CVE-2025-68817
CRITICAL severity · CVSS 9.8 · Use-after-free
9.8CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/063cbbc6f595ea36ad146e1b7d2af820894beb21 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/063cbbc6f595ea36ad146e1b7d2af820894beb21Patch
- https://git.kernel.org/stable/c/21a3d01fc6db5129f81edb0ab7cb94fd758bcbeaPatch
- https://git.kernel.org/stable/c/446beed646b2e426dd53d27358365f8678e1dd01Patch
- https://git.kernel.org/stable/c/b39a1833cc4a2755b02603eec3a71a85e9dff926Patch
- https://git.kernel.org/stable/c/d092de8a26c952379ded8e6b0bda31d89befac1aPatch
- https://git.kernel.org/stable/c/d64977495e44855f2b28d8ce56107c963a7a50e4Patch