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| author | Kinga Tanska <kinga.tanska@intel.com> | 2023-05-11 04:55:13 +0200 |
|---|---|---|
| committer | Jes Sorensen <jes@trained-monkey.org> | 2023-09-01 18:09:07 +0200 |
| commit | 5ccd457b29809bee442749b5f66ac27ebba4a72d (patch) | |
| tree | 15f56f0b9e5c82a9298c04591f0c1c4333c6ea1d /platform-intel.h | |
| parent | Fix unsafe string functions (diff) | |
| download | mdadm-5ccd457b29809bee442749b5f66ac27ebba4a72d.tar.xz mdadm-5ccd457b29809bee442749b5f66ac27ebba4a72d.zip | |
platform-intel: limit guid length
Moving GUID_STR_MAX to header to use it as
a length limitation for snprintf function.
Signed-off-by: Kinga Tanska <kinga.tanska@intel.com>
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
Diffstat (limited to 'platform-intel.h')
| -rw-r--r-- | platform-intel.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/platform-intel.h b/platform-intel.h index 2c0f4e39..ba97fb04 100644 --- a/platform-intel.h +++ b/platform-intel.h @@ -19,6 +19,9 @@ #include <asm/types.h> #include <strings.h> +/* according to GUID format: "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" */ +#define GUID_STR_MAX 37 + /* The IMSM Capability (IMSM AHCI and ISCU OROM/EFI variable) Version Table definition */ struct imsm_orom { __u8 signature[4]; @@ -229,7 +232,7 @@ extern struct orom_entry *orom_entries; static inline char *guid_str(char *buf, struct efi_guid guid) { - sprintf(buf, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", + snprintf(buf, GUID_STR_MAX, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x", guid.b[3], guid.b[2], guid.b[1], guid.b[0], guid.b[5], guid.b[4], guid.b[7], guid.b[6], guid.b[8], guid.b[9], guid.b[10], guid.b[11], |