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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < a48328afbc3f63e3b9de8827e2e16c15b17976f7
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 6cb7f9fed8f40f28fbd464ca99c946951afc0952
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 66dbcdbb0cadffd12eb8f2b115fd57d384c5109d
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 846f0709559b9e27024e126a80bc7afb76516912
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 7e32da6047d9afdae8dd17b87b4c8d97363c4ee2
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < bf86c08123c6ab8c61cc0be1dad7540db93738ff
0 affected < 6.1.188
0 affected < 6.6.157
0 affected < 6.12.109
0 affected < 6.18.50
0 affected < 7.2.4
Linux Linux affected
Version Status Constraints
6.1.188 unaffected ≤ 6.1.*
6.6.157 unaffected ≤ 6.6.*
6.12.109 unaffected ≤ 6.12.*
6.18.50 unaffected ≤ 6.18.*
7.2.4 unaffected ≤ 7.2.*
7.3-rc1 unaffected ≤ *

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d cve-icon cve-icon
https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952 cve-icon cve-icon
https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2 cve-icon cve-icon
https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912 cve-icon cve-icon
https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7 cve-icon cve-icon
https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff cve-icon cve-icon
History

Thu, 24 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title smb: client: harden DFS cache against invalid target hints
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-24T15:10:33.577Z

Reserved: 2026-09-17T16:02:15.093Z

Link: CVE-2026-93210

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-24T16:17:15.877

Modified: 2026-09-24T16:17:15.877

Link: CVE-2026-93210

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.