CVE-2026-31608

CRITICAL EPSS 36.4%
Published Apr 24, 20262mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Apr 24, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list() smb_direct_flush_send_list() already calls smb_direct_free_sendmsg(), so we should not call it again after post_sendmsg() moved it to the batch list.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
36.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-415

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel* <6.18.24
linuxlinux_kernel*≥6.19  –  <6.19.14
linuxlinux_kernel*≥7.0  –  <7.0.1

References 4

  • git.kernel.org https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72
    Patch