staging: android: ashmem: Fix a race condition in pin ioctls

Browse source

ashmem_pin_unpin() reads asma->file and asma->size before taking the
ashmem_mutex, so it can race with other operations that modify them.

Build-tested only.

Cc: stable@vger.kernel.org
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Ben Hutchings 2018-02-04 02:06:27 +00:00 • committed by Greg Kroah-Hartman

parent 02b7b2844c

commit ce8a3a9e76

1 changed files with 11 additions and 8 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

drivers/staging/android/ashmem.c

View file