* A list of new findings when fuzzing Linux btrfs module
@ 2018-07-04 17:54 Xu, Wen
2018-07-10 11:13 ` David Sterba
0 siblings, 1 reply; 4+ messages in thread
From: Xu, Wen @ 2018-07-04 17:54 UTC (permalink / raw)
To: Qu Wenruo; +Cc: jbacik, dsterba, linux-btrfs
Hi BTRFS developers,
Here are a list of new issues I found:
200403 BUG() triggered in btrfs_free_dev_extent() when un-mounting a btrfs image
https://bugzilla.kernel.org/show_bug.cgi?id=200403
200405 Potential deadlock in btrfs_tree_lock() when perform writing to btrfs filesystem
https://bugzilla.kernel.org/show_bug.cgi?id=200405
200407 Potential deadlock when mount a btrfs image
https://bugzilla.kernel.org/show_bug.cgi?id=200407
200409 BUG() triggered in read_one_chunk() when mount a btrfs filesystem
https://bugzilla.kernel.org/show_bug.cgi?id=200409
200411 BUG() triggered in walk_up_proc() when mount a btrfs image
https://bugzilla.kernel.org/show_bug.cgi?id=200411
>From my testing, these issues cannot be corrected by latest introduced checks. Thanks!
-Wen
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: A list of new findings when fuzzing Linux btrfs module
2018-07-04 17:54 A list of new findings when fuzzing Linux btrfs module Xu, Wen
@ 2018-07-10 11:13 ` David Sterba
2018-07-27 19:02 ` Xu, Wen
0 siblings, 1 reply; 4+ messages in thread
From: David Sterba @ 2018-07-10 11:13 UTC (permalink / raw)
To: Xu, Wen; +Cc: Qu Wenruo, jbacik, dsterba, linux-btrfs
On Wed, Jul 04, 2018 at 05:54:56PM +0000, Xu, Wen wrote:
> Hi BTRFS developers,
>
> Here are a list of new issues I found:
Thanks for sending the list to the list, hopefully this will make the
bugs more visible as bugzilla gets low attention otherwise.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: A list of new findings when fuzzing Linux btrfs module
2018-07-10 11:13 ` David Sterba
@ 2018-07-27 19:02 ` Xu, Wen
2018-07-27 23:01 ` Qu Wenruo
0 siblings, 1 reply; 4+ messages in thread
From: Xu, Wen @ 2018-07-27 19:02 UTC (permalink / raw)
To: Qu Wenruo; +Cc: jbacik, dsterba, linux-btrfs
Hi Wenruo,
Is there any update or handling with these issues?
Thanks,
Wen
> On Jul 10, 2018, at 7:13 AM, David Sterba <dsterba@suse.cz> wrote:
>
> On Wed, Jul 04, 2018 at 05:54:56PM +0000, Xu, Wen wrote:
>> Hi BTRFS developers,
>>
>> Here are a list of new issues I found:
>
> Thanks for sending the list to the list, hopefully this will make the
> bugs more visible as bugzilla gets low attention otherwise.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: A list of new findings when fuzzing Linux btrfs module
2018-07-27 19:02 ` Xu, Wen
@ 2018-07-27 23:01 ` Qu Wenruo
0 siblings, 0 replies; 4+ messages in thread
From: Qu Wenruo @ 2018-07-27 23:01 UTC (permalink / raw)
To: Xu, Wen; +Cc: jbacik, dsterba, linux-btrfs
[-- Attachment #1.1: Type: text/plain, Size: 1079 bytes --]
On 2018年07月28日 03:02, Xu, Wen wrote:
> Hi Wenruo,
>
> Is there any update or handling with these issues?
Yes, 4 of all 5 newly reported images can be handled with new patches:
[PATCH 0/5] Enhancement for block group/chunk verification
[PATCH 0/2] btrfs: chunk and dev-extent related error handler enhancement
[PATCH] btrfs: tree-checker: Add DATA_RELOC tree to essential non-empty
tree list
However, one special case, "Potential deadlock in btrfs_tree_lock() when
perform writing to btrfs filesystem" is stepping into the deadzone of
extent tree, I tried one patch but it will screw up other code.
I'm still looking into better solution for it.
Thanks,
Qu
>
> Thanks,
> Wen
>
>> On Jul 10, 2018, at 7:13 AM, David Sterba <dsterba@suse.cz> wrote:
>>
>> On Wed, Jul 04, 2018 at 05:54:56PM +0000, Xu, Wen wrote:
>>> Hi BTRFS developers,
>>>
>>> Here are a list of new issues I found:
>>
>> Thanks for sending the list to the list, hopefully this will make the
>> bugs more visible as bugzilla gets low attention otherwise.
>
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-07-28 0:25 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-07-04 17:54 A list of new findings when fuzzing Linux btrfs module Xu, Wen
2018-07-10 11:13 ` David Sterba
2018-07-27 19:02 ` Xu, Wen
2018-07-27 23:01 ` Qu Wenruo
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.