CVE-2026-93210

CVE-2026-93210: vulnerability in Linux

smb: client: harden DFS cache against invalid target hints

Published · Updated

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · Linux
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References
https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109dhttps://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff