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(parent: 4111d9a) | patch
staging: android: ashmem: Fix a race condition in pin ioctls
authorBen Hutchings <ben@decadent.org.uk>
Sun, 4 Feb 2018 02:06:27 +0000 (02:06 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 16 Feb 2018 16:50:09 +0000 (17:50 +0100)
commit66e2e985d5319a1cbda167567405642b1b983b8e
tree4b391937fe744d7261b670002b1e67c7dff73a8ctree | snapshot
parent4111d9a0829fd3b2cf9844148a4c6b1cff5f1afbcommit | diff
staging: android: ashmem: Fix a race condition in pin ioctls

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>
drivers/staging/android/ashmem.c diff | blob | history
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