lkml.org 
[lkml]   [2017]   [Sep]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2] zram: fix null dereference of handle
On (09/20/17 15:02), Minchan Kim wrote:
> For the testing, I found handle passed to zs_map_object in __zram_bvec_read
> is NULL so that kernel goes the Oops by pin_object.
>
> The reason is there is no routine to check the slot's freeing
> after getting the slot's lock. This patch fixes it.
>
> * From v1:
> * remove unlikely branch - Sergey
> * In !handle case, use 0 instead of zram_get_element - Sergey
>
> Fixes: 1f7319c74275 ("zram: partial IO refactoring")
> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
> Signed-off-by: Minchan Kim <minchan@kernel.org>

Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>

-ss

\
 
 \ /
  Last update: 2017-09-20 08:29    [W:0.032 / U:0.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site