{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89498", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.714Z", "datePublished": "2026-09-11T19:43:48.096Z", "dateUpdated": "2026-09-11T19:43:48.096Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-11T19:43:48.096Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\norangefs: fix double-free of trailer_buf on readdir copy failure\n\nOn a readdir downcall, orangefs_devreq_write_iter() frees\nop->downcall.trailer_buf with vfree() when copy_from_iter_full() fails,\nbut does not clear the pointer before goto Efault. The waiter in\ndo_readdir() is then woken with a negative status and frees the same\npointer again on its r < 0 path, causing a deterministic double-free.\nA client holding /dev/pvfs2-req triggers it by sending a readdir\ndowncall whose declared trailer_size exceeds the bytes it supplies.\n\nClear the pointer after freeing so the readdir-side vfree() becomes a\nno-op."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/orangefs/devorangefs-req.c"], "versions": [{"version": "382f4581e67f57209c7aa67e39f26ba076306a2e", "lessThan": "2f5454a25127854c232fde5d1d65d16fbcd42d43", "status": "affected", "versionType": "git"}, {"version": "382f4581e67f57209c7aa67e39f26ba076306a2e", "lessThan": "f796f38a324e89547738f4b70cc33be5be2bc6da", "status": "affected", "versionType": "git"}, {"version": "382f4581e67f57209c7aa67e39f26ba076306a2e", "lessThan": "519f4146b8b8c5f20c2ad01913acd6df2df8fc8e", "status": "affected", "versionType": "git"}, {"version": "382f4581e67f57209c7aa67e39f26ba076306a2e", "lessThan": "f574296be7f46eb60beca851240b526df232f480", "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/orangefs/devorangefs-req.c"], "versions": [{"version": "4.12", "status": "affected"}, {"version": "0", "lessThan": "4.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "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": "4.12", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2f5454a25127854c232fde5d1d65d16fbcd42d43"}, {"url": "https://git.kernel.org/stable/c/f796f38a324e89547738f4b70cc33be5be2bc6da"}, {"url": "https://git.kernel.org/stable/c/519f4146b8b8c5f20c2ad01913acd6df2df8fc8e"}, {"url": "https://git.kernel.org/stable/c/f574296be7f46eb60beca851240b526df232f480"}], "title": "orangefs: fix double-free of trailer_buf on readdir copy failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/orangefs/devorangefs-req.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2f5454a25127854c232fde5d1d65d16fbcd42d43", "status": "affected", "version": "382f4581e67f57209c7aa67e39f26ba076306a2e", "versionType": "git"}, {"lessThan": "f796f38a324e89547738f4b70cc33be5be2bc6da", "status": "affected", "version": "382f4581e67f57209c7aa67e39f26ba076306a2e", "versionType": "git"}, {"lessThan": "519f4146b8b8c5f20c2ad01913acd6df2df8fc8e", "status": "affected", "version": "382f4581e67f57209c7aa67e39f26ba076306a2e", "versionType": "git"}, {"lessThan": "f574296be7f46eb60beca851240b526df232f480", "status": "affected", "version": "382f4581e67f57209c7aa67e39f26ba076306a2e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/orangefs/devorangefs-req.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.12"}, {"lessThan": "4.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "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\norangefs: fix double-free of trailer_buf on readdir copy failure\n\nOn a readdir downcall, orangefs_devreq_write_iter() frees\nop->downcall.trailer_buf with vfree() when copy_from_iter_full() fails,\nbut does not clear the pointer before goto Efault. The waiter in\ndo_readdir() is then woken with a negative status and frees the same\npointer again on its r < 0 path, causing a deterministic double-free.\nA client holding /dev/pvfs2-req triggers it by sending a readdir\ndowncall whose declared trailer_size exceeds the bytes it supplies.\n\nClear the pointer after freeing so the readdir-side vfree() becomes a\nno-op."}], "id": "CVE-2026-89498", "lastModified": "2026-09-11T20:19:31.940", "metrics": {}, "published": "2026-09-11T20:19:31.940", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2f5454a25127854c232fde5d1d65d16fbcd42d43"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/519f4146b8b8c5f20c2ad01913acd6df2df8fc8e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f574296be7f46eb60beca851240b526df232f480"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f796f38a324e89547738f4b70cc33be5be2bc6da"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: OrangeFS: Double-free vulnerability in Linux kernel via malformed readdir downcall", "id": "2532343", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532343"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-763", "details": ["A flaw was found in OrangeFS within the Linux kernel. A local client, by sending a specially crafted readdir downcall with a declared trailer_size exceeding the actual supplied bytes, can trigger a double-free vulnerability. This memory corruption issue can lead to a system crash, resulting in a denial of service."], "name": "CVE-2026-89498", "public_date": "2026-09-11T19:43:48Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89498\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89498\nhttps://git.kernel.org/stable/c/2f5454a25127854c232fde5d1d65d16fbcd42d43\nhttps://git.kernel.org/stable/c/519f4146b8b8c5f20c2ad01913acd6df2df8fc8e\nhttps://git.kernel.org/stable/c/f574296be7f46eb60beca851240b526df232f480\nhttps://git.kernel.org/stable/c/f796f38a324e89547738f4b70cc33be5be2bc6da"], "threat_severity": "Moderate"}

{"created": "2026-09-12T03:45:07.951739+00:00", "updated": "2026-09-12T03:45:07.951750+00:00", "vendors": []}