CVE-2026-93210

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.

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EPSS — Exploit Prediction

0.0017

Probability of exploitation

0.06%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952 https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2 https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912 https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7 https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff

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 do I check if I'm vulnerable to CVE-2026-93210? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.