{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-49424", "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "state": "PUBLISHED", "assignerShortName": "freebsd", "dateReserved": "2026-05-29T20:24:28.616Z", "datePublished": "2026-08-19T07:08:35.691Z", "dateUpdated": "2026-08-19T07:08:35.691Z"}, "containers": {"cna": {"datePublic": "2026-06-30T20:00:00.000Z", "title": "Kernel stack disclosure in Linux compatibility layer", "references": [{"tags": ["vendor-advisory"], "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:47.linux.asc"}], "affected": [{"defaultStatus": "unknown", "modules": ["linux"], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [{"status": "affected", "versionType": "release", "version": "15.0-RELEASE", "lessThan": "p11"}, {"status": "affected", "versionType": "release", "version": "14.4-RELEASE", "lessThan": "p7"}, {"status": "affected", "versionType": "release", "version": "14.3-RELEASE", "lessThan": "p16"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Adam Crosser, Praetorian"}], "descriptions": [{"lang": "en", "value": "The Linux waitid() implementation translates a FreeBSD siginfo_t struct into a stack-declared Linux siginfo_t. It did not first zero the stack struct.\n\nAn unprivileged user may observe 104 bytes of uninitialized kernel stack data, which may contain sensitive information."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-908", "description": "CWE-908: Use of Uninitialized Resource", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "63664ac6-956c-4cba-a5d0-f46076e16109", "shortName": "freebsd", "dateUpdated": "2026-08-19T07:08:35.691Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unknown", "modules": ["linux"], "product": "FreeBSD", "vendor": "FreeBSD", "versions": [{"lessThan": "p11", "status": "affected", "version": "15.0-RELEASE", "versionType": "release"}, {"lessThan": "p7", "status": "affected", "version": "14.4-RELEASE", "versionType": "release"}, {"lessThan": "p16", "status": "affected", "version": "14.3-RELEASE", "versionType": "release"}]}], "source": "secteam@freebsd.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Linux waitid() implementation translates a FreeBSD siginfo_t struct into a stack-declared Linux siginfo_t. It did not first zero the stack struct.\n\nAn unprivileged user may observe 104 bytes of uninitialized kernel stack data, which may contain sensitive information."}], "id": "CVE-2026-49424", "lastModified": "2026-08-19T08:17:12.060", "metrics": {}, "published": "2026-08-19T08:17:12.060", "references": [{"source": "secteam@freebsd.org", "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:47.linux.asc"}], "sourceIdentifier": "secteam@freebsd.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-908"}], "source": "secteam@freebsd.org", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[15.0-RELEASE,p11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[14.4-RELEASE,p7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[14.3-RELEASE,p16)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "FreeBSD", "source": "cna", "vendor": "FreeBSD"}, "product": "freebsd", "vendor": "freebsd"}], "created": "2026-08-19T11:00:04.164486+00:00", "updated": "2026-08-19T11:00:04.164517+00:00", "vendors": ["freebsd", "freebsd$PRODUCT$freebsd"]}