{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43419", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.008Z", "datePublished": "2026-05-08T14:21:55.037Z", "dateUpdated": "2026-05-08T14:21:55.037Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-08T14:21:55.037Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix memory leaks in ceph_mdsc_build_path()\n\nAdd __putname() calls to error code paths that did not free the \"path\"\npointer obtained by __getname(). If ownership of this pointer is not\npassed to the caller via path_info.path, the function must free it\nbefore returning."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ceph/mds_client.c"], "versions": [{"version": "3fd945a79e147ee10f84213976889b29049c3519", "lessThan": "657dc653b06a3cc0282aea447a3f137fa94066a4", "status": "affected", "versionType": "git"}, {"version": "3fd945a79e147ee10f84213976889b29049c3519", "lessThan": "5895d0164c84d7fec6abc198920c257f55c51899", "status": "affected", "versionType": "git"}, {"version": "3fd945a79e147ee10f84213976889b29049c3519", "lessThan": "097cd68f46686391a98f2618188f0cb7b7570de2", "status": "affected", "versionType": "git"}, {"version": "3fd945a79e147ee10f84213976889b29049c3519", "lessThan": "13b8b9d6f59ef17fb96c298c3a0d62a8306950cc", "status": "affected", "versionType": "git"}, {"version": "3fd945a79e147ee10f84213976889b29049c3519", "lessThan": "040d159a45ded7f33201421a81df0aa2a86e5a0b", "status": "affected", "versionType": "git"}, {"version": "0f2b2d9e881c90402dbe28f9ba831775b7992e1f", "status": "affected", "versionType": "git"}, {"version": "d42ad3f161a5a487f81915c406f46943c7187a0a", "status": "affected", "versionType": "git"}, {"version": "e4b168c64da06954be5d520f6c16469b1cadc069", "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/ceph/mds_client.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.130", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.78", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.19", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.9", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.6", "versionEndExcluding": "6.6.130"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.19.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.0"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.234"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.177"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.125"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/657dc653b06a3cc0282aea447a3f137fa94066a4"}, {"url": "https://git.kernel.org/stable/c/5895d0164c84d7fec6abc198920c257f55c51899"}, {"url": "https://git.kernel.org/stable/c/097cd68f46686391a98f2618188f0cb7b7570de2"}, {"url": "https://git.kernel.org/stable/c/13b8b9d6f59ef17fb96c298c3a0d62a8306950cc"}, {"url": "https://git.kernel.org/stable/c/040d159a45ded7f33201421a81df0aa2a86e5a0b"}], "title": "ceph: fix memory leaks in ceph_mdsc_build_path()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix memory leaks in ceph_mdsc_build_path()\n\nAdd __putname() calls to error code paths that did not free the \"path\"\npointer obtained by __getname(). If ownership of this pointer is not\npassed to the caller via path_info.path, the function must free it\nbefore returning."}], "id": "CVE-2026-43419", "lastModified": "2026-05-08T15:16:53.910", "metrics": {}, "published": "2026-05-08T15:16:53.910", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/040d159a45ded7f33201421a81df0aa2a86e5a0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/097cd68f46686391a98f2618188f0cb7b7570de2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/13b8b9d6f59ef17fb96c298c3a0d62a8306950cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5895d0164c84d7fec6abc198920c257f55c51899"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/657dc653b06a3cc0282aea447a3f137fa94066a4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ceph: fix memory leaks in ceph_mdsc_build_path()", "id": "2468144", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468144"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's Ceph file system component. Improper memory deallocation within the `ceph_mdsc_build_path()` function can lead to memory leaks. This occurs when the \"path\" pointer, obtained by `__getname()`, is not properly freed in error handling paths. Over time, these memory leaks could lead to resource exhaustion, potentially resulting in a Denial of Service (DoS) for the system."], "name": "CVE-2026-43419", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43419\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43419\nhttps://lore.kernel.org/linux-cve-announce/2026050846-CVE-2026-43419-1421@gregkh/T"], "threat_severity": "Low"}

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