[Comgr] Use secure_getenv() for environment variable reads on glibc#3069
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lamb-j wants to merge 1 commit into
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[Comgr] Use secure_getenv() for environment variable reads on glibc#3069lamb-j wants to merge 1 commit into
lamb-j wants to merge 1 commit into
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Route all env-var reads in comgr-env.cpp through a __GLIBC__-gated COMGR_GETENV macro (secure_getenv on glibc, plain getenv elsewhere) so env-controlled file paths are ignored under AT_SECURE. Windows/macOS/musl take the getenv fallback, unchanged. Addresses security-triage finding SEC-00183 (ROCM-26567).
chinmaydd
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Jun 25, 2026
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| #if defined(__GLIBC__) | ||
| #define COMGR_GETENV secure_getenv | ||
| #else | ||
| #define COMGR_GETENV getenv | ||
| #endif |
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Windows seems to have an equivalent. Can we add handling for that ?
https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/getenv-s-wgetenv-s?view=msvc-170
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Routes all env-var reads in
comgr-env.cppthrough a__GLIBC__-gatedCOMGR_GETENVmacro (secure_getenvon glibc, plaingetenvelsewhere) so env-controlled file paths (AMD_COMGR_REDIRECT_LOGS,AMD_COMGR_CACHE_DIR,AMD_COMGR_SAVE_TEMPS,AMD_COMGR_TIME_STATISTICS, etc.) are ignored underAT_SECURE(setuid/setgid / file-capability processes).Windows, macOS, and musl have no
AT_SECUREconcept and nosecure_getenv(), so they take thegetenv()fallback — behavior there is unchanged.Addresses security-triage finding SEC-00183 (ROCM-26567). Path validation /
O_NOFOLLOWfrom the scan's remediation were intentionally not added: these env vars are documented features that legitimately take absolute user paths.