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Packages (Linux): hardens getdents64 usage

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Carter Li
2026-10-10 15:42:41 +08:00
parent de414b7250
commit 10379d600d
1 changed files with 5 additions and 0 deletions
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src/detection/packages/packages.c
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@@ -108,6 +108,11 @@ uint32_t ffPackagesGetNumElements(const char* dirname, bool isdir) {
struct linux_dirent64* entry = (struct linux_dirent64*) bytes;
while (remaining >= nameOffset + 1) {
if (entry->d_reclen < nameOffset + 1 || entry->d_reclen > remaining) {
remaining = 0;
break;
}
bool ok = false;
if (entry->d_name[0] != '.') {
if (__builtin_expect(entry->d_type != DT_UNKNOWN && entry->d_type != DT_LNK, true)) {