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.
Published: 2026-05-27
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 16 Jun 2026 06:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
CPEs cpe:2.3:o:linux:linux_kernel:6.19:-:*:*:*:*:*:*

Sat, 30 May 2026 11:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Thu, 28 May 2026 03:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

Thu, 28 May 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-825
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important


Wed, 27 May 2026 19:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

Wed, 27 May 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title smb: client: fix potential UAF and double free in smb2_open_file()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-30T12:10:16.170Z

Reserved: 2026-05-13T15:03:33.090Z

Link: CVE-2026-45972

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-05-27T14:17:14.173

Modified: 2026-06-17T10:52:49.483

Link: CVE-2026-45972

cve-icon Redhat

Severity : Important

Publid Date: 2026-05-27T00:00:00Z

Links: CVE-2026-45972 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-18T00:00:05Z

Weaknesses