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CVE-2026-45972 Details

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF and double free in smb2_open_file() Zero out @err_iov and @err_buftype before retrying SMB2_open() to prevent an UAF bug if @data != NULL, otherwise a double free.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: redhat-SADPCVSS-B:7 HIGHVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/security/cve/CVE-2026-45972 redhat-SADP
https://bugzilla.redhat.com/show_bug.cgi?id=2481973 redhat-SADP
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45972.json redhat-SADP
https://git.kernel.org/stable/c/4d339b219004869e96c4ce56b8891f83a38da4c0 kernel.orgPatch
https://git.kernel.org/stable/c/639deb962986ef2f5e2a6d5a600c66f922471e81 kernel.orgPatch

see all 9 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]
CWE-825Expired Pointer Dereferenceredhat-SADP

Affected Products

ProductVersions
linux linux kernel
>= 6.1.163, < 6.1.165
>= 6.6.124, < 6.6.128
>= 6.12.70, < 6.12.75
>= 6.18.10, < 6.18.14
>= 6.19.1, < 6.19.4

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.19:-:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-45972
NVD Published Date:
May 27, 2026
NVD Last Modified:
Jul 15, 2026
Source:
kernel.org
CVE-2026-45972 Details - Not Deferred