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| author | Igor Opaniuk <igor.opaniuk@toradex.com> | 2020-11-13 14:11:10 +0200 |
|---|---|---|
| committer | Igor Opaniuk <igor.opaniuk@toradex.com> | 2020-11-13 14:17:32 +0200 |
| commit | 3b59d4725be760cd276094079b4fbe7bd44e1464 (patch) | |
| tree | 37a4892c12efe64a69453ecdb694866dd18dc4f5 /security/integrity/evm/evm_main.c | |
| parent | 4d47b797d6bb1db34ddf702f2cf78104be135a8f (diff) | |
| parent | 70d1232fdbe28e4c765c4cfc3cc5c7580959d5e0 (diff) | |
Merge commit '70d1232fdbe28e4c765c4cfc3cc5c7580959d5e0' into toradex_5.4-2.1.x-imx
Update 5.4-2.1.x-imx to v5.4.74 from [1].
[1] https://github.com/Freescale/linux-fslc
Diffstat (limited to 'security/integrity/evm/evm_main.c')
| -rw-r--r-- | security/integrity/evm/evm_main.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c index a2c393385db0..615094eda36d 100644 --- a/security/integrity/evm/evm_main.c +++ b/security/integrity/evm/evm_main.c @@ -183,6 +183,12 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry, break; case EVM_IMA_XATTR_DIGSIG: case EVM_XATTR_PORTABLE_DIGSIG: + /* accept xattr with non-empty signature field */ + if (xattr_len <= sizeof(struct signature_v2_hdr)) { + evm_status = INTEGRITY_FAIL; + goto out; + } + hdr = (struct signature_v2_hdr *)xattr_data; digest.hdr.algo = hdr->hash_algo; rc = evm_calc_hash(dentry, xattr_name, xattr_value, |