Messages in this thread Patch in this message | | | From | Shailendra Verma <> | Subject | [PATCH 1/1] Fix Kernel Panic due to dereference of the invalid handle. First validate the handle and then derefer it in BUG_ON. | Date | Sat, 17 Jan 2015 11:42:41 +0530 |
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Signed-off-by: Shailendra Verma <shailendra.capricorn@gmail.com> --- drivers/staging/android/ion/ion.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index 296d347..9e56d32 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -536,8 +536,6 @@ void ion_free(struct ion_client *client, struct ion_handle *handle) { bool valid_handle;
- BUG_ON(client != handle->client); - mutex_lock(&client->lock); valid_handle = ion_handle_validate(client, handle);
@@ -547,6 +545,7 @@ void ion_free(struct ion_client *client, struct ion_handle *handle) return; } mutex_unlock(&client->lock); + BUG_ON(client != handle->client); ion_handle_put(handle); } EXPORT_SYMBOL(ion_free); -- 1.7.9.5
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