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swtpm: log error if broken header is detected

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Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
This commit is contained in:
Stefan Berger 2017-06-15 19:01:37 -04:00
parent 1ff4c6c54a
commit 8a1de2ce47
1 changed files with 8 additions and 2 deletions
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10
src/swtpm/swtpm_nvfile.c
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@ -772,11 +772,17 @@ SWTPM_NVRAM_CheckHeader(unsigned char *data, uint32_t length,
{
blobheader *bh = (blobheader *)data;
if (length < sizeof(bh))
if (length < sizeof(bh)) {
logprintf(STDERR_FILENO,
"not enough bytes for header: %u\n", length);
return TPM_BAD_PARAMETER;
}
if (ntohl(bh->totlen) != length)
if (ntohl(bh->totlen) != length) {
logprintf(STDERR_FILENO,
"broken header: bh->totlen %u != %u\n", htonl(bh->totlen), length);
return TPM_BAD_PARAMETER;
}
if (bh->min_version > BLOB_HEADER_VERSION) {
logprintf(STDERR_FILENO,