{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49366", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.555Z", "datePublished": "2025-02-26T02:11:11.250Z", "dateUpdated": "2025-02-26T02:11:11.250Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-02-26T02:11:11.250Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix reference count leak in smb_check_perm_dacl()\n\nThe issue happens in a specific path in smb_check_perm_dacl(). When\n\"id\" and \"uid\" have the same value, the function simply jumps out of\nthe loop without decrementing the reference count of the object\n\"posix_acls\", which is increased by get_acl() earlier. This may\nresult in memory leaks.\n\nFix it by decreasing the reference count of \"posix_acls\" before\njumping to label \"check_access_bits\"."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ksmbd/smbacl.c"], "versions": [{"version": "777cad1604d68ed4379ec899d1f7d2f6a29f01f0", "lessThan": "cf824b95c12a1abacadbc2d069931963221a3414", "status": "affected", "versionType": "git"}, {"version": "777cad1604d68ed4379ec899d1f7d2f6a29f01f0", "lessThan": "248d71b440aef829f5cc5f6545ca113ef5062900", "status": "affected", "versionType": "git"}, {"version": "777cad1604d68ed4379ec899d1f7d2f6a29f01f0", "lessThan": "9758a6653c27867d810de02b4e5697163dda9883", "status": "affected", "versionType": "git"}, {"version": "777cad1604d68ed4379ec899d1f7d2f6a29f01f0", "lessThan": "d21a580dafc69aa04f46e6099616146a536b0724", "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/ksmbd/smbacl.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.47", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.15", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.4", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/cf824b95c12a1abacadbc2d069931963221a3414"}, {"url": "https://git.kernel.org/stable/c/248d71b440aef829f5cc5f6545ca113ef5062900"}, {"url": "https://git.kernel.org/stable/c/9758a6653c27867d810de02b4e5697163dda9883"}, {"url": "https://git.kernel.org/stable/c/d21a580dafc69aa04f46e6099616146a536b0724"}], "title": "ksmbd: fix reference count leak in smb_check_perm_dacl()", "x_generator": {"engine": "bippy-5f407fcff5a0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B3166432-278C-4CF4-AE75-4257C99F32BD", "versionEndExcluding": "5.15.47", "versionStartIncluding": "5.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "53E7AA2E-2FB4-45CA-A22B-08B4EDBB51AD", "versionEndExcluding": "5.17.15", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FA6D643C-6D6A-4821-8A8D-B5776B8F0103", "versionEndExcluding": "5.18.4", "versionStartIncluding": "5.18", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix reference count leak in smb_check_perm_dacl()\n\nThe issue happens in a specific path in smb_check_perm_dacl(). When\n\"id\" and \"uid\" have the same value, the function simply jumps out of\nthe loop without decrementing the reference count of the object\n\"posix_acls\", which is increased by get_acl() earlier. This may\nresult in memory leaks.\n\nFix it by decreasing the reference count of \"posix_acls\" before\njumping to label \"check_access_bits\"."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ksmbd: se corrige la p\u00e9rdida de recuento de referencias en smb_check_perm_dacl() El problema ocurre en una ruta espec\u00edfica en smb_check_perm_dacl(). Cuando \"id\" y \"uid\" tienen el mismo valor, la funci\u00f3n simplemente salta del bucle sin disminuir el recuento de referencias del objeto \"posix_acls\", que se incrementa mediante get_acl() anteriormente. Esto puede provocar fugas de memoria. Arr\u00e9glelo disminuyendo el recuento de referencias de \"posix_acls\" antes de saltar a la etiqueta \"check_access_bits\"."}], "id": "CVE-2022-49366", "lastModified": "2025-04-14T20:42:02.230", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:01:13.230", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/248d71b440aef829f5cc5f6545ca113ef5062900"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9758a6653c27867d810de02b4e5697163dda9883"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cf824b95c12a1abacadbc2d069931963221a3414"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d21a580dafc69aa04f46e6099616146a536b0724"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ksmbd: fix reference count leak in smb_check_perm_dacl()", "id": "2347875", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347875"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nksmbd: fix reference count leak in smb_check_perm_dacl()\nThe issue happens in a specific path in smb_check_perm_dacl(). When\n\"id\" and \"uid\" have the same value, the function simply jumps out of\nthe loop without decrementing the reference count of the object\n\"posix_acls\", which is increased by get_acl() earlier. This may\nresult in memory leaks.\nFix it by decreasing the reference count of \"posix_acls\" before\njumping to label \"check_access_bits\"."], "name": "CVE-2022-49366", "package_state": [{"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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49366\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49366\nhttps://lore.kernel.org/linux-cve-announce/2025022645-CVE-2022-49366-d901@gregkh/T"], "threat_severity": "Moderate"}