CVE-2026-93210
smb: client: harden DFS cache against invalid target hints
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 24, 2026 |
| Last Updated | Oct 19, 2026 |
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Affected Versions
Linux / Linux
54be1f6c1c37498bba557049df646cc239fa37e3 < a48328afbc3f63e3b9de8827e2e16c15b17976f7 54be1f6c1c37498bba557049df646cc239fa37e3 < 6cb7f9fed8f40f28fbd464ca99c946951afc0952 54be1f6c1c37498bba557049df646cc239fa37e3 < 66dbcdbb0cadffd12eb8f2b115fd57d384c5109d 54be1f6c1c37498bba557049df646cc239fa37e3 < 846f0709559b9e27024e126a80bc7afb76516912 54be1f6c1c37498bba557049df646cc239fa37e3 < 7e32da6047d9afdae8dd17b87b4c8d97363c4ee2 54be1f6c1c37498bba557049df646cc239fa37e3 < bf86c08123c6ab8c61cc0be1dad7540db93738ff
Linux / Linux
5.0
References
git.kernel.org: https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7 git.kernel.org: https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952 git.kernel.org: https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d git.kernel.org: https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912 git.kernel.org: https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2 git.kernel.org: https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff