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GPU (Pci): hardens the parser

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Carter Li
2026-10-13 00:01:24 +08:00
parent b7bc8ca99d
commit fe05a041ef
1 changed files with 18 additions and 14 deletions
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src/detection/gpu/gpu_pci.c
+18 -14
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@@ -99,21 +99,25 @@ static void parsePciIdsFile(const FFstrbuf* content, uint8_t subclass, uint16_t
if (start) {
FF_DEBUG("Found PCI device entry for 0x%04x:0x%04x", vendor, device);
start += len;
end = memchr(start, '\n', (uint32_t) (end - start));
if (!end) {
end = content->chars + content->length;
}
char* closingBracket = end - 1;
if (*closingBracket == ']') {
char* openingBracket = memrchr(start, '[', (size_t) (closingBracket - start));
if (openingBracket) {
openingBracket++;
ffStrbufSetNS(&gpu->name, (uint32_t) (closingBracket - openingBracket), openingBracket);
if (start < end) {
end = memchr(start, '\n', (uint32_t) (end - start));
if (!end) {
end = content->chars + content->length;
}
}
if (!gpu->name.length) {
ffStrbufSetNS(&gpu->name, (uint32_t) (end - start), start);
char* closingBracket = end - 1;
if (*closingBracket == ']') {
char* openingBracket = memrchr(start, '[', (size_t) (closingBracket - start));
if (openingBracket) {
openingBracket++;
ffStrbufSetNS(&gpu->name, (uint32_t) (closingBracket - openingBracket), openingBracket);
}
}
if (!gpu->name.length) {
ffStrbufSetNS(&gpu->name, (uint32_t) (end - start), start);
}
} else {
FF_DEBUG("PCI device entry for 0x%04x:0x%04x is incomplete", vendor, device);
}
} else {
FF_DEBUG("PCI device entry 0x%04x:0x%04x was not found in pci.ids", vendor, device);