Re: [PATCH (resend)] reiserfs: update reiserfs_xattrs_initialized() condition

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On 2021/03/25 15:19, Tetsuo Handa wrote:
> On 2021/03/25 0:20, Jeff Mahoney wrote:
>> Tetsuo's patch is fine but it needs a similar fix in reiserfs_xattr_set,
>> as you noted.  Whether it's required is another question.  ReiserFS is
>> absolutely loaded with fuzzer bugs.
> Can we apply this patch as-is? Since this is currently 5th top crasher,
> applying this patch as soon as possible helps utilizing syzbot's resource
> for finding further bugs.

Will you explain why we need a similar fix in reiserfs_xattr_set() ?

Debug print patch ( ) and
console output ( ) says
"reiserfs_xattr_init returns -95" which indicates that reiserfs_fill_super() from
mount attempts for such crafted filesystem images fails with -EOPNOTSUPP error.

Given that such crafted filesystem images cannot be mounted,
how can reiserfs_xattr_set() be called and cause problems?

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