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CVE-2026-93210

Unknown

Last modified

CVE-2026-93210 is a vulnerability of currently unknown severity. 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..

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a48328afbc3f63e3b9de8827e2e16c15b17976f7; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6cb7f9fed8f40f28fbd464ca99c946951afc0952; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 66dbcdbb0cadffd12eb8f2b115fd57d384c5109d; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 846f0709559b9e27024e126a80bc7afb76516912; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 7e32da6047d9afdae8dd17b87b4c8d97363c4ee2; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < bf86c08123c6ab8c61cc0be1dad7540db93738ff; < 6.1.188; < 6.6.157; < 6.12.109; < 6.18.50; < 7.2.4
LinuxLinuxAll versions

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93210?
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.
How severe is CVE-2026-93210?
Severity scoring for CVE-2026-93210 is pending analysis.
How do I fix CVE-2026-93210?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST