{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98117", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.317Z", "datePublished": "2026-09-25T10:36:02.319Z", "dateUpdated": "2026-09-25T10:36:02.319Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-25T10:36:02.319Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: Fix potential UAF/KASAN warning\n\nCurrently, trace_cachefiles_coherency() is being passed a pointer to a\n__be64 lain over the coherency data in struct cachefiles_xattr so that it\ncan display the first 8 bytes. However, the data is of variable length and\ncould even be 0 bytes. This could lead to a UAF or KASAN warning.\n\nFix this by making sure the buffer has room for at least 8 bytes and that\nthose 8 bytes are pre-cleared.\n\nFurther, those bytes are not 8-byte aligned, so fix the tracepoint to\nextract the data as four 2-byte words (they are 2-byte aligned) and\nreassemble the __be64. The compiler will convert this into a single 8-byte\nload where the CPU supports it."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/cachefiles/xattr.c", "include/trace/events/cachefiles.h"], "versions": [{"version": "229105e5cfd9832a9ef1368c96e0098ec3a5fbf0", "lessThan": "68d459e6e609c31f96a203dd6eec60c634f155e1", "status": "affected", "versionType": "git"}, {"version": "229105e5cfd9832a9ef1368c96e0098ec3a5fbf0", "lessThan": "93488ea378b4427598cace558236c110515d743b", "status": "affected", "versionType": "git"}, {"version": "229105e5cfd9832a9ef1368c96e0098ec3a5fbf0", "lessThan": "a67632c8c2688d6e0091529bcefe54bc5ee80e9b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/cachefiles/xattr.c", "include/trace/events/cachefiles.h"], "versions": [{"version": "6.14", "status": "affected"}, {"version": "0", "lessThan": "6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14", "versionEndExcluding": "7.3-rc3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/68d459e6e609c31f96a203dd6eec60c634f155e1"}, {"url": "https://git.kernel.org/stable/c/93488ea378b4427598cace558236c110515d743b"}, {"url": "https://git.kernel.org/stable/c/a67632c8c2688d6e0091529bcefe54bc5ee80e9b"}], "title": "cachefiles: Fix potential UAF/KASAN warning", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/cachefiles/xattr.c", "include/trace/events/cachefiles.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "68d459e6e609c31f96a203dd6eec60c634f155e1", "status": "affected", "version": "229105e5cfd9832a9ef1368c96e0098ec3a5fbf0", "versionType": "git"}, {"lessThan": "93488ea378b4427598cace558236c110515d743b", "status": "affected", "version": "229105e5cfd9832a9ef1368c96e0098ec3a5fbf0", "versionType": "git"}, {"lessThan": "a67632c8c2688d6e0091529bcefe54bc5ee80e9b", "status": "affected", "version": "229105e5cfd9832a9ef1368c96e0098ec3a5fbf0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/cachefiles/xattr.c", "include/trace/events/cachefiles.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.14"}, {"lessThan": "6.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: Fix potential UAF/KASAN warning\n\nCurrently, trace_cachefiles_coherency() is being passed a pointer to a\n__be64 lain over the coherency data in struct cachefiles_xattr so that it\ncan display the first 8 bytes. However, the data is of variable length and\ncould even be 0 bytes. This could lead to a UAF or KASAN warning.\n\nFix this by making sure the buffer has room for at least 8 bytes and that\nthose 8 bytes are pre-cleared.\n\nFurther, those bytes are not 8-byte aligned, so fix the tracepoint to\nextract the data as four 2-byte words (they are 2-byte aligned) and\nreassemble the __be64. The compiler will convert this into a single 8-byte\nload where the CPU supports it."}], "id": "CVE-2026-98117", "lastModified": "2026-09-25T11:17:42.920", "metrics": {}, "published": "2026-09-25T11:17:42.920", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/68d459e6e609c31f96a203dd6eec60c634f155e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/93488ea378b4427598cace558236c110515d743b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a67632c8c2688d6e0091529bcefe54bc5ee80e9b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[229105e5cfd9832a9ef1368c96e0098ec3a5fbf0,68d459e6e609c31f96a203dd6eec60c634f155e1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[229105e5cfd9832a9ef1368c96e0098ec3a5fbf0,93488ea378b4427598cace558236c110515d743b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[229105e5cfd9832a9ef1368c96e0098ec3a5fbf0,a67632c8c2688d6e0091529bcefe54bc5ee80e9b)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-25T12:30:08.113467+00:00", "updated": "2026-09-25T12:30:08.113503+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}