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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
743f70406264348c0830f38409eb6c40a42fb2db affected < 96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74
3a6d6b332f92990958602c1e35ce0173e2dd62e9 affected < 7425453ea16dbc3bbb0f6cac4d60b537e5e4d151
b64e3b5d8d759dd4333992e4ba4dadf9359952c8 affected < 4d339b219004869e96c4ce56b8891f83a38da4c0
9ee608a64e37cea5b4b13e436c559dd0fb2ad1b5 affected < e66dcf7bb9c4df5582c82bc3582725abcbfbea73
e3a43633023e3cacaca60d4b8972d084a2b06236 affected < 639deb962986ef2f5e2a6d5a600c66f922471e81
e3a43633023e3cacaca60d4b8972d084a2b06236 affected < ebbbc4bfad4cb355d17c671223d0814ee3ef4eda
6.1.163 affected < 6.1.165
6.6.124 affected < 6.6.128
6.12.70 affected < 6.12.75
6.18.10 affected < 6.18.14
Linux Linux affected
Version Status Constraints
6.19 affected —
0 unaffected < 6.19
6.1.165 unaffected ≤ 6.1.*
6.6.128 unaffected ≤ 6.6.*
6.12.75 unaffected ≤ 6.12.*
6.18.14 unaffected ≤ 6.18.*
6.19.4 unaffected ≤ 6.19.*
7.0 unaffected ≤ *

No data.

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/4d339b219004869e96c4ce56b8891f83a38da4c0 cve-icon cve-icon
https://git.kernel.org/stable/c/639deb962986ef2f5e2a6d5a600c66f922471e81 cve-icon cve-icon
https://git.kernel.org/stable/c/7425453ea16dbc3bbb0f6cac4d60b537e5e4d151 cve-icon cve-icon
https://git.kernel.org/stable/c/96e53bb3ee2f354cf6b4ab07bcc56e500f8b3f74 cve-icon cve-icon
https://git.kernel.org/stable/c/e66dcf7bb9c4df5582c82bc3582725abcbfbea73 cve-icon cve-icon
https://git.kernel.org/stable/c/ebbbc4bfad4cb355d17c671223d0814ee3ef4eda cve-icon cve-icon
History

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

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-27T12:18:31.500Z

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

Link: CVE-2026-45972

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-05-27T14:48:03.013

Link: CVE-2026-45972

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.