diff options
| author | Fred Reitberger <reitbergerfred@gmail.com> | 2023-02-08 16:05:08 -0500 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-02-10 15:52:40 +0000 |
| commit | f9eeded219d7e75154989d11ec1c70445523fada (patch) | |
| tree | 2fa5e81dd9061c39f3ad7d2821985b23850b09e0 /src/drivers/intel/fsp2_0 | |
| parent | 84aa9a74e8aa70167ad5ee82e06a435d731c573a (diff) | |
drivers/fsp2: Don't print garbage if the FSP signature doesn't match
Using a &uint64_t as a string argument does not include the required
NULL character termination. Update the format string to only print the 8
desired characters and not continue printing stack memory until a NULL
is found.
Before:
[EMERG] Invalid UPD signature! FSP provided "AMD_01_M;....`", expected was "CEZANE_MAMD_01_M;....`".
After:
[EMERG] Invalid UPD signature! FSP provided "AMD_01_M", expected was "CEZANE_M".
Signed-off-by: Fred Reitberger <reitbergerfred@gmail.com>
Change-Id: Ib334daa8518a92e0cf3d22c4d95908f4c84afe04
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72911
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/drivers/intel/fsp2_0')
| -rw-r--r-- | src/drivers/intel/fsp2_0/util.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/drivers/intel/fsp2_0/util.c b/src/drivers/intel/fsp2_0/util.c index 1dedb6587f..7fa2af4722 100644 --- a/src/drivers/intel/fsp2_0/util.c +++ b/src/drivers/intel/fsp2_0/util.c @@ -183,7 +183,7 @@ void fsp_verify_upd_header_signature(uint64_t upd_signature, uint64_t expected_s /* The UPD signatures are non-zero-terminated ASCII stored as a little endian uint64_t, so this needs some casts. */ die_with_post_code(POST_INVALID_VENDOR_BINARY, - "Invalid UPD signature! FSP provided \"%8s\", expected was \"%8s\".\n", + "Invalid UPD signature! FSP provided \"%.8s\", expected was \"%.8s\".\n", (char *)&upd_signature, (char *)&expected_signature); } |