CVE-2025-68817 — Use After Free in Linux
Severity
7.8HIGHNVD
EPSS
0.0%
top 99.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 13
Latest updateApr 17
Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency
Under high concurrency, A tree-connection object (tcon) is freed on
a disconnect path while another path still holds a reference and later
executes *_put()/write on it.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages19 packages
▶CVEListV5linux/linuxdd45db4d9bbc8f122a9b4db5ce94ae29fcf03d3c — 446beed646b2e426dd53d27358365f8678e1dd01+6
Patches
🔴Vulnerability Details
2OSV▶
CVE-2025-68817: In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency Under high c↗2026-01-13
GHSA▶
GHSA-77h3-779x-v4x3: In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency
Under high↗2026-01-13