{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45948", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.088Z", "datePublished": "2026-05-27T12:18:04.937Z", "dateUpdated": "2026-05-27T12:18:04.937Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:18:04.937Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix memory leak in ext4_ext_shift_extents()\n\nIn ext4_ext_shift_extents(), if the extent is NULL in the while loop, the\nfunction returns immediately without releasing the path obtained via\next4_find_extent(), leading to a memory leak.\n\nFix this by jumping to the out label to ensure the path is properly\nreleased."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ext4/extents.c"], "versions": [{"version": "a18ed359bdddcded4f97ff5e2f07793ff9336913", "lessThan": "7e807cb8603b7664fa630a696cd891d9a03c248d", "status": "affected", "versionType": "git"}, {"version": "a18ed359bdddcded4f97ff5e2f07793ff9336913", "lessThan": "afc5e61e1a07b2b833bd72cbee36ecce9cd901e2", "status": "affected", "versionType": "git"}, {"version": "a18ed359bdddcded4f97ff5e2f07793ff9336913", "lessThan": "1bce219ee5512cf179ba40cf114945a14a16e21f", "status": "affected", "versionType": "git"}, {"version": "a18ed359bdddcded4f97ff5e2f07793ff9336913", "lessThan": "4a79fde8db7eba7f1128d971ceba4e3c9ac84aec", "status": "affected", "versionType": "git"}, {"version": "a18ed359bdddcded4f97ff5e2f07793ff9336913", "lessThan": "2f4b1052246ca646bb17bfe0f53df2fdf9729b58", "status": "affected", "versionType": "git"}, {"version": "a18ed359bdddcded4f97ff5e2f07793ff9336913", "lessThan": "12615ab4bfb69678e5d961b28bb70040299e51b1", "status": "affected", "versionType": "git"}, {"version": "a18ed359bdddcded4f97ff5e2f07793ff9336913", "lessThan": "bd7b52557e4a3ccd7595fdb3a585f1257de57935", "status": "affected", "versionType": "git"}, {"version": "a18ed359bdddcded4f97ff5e2f07793ff9336913", "lessThan": "ca81109d4a8f192dc1cbad4a1ee25246363c2833", "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/ext4/extents.c"], "versions": [{"version": "3.15", "status": "affected"}, {"version": "0", "lessThan": "3.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.252", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "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": "3.15", "versionEndExcluding": "5.10.252"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248d"}, {"url": "https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2"}, {"url": "https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21f"}, {"url": "https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aec"}, {"url": "https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58"}, {"url": "https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1"}, {"url": "https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935"}, {"url": "https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833"}], "title": "ext4: fix memory leak in ext4_ext_shift_extents()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix memory leak in ext4_ext_shift_extents()\n\nIn ext4_ext_shift_extents(), if the extent is NULL in the while loop, the\nfunction returns immediately without releasing the path obtained via\next4_find_extent(), leading to a memory leak.\n\nFix this by jumping to the out label to ensure the path is properly\nreleased."}], "id": "CVE-2026-45948", "lastModified": "2026-05-27T14:48:03.013", "metrics": {}, "published": "2026-05-27T14:17:11.157", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aec"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: ext4: fix memory leak in ext4_ext_shift_extents()", "id": "2481964", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481964"}, "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 ext4 filesystem. This vulnerability occurs in the `ext4_ext_shift_extents()` function, where a memory leak can happen if the function returns prematurely without releasing a previously obtained path. A local attacker could potentially exploit this to cause a denial of service due to resource exhaustion."], "name": "CVE-2026-45948", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45948\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45948\nhttps://lore.kernel.org/linux-cve-announce/2026052731-CVE-2026-45948-ea2b@gregkh/T"], "threat_severity": "Low"}