diff options
Diffstat (limited to 'drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c')
| -rw-r--r-- | drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c index 40b482198ebc..df9c2b8747e6 100644 --- a/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c +++ b/drivers/crypto/marvell/octeontx/otx_cptpf_ucode.c @@ -97,7 +97,7 @@ static int dev_supports_eng_type(struct otx_cpt_eng_grps *eng_grps, static void set_ucode_filename(struct otx_cpt_ucode *ucode, const char *filename) { - strlcpy(ucode->filename, filename, OTX_CPT_UCODE_NAME_LENGTH); + strscpy(ucode->filename, filename, OTX_CPT_UCODE_NAME_LENGTH); } static char *get_eng_type_str(int eng_type) @@ -138,7 +138,7 @@ static int get_ucode_type(struct otx_cpt_ucode_hdr *ucode_hdr, int *ucode_type) u32 i, val = 0; u8 nn; - strlcpy(tmp_ver_str, ucode_hdr->ver_str, OTX_CPT_UCODE_VER_STR_SZ); + strscpy(tmp_ver_str, ucode_hdr->ver_str, OTX_CPT_UCODE_VER_STR_SZ); for (i = 0; i < strlen(tmp_ver_str); i++) tmp_ver_str[i] = tolower(tmp_ver_str[i]); @@ -286,6 +286,7 @@ static int process_tar_file(struct device *dev, struct tar_ucode_info_t *tar_info; struct otx_cpt_ucode_hdr *ucode_hdr; int ucode_type, ucode_size; + unsigned int code_length; /* * If size is less than microcode header size then don't report @@ -303,7 +304,13 @@ static int process_tar_file(struct device *dev, if (get_ucode_type(ucode_hdr, &ucode_type)) return 0; - ucode_size = ntohl(ucode_hdr->code_length) * 2; + code_length = ntohl(ucode_hdr->code_length); + if (code_length >= INT_MAX / 2) { + dev_err(dev, "Invalid code_length %u\n", code_length); + return -EINVAL; + } + + ucode_size = code_length * 2; if (!ucode_size || (size < round_up(ucode_size, 16) + sizeof(struct otx_cpt_ucode_hdr) + OTX_CPT_UCODE_SIGN_LEN)) { dev_err(dev, "Ucode %s invalid size\n", filename); @@ -886,6 +893,7 @@ static int ucode_load(struct device *dev, struct otx_cpt_ucode *ucode, { struct otx_cpt_ucode_hdr *ucode_hdr; const struct firmware *fw; + unsigned int code_length; int ret; set_ucode_filename(ucode, ucode_filename); @@ -896,7 +904,13 @@ static int ucode_load(struct device *dev, struct otx_cpt_ucode *ucode, ucode_hdr = (struct otx_cpt_ucode_hdr *) fw->data; memcpy(ucode->ver_str, ucode_hdr->ver_str, OTX_CPT_UCODE_VER_STR_SZ); ucode->ver_num = ucode_hdr->ver_num; - ucode->size = ntohl(ucode_hdr->code_length) * 2; + code_length = ntohl(ucode_hdr->code_length); + if (code_length >= INT_MAX / 2) { + dev_err(dev, "Ucode invalid code_length %u\n", code_length); + ret = -EINVAL; + goto release_fw; + } + ucode->size = code_length * 2; if (!ucode->size || (fw->size < round_up(ucode->size, 16) + sizeof(struct otx_cpt_ucode_hdr) + OTX_CPT_UCODE_SIGN_LEN)) { dev_err(dev, "Ucode %s invalid size\n", ucode_filename); @@ -1328,7 +1342,7 @@ static ssize_t ucode_load_store(struct device *dev, eng_grps = container_of(attr, struct otx_cpt_eng_grps, ucode_load_attr); err_msg = "Invalid engine group format"; - strlcpy(tmp_buf, buf, OTX_CPT_UCODE_NAME_LENGTH); + strscpy(tmp_buf, buf, OTX_CPT_UCODE_NAME_LENGTH); start = tmp_buf; has_se = has_ie = has_ae = false; |