Re: btrfs size overflow bug since 4.2.6-hardened-r6

"PaX Team" <[email protected]> Sat, 05 Mar 2016 03:54:10 +0100
Newsgroups gmane.linux.gentoo.hardened
Message-ID <[email protected]>
On 3 Mar 2016 at 17:44, ingo.schmitt-47WN3PJgA6J/[email protected] wrote:

> I'm still facing a bug with btrfs that
> occurs since 4.2.6-hardened-r6 till 4.4.2.
> 
> An similar bug has been patched already
> https://patchwork.kernel.org/patch/7582351/

it doesn't look like it's the same bug (we've carried that fix for some time
now anyway), so let's investigate it first. can you print out the values of
extent_start and btrfs_file_extent_offset(leaf, fi) before line 913?