> CVE-2026-64393

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PUBLISHED
2026-07-25 10:17
MODIFIED
2026-07-25 10:17
EPSS (Prob. Exploit)
0.48%
Top 59.6%
DATA SOURCES:
NVD 🔗 2026-07-25 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-11-02 MSRC 🔗 2026-08-01

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: ksmbd: run set info with opener credentials SMB2 SET_INFO handlers call path-based VFS helpers after checking the access mask granted to the SMB handle. Those helpers perform their owner, inode permission and LSM checks using the current ksmbd worker credentials. Run the complete SET_INFO dispatch with the credentials captured when the handle was opened. This also removes the separate security information credential setup and keeps all SET_INFO classes under one credential scope. Direct override_creds() is used because it can nest with the request credential overrides already used by rename and link helpers.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

ksmbd: run set info with opener credentials

AFFECTED PACKAGES:
Unknown / Unknown
Linux / Kernel

> HISTORIQUE DES MODIFICATIONS

Première apparition
25/07/2026 10:17
Source: NVD
Total des modifications: 0 Dernière mise à jour: 3 months ago

> REFERENCES

https://git.kernel.org/stable/c/0ce682867fd506f61f40c76bde7e4205bde34e87
https://git.kernel.org/stable/c/20ee516a62989a8d505ee432f9e59525ea23984e
https://git.kernel.org/stable/c/5cbabf3a71575cd31bc7785d92d4ab42338a654b
https://git.kernel.org/stable/c/8cc9ec711f5255167247a9ab6a7179b787426ed7
https://git.kernel.org/stable/c/b35afd5cf8fab236ef21117e42ee45691d4ffa7b
https://git.kernel.org/stable/c/b383bcad3d2fe634b26efbce53e22bbb5753a520
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