PT-2026-8213 · Linux+2 · Linux Kernel+2
Miche
+1
·
Published
2026-01-01
·
Updated
2026-06-16
·
CVE-2026-23205
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A memory leak exists in the smb2 open file() function within the SMB/client component of the Linux kernel. The issue occurs when directories are exported as read-only, and a CIFS mount is used with direct writes. Specifically, the reproducer involves mounting a read-only export, writing to a file, unmounting, and then removing the CIFS module, which can lead to objects remaining on the
kmem cache shutdown() resulting in a memory leak. The error message indicates a problem with the kmem cache destroy function and objects remaining in the cifs small rq slab cache.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Memory Leak
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Weakness Enumeration
Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu