diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-08-02 11:24:47 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-02 10:42:25 +0200 |
| commit | f019f07ecf6a6b8bd6d7853bce70925d90af02d1 (patch) | |
| tree | 306aaab3bd5fbb0dd5939761af519eeba6e6a505 /drivers/misc | |
| parent | c01513b4b29953e6ba8a8d8de77fb5ca2f01c48f (diff) | |
uio: potential double frees if __uio_register_device() fails
The uio_unregister_device() function assumes that if "info->uio_dev" is
non-NULL that means "info" is fully allocated. Setting info->uio_de
has to be the last thing in the function.
In the current code, if request_threaded_irq() fails then we return with
info->uio_dev set to non-NULL but info is not fully allocated and it can
lead to double frees.
Fixes: beafc54c4e2f ("UIO: Add the User IO core code")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
0 files changed, 0 insertions, 0 deletions