CVE-2026-68157

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-68157

Key Details

CVE	CVE-2026-68157
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

libceph: guard missing CRUSH type name lookup

Localized read selection can walk a parent bucket whose name exists in

the CRUSH map while its type has no matching entry in type_names.

get_immediate_parent() then dereferences a NULL type_cn and passes an

invalid pointer into strcmp(), causing a null-ptr-deref.

Skip such malformed parent buckets unless both the bucket name and type

name metadata are present. This keeps malformed hierarchy data from

crashing locality lookup and safely falls back to "not local".

[ idryomov: add WARN_ON_ONCE ] (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-68157
CVE	https://www.cve.org/CVERecord?id=CVE-2026-68157

Source

Reference

NVD

CVE