diff options
Diffstat (limited to 'src/boot/efi/vmm.c')
| -rw-r--r-- | src/boot/efi/vmm.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/boot/efi/vmm.c b/src/boot/efi/vmm.c index 60e216d..bfc7acc 100644 --- a/src/boot/efi/vmm.c +++ b/src/boot/efi/vmm.c @@ -241,13 +241,21 @@ static const SmbiosHeader *get_smbios_table(uint8_t type, uint64_t *ret_size_lef size -= header->length; p += header->length; - /* Skip over string table. */ + /* Special case: if there are no strings appended, we'll see two NUL bytes, skip over them */ + if (size >= 2 && p[0] == 0 && p[1] == 0) { + size -= 2; + p += 2; + continue; + } + + /* Skip over a populated string table. */ + bool first = true; for (;;) { const uint8_t *e = memchr(p, 0, size); if (!e) return NULL; - if (e == p) {/* Double NUL byte means we've reached the end of the string table. */ + if (!first && e == p) {/* Double NUL byte means we've reached the end of the string table. */ p++; size--; break; @@ -255,6 +263,7 @@ static const SmbiosHeader *get_smbios_table(uint8_t type, uint64_t *ret_size_lef size -= e + 1 - p; p = e + 1; + first = false; } } |