diff options
| author | Michael Roth <michael.roth@amd.com> | 2025-07-28 18:43:03 -0500 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-08-16 17:24:31 +0800 |
| commit | ed53a5050f42a3243a7ed8dfa49030e54034b952 (patch) | |
| tree | 3183920d7c8899815649a2548f41f5baa4890d9f /drivers/crypto/ccp | |
| parent | 4e53be21dd0315c00eaf40cc8f8c0facd4d9a6b2 (diff) | |
crypto: ccp - Fix checks for SNP_VLEK_LOAD input buffer length
The SNP_VLEK_LOAD IOCTL currently fails due to sev_cmd_buffer_len()
returning the default expected buffer length of 0 instead of the correct
value, which would be sizeof(struct sev_user_data_snp_vlek_load). Add
specific handling for SNP_VLEK_LOAD so the correct expected size is
returned.
Reported-by: Diego GonzalezVillalobos <Diego.GonzalezVillalobos@amd.com>
Cc: Diego GonzalezVillalobos <Diego.GonzalezVillalobos@amd.com>
Fixes: 332d2c1d713e ("crypto: ccp: Add the SNP_VLEK_LOAD command")
Signed-off-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/ccp')
| -rw-r--r-- | drivers/crypto/ccp/sev-dev.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index 334405461657..4f000dc2e639 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -234,6 +234,7 @@ static int sev_cmd_buffer_len(int cmd) case SEV_CMD_SNP_CONFIG: return sizeof(struct sev_user_data_snp_config); case SEV_CMD_SNP_COMMIT: return sizeof(struct sev_data_snp_commit); case SEV_CMD_SNP_FEATURE_INFO: return sizeof(struct sev_data_snp_feature_info); + case SEV_CMD_SNP_VLEK_LOAD: return sizeof(struct sev_user_data_snp_vlek_load); default: return 0; } |