CVE-2026-93210smb: client: harden DFS cache against invalid target hints
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 54be1f6c1c37498bba557049df646cc239fa37e3 before a48328afbc3f63e3b9de8827e2e16c15b17976f7; 54be1f6c1c37498bba557049df646cc239fa37e3 builds before 6cb7f9fed8f40f28fbd464ca99c946951afc0952; from 54be1f6c1c37498bba557049df646cc239fa37e3 before 66dbcdbb0cadffd12eb8f2b115fd57d384c5109d; from 54be1f6c1c37498bba557049df646cc239fa37e3 before 846f0709559b9e27024e126a80bc7afb76516912; 54be1f6c1c37498bba557049df646cc239fa37e3 builds before 7e32da6047d9afdae8dd17b87b4c8d97363c4ee2; from 54be1f6c1c37498bba557049df646cc239fa37e3 before bf86c08123c6ab8c61cc0be1dad7540db93738ff | CNA record |
References
- https://git.kernel.org/stable/c/a48328afbc3f63e3b9de8827e2e16c15b17976f7
- https://git.kernel.org/stable/c/6cb7f9fed8f40f28fbd464ca99c946951afc0952
- https://git.kernel.org/stable/c/66dbcdbb0cadffd12eb8f2b115fd57d384c5109d
- https://git.kernel.org/stable/c/846f0709559b9e27024e126a80bc7afb76516912
- https://git.kernel.org/stable/c/7e32da6047d9afdae8dd17b87b4c8d97363c4ee2
- https://git.kernel.org/stable/c/bf86c08123c6ab8c61cc0be1dad7540db93738ff
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.