lkml.org 
[lkml]   [2019]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] tpm: fix a race between poll and write in tpm-dev-common
On Mon, Mar 18, 2019 at 03:18:16PM -0700, Tadeusz Struk wrote:
> Since the poll returns EPOLLIN base on the state of two
> variables, the response_read being false and the
> response_length > 0 the poll needs to take the buffer_mutex
> after it is woken up.
>
> Fixes: 9488585b21bef0df12 ("tpm: add support for partial reads")
> Reported-by: Mantas Mikulėnas <grawity@gmail.com>
> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>

Also, please add Cc: stable@vger.kernel.org as the first tag.

/Jarkko

\
 
 \ /
  Last update: 2019-03-21 14:35    [W:0.445 / U:0.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site