CVE-2026-89498
kernel: orangefs: fix double-free of trailer_buf on readdir copy failure
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 11, 2026
Updated · September 29, 2026
Description
A flaw was found in OrangeFS within the Linux kernel. A local client, by sending a specially crafted readdir downcall with a declared trailer_size exceeding the actual supplied bytes, can trigger a double-free vulnerability. This memory corruption issue can lead to a system crash, resulting in a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-763 · Release of Invalid Pointer or Reference