CVE-2026-52962: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: from 4.4.192, before 4.5 (fixed in 4.5); from 4.9.192, before 4.10 (fixed in 4.10); from 4.14.143, before 4.15 (fixed in 4.15); from 4.19.72, before 4.20 (fixed in 4.20); from 5.2.14, before 5.3 (fixed in 5.3); from 5.3.1, before 5.10.258 (fixed in 5.10.258); …

Published 2026-06-24. Last modified 2026-07-14.