CVE-2026-93210

medium

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: harden DFS cache against invalid target hints Currently, get_tgt_name() returns ERR_PTR(-ENOENT) when ce->tgthint is NULL, and dfs_cache_noreq_update_tgthint() assumes ce->tgthint is always valid. In preparation for clearing ce->tgthint in free_tgts(), harden callers of get_tgt_name() against ERR_PTR results and harden dfs_cache_noreq_update_tgthint() against NULL pointer dereferences.

References

https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff

https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7

https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912

https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2

https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952

https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d

Details

Source: Mitre, NVD

Published: 2026-09-24

Updated: 2026-09-25

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

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

Severity: Medium

EPSS

EPSS: 0.00172