diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-09-22 23:43:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-25 10:57:13 +0200 |
| commit | fa1ed74eb1c233be6131ec92df21ab46499a15b6 (patch) | |
| tree | 8f45e2a37fbbe8bbdf9825c6ebe5974d29e304f0 /lib/find_bit.c | |
| parent | 57999d1107c1e60c2ca7088f2ac0f819e2f554b3 (diff) | |
USB: devio: Don't corrupt user memory
The user buffer has "uurb->buffer_length" bytes. If the kernel has more
information than that, we should truncate it instead of writing past
the end of the user's buffer. I added a WARN_ONCE() to help the user
debug the issue.
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/find_bit.c')
0 files changed, 0 insertions, 0 deletions