ACK/cmnt: [SRU][Trusty][PATCH 0/2] Fix for CVE-2017-12190

[Stefan Bader]

On 08.12.2017 13:37, Kleber Sacilotto de Souza wrote:
> Patch 1/2 is a simple backport to adjust for the file name and context.
> 
> Patch 2/2 needed backport to adjust for context, and because Xenial kernel is
> still using page_cache_release() instead of put_page().

You men Trusty kernel, right? I take it that put_page and page_cache_release end
up being the same thing? Otherwise maybe the two put_page calls added should
have been page_cache_release instead. If its the same it does not matter really.

For that case ...
> 
> https://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-12190.html
> 
> Al Viro (1):
>   more bio_map_user_iov() leak fixes
> 
> Vitaly Mayatskikh (1):
>   fix unbalanced page refcounting in bio_map_user_iov
> 
>  fs/bio.c | 22 +++++++++++++++++-----
>  1 file changed, 17 insertions(+), 5 deletions(-)
> 
Acked-by: Stefan Bader <stefan.bader at canonical.com>


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