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Vulnerability record · CVE-2026-52962 · published 24 June 2026

CVE-2026-52962: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.6% CWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
14 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/3fa13ceefbc5f36131110342743994cb3de80637 Patch
https://git.kernel.org/stable/c/4bfdcefdaa6092a06cacd59389c7756b36e6de8c Patch
https://git.kernel.org/stable/c/521e5aba857fd267624892c8dd6295f22ce0267e Patch
https://git.kernel.org/stable/c/5d3cc36b4e77a27ce7b686b7c59c7072bcb3fa8e Patch
https://git.kernel.org/stable/c/7d3e8d2d648d5f0df29b4710246680f47695fe94 Patch
https://git.kernel.org/stable/c/bc7abce4460e490dcb579eec770f175b150b685f Patch
https://git.kernel.org/stable/c/d0cb994605c84a159c1d00d72cdc8583c321ef95 Patch
https://git.kernel.org/stable/c/ecf94823c5c6a20790bb76ed2816822b0beb0c22 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-52962), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.