CVE-2025-68817

HIGH EPSS 5.5%
Published Jan 13, 20265mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Jan 13, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
5.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥5.15.145  –  <5.15.199
linuxlinux_kernel*≥6.1.71  –  <6.1.160
linuxlinux_kernel*≥6.6.1  –  <6.6.120
linuxlinux_kernel*≥6.7  –  <6.12.64
linuxlinux_kernel*≥6.13  –  <6.18.3
linuxlinux_kernel6.6any
linuxlinux_kernel6.6any
linuxlinux_kernel6.6any
linuxlinux_kernel6.6any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/063cbbc6f595ea36ad146e1b7d2af820894beb21
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/21a3d01fc6db5129f81edb0ab7cb94fd758bcbea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/446beed646b2e426dd53d27358365f8678e1dd01
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b39a1833cc4a2755b02603eec3a71a85e9dff926
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d092de8a26c952379ded8e6b0bda31d89befac1a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d64977495e44855f2b28d8ce56107c963a7a50e4
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/063cbbc6f595ea36ad146e1b7d2af820894beb21
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/21a3d01fc6db5129f81edb0ab7cb94fd758bcbea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/446beed646b2e426dd53d27358365f8678e1dd01
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b39a1833cc4a2755b02603eec3a71a85e9dff926
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d092de8a26c952379ded8e6b0bda31d89befac1a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d64977495e44855f2b28d8ce56107c963a7a50e4
    Patch