CVE-2023-1859

kernel: Use after free in xen_9pfs_front_remove due to race condition

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Severity

Low

Red Hat Product Security

4.1

CVSS 3.1

Review impact separately from score.

Published · April 4, 2023

Updated · November 21, 2025

Description

A use-after-free flaw was found in xen_9pfs_front_removet in net/9p/trans_xen.c in Xen transport for 9pfs in the Linux Kernel. This flaw could allow a local attacker to crash the system due to a race problem, possibly leading to a kernel information leak.

Statement

There was no shipped kernel version were seen affected with this problem. These files are not built in our source code.

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 · 4.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-416 · Use After Free