Strix
26.1K

CVE-2026-68157

Unknown

Last modified

CVE-2026-68157 is a vulnerability of currently unknown severity. 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 ].

Description

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 ]

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 117d96a04f007ce8fc2e292369056c3bd09f6f63, < c46d82c47afc968d6ee8ef4470fa2dd35b765c21; >= 117d96a04f007ce8fc2e292369056c3bd09f6f63, < 3767c9f0c1bbd98dd25cb088356a0fc6c1f09f50; >= 117d96a04f007ce8fc2e292369056c3bd09f6f63, < 4716a64b7cc2797741f7be4e283ace78a9dff37d; >= 117d96a04f007ce8fc2e292369056c3bd09f6f63, < db9cc9fd9660b2d69ee66f5a4cbec83c21a1c64d; >= 117d96a04f007ce8fc2e292369056c3bd09f6f63, < bbeae12fda3384a90fbebc8a19ba9d33f85b5361
LinuxLinux5.8

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68157?
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 ]
How severe is CVE-2026-68157?
Severity scoring for CVE-2026-68157 is pending analysis.
How do I fix CVE-2026-68157?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-68157?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST