High 7.8Published Jun 24, 2026

CVE-2026-52962ceph: fix a buffer leak in __ceph_setxattr()

Updated under an hour ago (Oct 28, 2026, 1:50 AM ET)

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Exploited in the last 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.

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Jun 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	86968ef21596515958d5f0a40233d02be78ecec0 builds before 521e5aba857fd267624892c8dd6295f22ce0267e; from 86968ef21596515958d5f0a40233d02be78ecec0 before d0cb994605c84a159c1d00d72cdc8583c321ef95; from 86968ef21596515958d5f0a40233d02be78ecec0 before ecf94823c5c6a20790bb76ed2816822b0beb0c22; 86968ef21596515958d5f0a40233d02be78ecec0 builds before 4bfdcefdaa6092a06cacd59389c7756b36e6de8c; 86968ef21596515958d5f0a40233d02be78ecec0 builds before 7d3e8d2d648d5f0df29b4710246680f47695fe94; 86968ef21596515958d5f0a40233d02be78ecec0 builds before 3fa13ceefbc5f36131110342743994cb3de80637; from 86968ef21596515958d5f0a40233d02be78ecec0 before bc7abce4460e490dcb579eec770f175b150b685f; 86968ef21596515958d5f0a40233d02be78ecec0 builds before 5d3cc36b4e77a27ce7b686b7c59c7072bcb3fa8e; and 10 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 4.4.192 before 4.5; from 4.9.192 before 4.10; from 4.14.143 before 4.15; from 4.19.72 before 4.20; from 5.2.14 before 5.3; from 5.3.1 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; and 11 more ranges	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.