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Merge "soc: qcom: hwkm: check key size before unwrap"

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qctecmdr 2020-06-24 22:34:01 -07:00 • committed by Gerrit - the friendly Code Review server
commit fac58968a5
1 changed files with 8 additions and 0 deletions
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8
drivers/soc/qcom/hwkm.c
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@ -44,6 +44,8 @@ int retries;
#define WAIT_UNTIL(cond) \
for (retries = 0; !(cond) && (retries < MAX_RETRIES); retries++)
#define EXPECTED_UNWRAP_KEY_SIZE 68
#define ICEMEM_SLAVE_TPKEY_VAL 0x192
#define ICEMEM_SLAVE_TPKEY_SLOT 0x92
#define KM_MASTER_TPKEY_SLOT 10
@ -473,6 +475,12 @@ static int qti_handle_key_unwrap_import(const struct hwkm_cmd *cmd_in,
pr_debug("%s: KEY_UNWRAP_IMPORT start\n", __func__);
if (cmd_in->unwrap.sz != EXPECTED_UNWRAP_KEY_SIZE) {
pr_err("%s: Invalid key size - %d\n", __func__,
cmd_in->unwrap.sz);
return -EINVAL;
}
memcpy(cmd, &operation, OPERATION_INFO_LENGTH);
memcpy(cmd + COMMAND_WRAPPED_KEY_IDX, cmd_in->unwrap.wkb,
cmd_in->unwrap.sz);