| commit | 455b6c9112eff8d249e32ba165742085678a80a4 | [log] [tgz] |
|---|---|---|
| author | Roberto Sassu <roberto.sassu@huawei.com> | Fri Sep 04 11:23:30 2020 +0200 |
| committer | Mimi Zohar <zohar@linux.ibm.com> | Tue Sep 15 13:47:42 2020 -0400 |
| tree | faed71382cd53d9bcd78a58328cdb1430c67b64c | |
| parent | 4be92db3b5667f3a5c874a04635b037dc5e3f373 [diff] |
evm: Check size of security.evm before using it
This patch checks the size for the EVM_IMA_XATTR_DIGSIG and
EVM_XATTR_PORTABLE_DIGSIG types to ensure that the algorithm is read from
the buffer returned by vfs_getxattr_alloc().
Cc: stable@vger.kernel.org # 4.19.x
Fixes: 5feeb61183dde ("evm: Allow non-SHA1 digital signatures")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>