In the Linux kernel, the following vulnerability has been resolved: [ceph] parse_longname(): strrchr() expects NUL-terminated string ... and parse_longname() is not guaranteed that. That's the reason why it uses kmemdup_nul() to build the argument for kstrtou64(); the problem is, kstrtou64() is not the only thing that need it. Just get a NUL-terminated copy of the entire thing and be done with that...
History

Mon, 25 Aug 2025 12:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate


Sat, 23 Aug 2025 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Fri, 22 Aug 2025 16:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: [ceph] parse_longname(): strrchr() expects NUL-terminated string ... and parse_longname() is not guaranteed that. That's the reason why it uses kmemdup_nul() to build the argument for kstrtou64(); the problem is, kstrtou64() is not the only thing that need it. Just get a NUL-terminated copy of the entire thing and be done with that...
Title [ceph] parse_longname(): strrchr() expects NUL-terminated string
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-08-22T16:01:03.686Z

Updated: 2025-08-22T16:01:03.686Z

Reserved: 2025-04-16T04:51:24.031Z

Link: CVE-2025-38660

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-22T16:15:41.193

Modified: 2025-08-22T18:08:51.663

Link: CVE-2025-38660

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-08-22T00:00:00Z

Links: CVE-2025-38660 - Bugzilla