CVE-2025-21967

HIGH EPSS 6.4%
Published Apr 1, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Apr 1, 2025 1y 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_free_work_struct ->interim_entry of ksmbd_work could be deleted after oplock is freed. We don't need to manage it with linked list. The interim request could be immediately sent whenever a oplock break wait is needed.

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
6.4% 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  –  <6.6.84
linuxlinux_kernel*≥6.7  –  <6.12.20
linuxlinux_kernel*≥6.13  –  <6.13.8
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any
linuxlinux_kernel6.14any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/62746ae3f5414244a96293e3b017be637b641280
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bb39ed47065455604729404729d9116868638d31
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eb51f6f59d19b92f6fe84d3873f958495ab32f0a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/62746ae3f5414244a96293e3b017be637b641280
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bb39ed47065455604729404729d9116868638d31
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/eb51f6f59d19b92f6fe84d3873f958495ab32f0a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fb776765bfc21d5e4ed03bb3d4406c2b86ff1ac3
    Patch