{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-52962", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.374Z", "datePublished": "2026-06-24T16:28:42.688Z", "dateUpdated": "2026-06-29T04:18:48.908Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-29T04:18:48.908Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nceph: fix a buffer leak in __ceph_setxattr()\n\nThe old_blob in __ceph_setxattr() can store\nci->i_xattrs.prealloc_blob value during the retry.\nHowever, it is never called the ceph_buffer_put()\nfor the old_blob object. This patch fixes the issue of\nthe buffer leak."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/ceph/xattr.c"], "versions": [{"version": "86968ef21596515958d5f0a40233d02be78ecec0", "lessThan": "521e5aba857fd267624892c8dd6295f22ce0267e", "status": "affected", "versionType": "git"}, {"version": "86968ef21596515958d5f0a40233d02be78ecec0", "lessThan": "d0cb994605c84a159c1d00d72cdc8583c321ef95", "status": "affected", "versionType": "git"}, {"version": "86968ef21596515958d5f0a40233d02be78ecec0", "lessThan": "ecf94823c5c6a20790bb76ed2816822b0beb0c22", "status": "affected", "versionType": "git"}, {"version": "86968ef21596515958d5f0a40233d02be78ecec0", "lessThan": "4bfdcefdaa6092a06cacd59389c7756b36e6de8c", "status": "affected", "versionType": "git"}, {"version": "86968ef21596515958d5f0a40233d02be78ecec0", "lessThan": 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{"bugzilla": {"description": "kernel: ceph: fix a buffer leak in __ceph_setxattr()", "id": "2492394", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492394"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nceph: fix a buffer leak in __ceph_setxattr()\nThe old_blob in __ceph_setxattr() can store\nci->i_xattrs.prealloc_blob value during the retry.\nHowever, it is never called the ceph_buffer_put()\nfor the old_blob object. This patch fixes the issue of\nthe buffer leak.", "A flaw was found in the Linux kernel, specifically within the Ceph file system's extended attribute handling. A buffer leak occurs in the `__ceph_setxattr()` function because a previously allocated buffer (`old_blob`) is not properly released. This can lead to resource exhaustion over time, potentially causing a denial of service (DoS) for affected systems."], "name": "CVE-2026-52962", "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": "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": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-52962\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-52962\nhttps://lore.kernel.org/linux-cve-announce/2026062437-CVE-2026-52962-69b4@gregkh/T"], "threat_severity": "Low"}