CVE-2026-52962
Received Received - Intake
Buffer Leak in Linux Kernel Ceph Filesystem

Publication date: 2026-06-24

Last updated on: 2026-06-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ceph: fix a buffer leak in __ceph_setxattr() The old_blob in __ceph_setxattr() can store ci->i_xattrs.prealloc_blob value during the retry. However, it is never called the ceph_buffer_put() for the old_blob object. This patch fixes the issue of the buffer leak.
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Meta Information
Published
2026-06-24
Last Modified
2026-06-24
Generated
2026-06-25
AI Q&A
2026-06-24
EPSS Evaluated
N/A
NVD
CVE-2026-52962
EUVD
EUVD-2026-38830
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
ceph ceph *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a buffer leak in the Linux kernel's Ceph component, specifically in the function __ceph_setxattr(). The issue occurs because the old_blob object, which can store the ci->i_xattrs.prealloc_blob value during a retry, is not properly released using ceph_buffer_put(). This results in a buffer leak.

Impact Analysis

The vulnerability causes a buffer leak in the Ceph component of the Linux kernel. Buffer leaks can lead to increased memory usage over time, potentially causing system instability or degraded performance if the leaked buffers accumulate.

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