In the Linux kernel, the following vulnerability has been resolved:

smb: server: fix use-after-free in smb2_open()

The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is
dereferenced after rcu_read_unlock(), creating a use-after-free
window.

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
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < e1b21e6066615e7d3d3a7aa2677e415e563fd7cc
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < b720c84087cb547f23ce03eab93568c1769e4556
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 54b48ae83de8bb06e65079d96368efe359d4909c
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 8f5b1a7cb009a93c48e9e334a2f59a660f9afc07
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 190e5f808e8058640b408ccfed25440b441a718a
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 1e689a56173827669a35da7cb2a3c78ed5c53680
Linux Linux affected
Version Status Constraints
6.1.167 unaffected ≤ 6.1.*
6.6.130 unaffected ≤ 6.6.*
6.12.78 unaffected ≤ 6.12.*
6.18.19 unaffected ≤ 6.18.*
6.19.9 unaffected ≤ 6.19.*
7.0 unaffected ≤ *

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/190e5f808e8058640b408ccfed25440b441a718a cve-icon cve-icon
https://git.kernel.org/stable/c/1e689a56173827669a35da7cb2a3c78ed5c53680 cve-icon cve-icon
https://git.kernel.org/stable/c/54b48ae83de8bb06e65079d96368efe359d4909c cve-icon cve-icon
https://git.kernel.org/stable/c/8f5b1a7cb009a93c48e9e334a2f59a660f9afc07 cve-icon cve-icon
https://git.kernel.org/stable/c/b720c84087cb547f23ce03eab93568c1769e4556 cve-icon cve-icon
https://git.kernel.org/stable/c/e1b21e6066615e7d3d3a7aa2677e415e563fd7cc cve-icon cve-icon
History

Fri, 08 May 2026 14:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2_open() The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is dereferenced after rcu_read_unlock(), creating a use-after-free window.
Title smb: server: fix use-after-free in smb2_open()
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: 2026-05-08T14:21:27.319Z

Reserved: 2026-05-01T14:12:56.006Z

Link: CVE-2026-43378

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-08T15:16:48.990

Modified: 2026-05-08T15:16:48.990

Link: CVE-2026-43378

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T16:15:12Z

Weaknesses

No weakness.