-23 9:59 ` BUG: unable to handle kernel paging request in ipcget Manfred Spraul
2017-12-23 10:07 ` Dmitry Vyukov
2018-01-02 18:16 ` Kees Cook
2018-01-07 11:19 ` Dmitry Vyukov
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