diff options
author | Dan Carpenter <dan.carpenter@oracle.com> | 2019-05-22 11:45:13 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-22 08:18:25 +0200 |
commit | f4678b7808e7783d67cc02f41f6dca3f158a9a5f (patch) | |
tree | 7005e39b06fe56219542ed4b473aff6cb50f404c /arch/x86 | |
parent | e2f9c0f7345435fcff108e24372f426f601fa661 (diff) |
mISDN: make sure device name is NUL terminated
[ Upstream commit ccfb62f27beb295103e9392462b20a6ed807d0ea ]
The user can change the device_name with the IMSETDEVNAME ioctl, but we
need to ensure that the user's name is NUL terminated. Otherwise it
could result in a buffer overflow when we copy the name back to the user
with IMGETDEVINFO ioctl.
I also changed two strcpy() calls which handle the name to strscpy().
Hopefully, there aren't any other ways to create a too long name, but
it's nice to do this as a kernel hardening measure.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/x86')
0 files changed, 0 insertions, 0 deletions