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| author |   Javier Martinez Canillas <javier@osg.samsung.com> | 2015-10-06 15:23:36 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-10-06 16:38:40 -0700 |
| commit | 5b21e3c740b770fb2548a5a8ea66e544d114d0a8 (patch) | |
| tree | 083a82b82f4fcb4b4c24e6651126ed31036cd9df /Documentation/circular-buffers.txt | |
| parent | Input: add support for ROHM BU21023/24 touchscreen (diff) | |
| download | linux-dev-5b21e3c740b770fb2548a5a8ea66e544d114d0a8.tar.xz linux-dev-5b21e3c740b770fb2548a5a8ea66e544d114d0a8.zip | |
Input: joydev - fix possible ERR_PTR() dereferencing
Commit 5702222c9a7a ("Input: joydev - use memdup_user() to duplicate
memory from user-space") changed the kmalloc() and copy_from_user()
with a single call to memdup_user() but wrongly used the same error
path than the old code in which the buffer allocated by kmalloc() was
freed if copy_from_user() failed.
This is of course wrong since if memdup_user() fails, no memory was
allocated and the error in the error-valued pointer should be returned.
Fixes: 5702222c9a7a ("Input: joydev - use memdup_user() to duplicate
memory from user-space")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/circular-buffers.txt')
0 files changed, 0 insertions, 0 deletions