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| author | Roberto Sassu <roberto.sassu@huawei.com> | 2019-05-29 15:30:33 +0200 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.ibm.com> | 2019-05-29 23:18:25 -0400 |
| commit | 221be106d75c1b511973301542f47d6000d0b63e (patch) | |
| tree | 18f8246e67943de8fc8f5d9ebe2fcb927b8ed391 /security/security.c | |
| parent | f40019475bbbe9b455e7fd4385fcf13896c492ca (diff) | |
evm: check hash algorithm passed to init_desc()
This patch prevents memory access beyond the evm_tfm array by checking the
validity of the index (hash algorithm) passed to init_desc(). The hash
algorithm can be arbitrarily set if the security.ima xattr type is not
EVM_XATTR_HMAC.
Fixes: 5feeb61183dde ("evm: Allow non-SHA1 digital signatures")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'security/security.c')
0 files changed, 0 insertions, 0 deletions