🔐 CVE Alert

CVE-2026-64393

UNKNOWN 0.0

ksmbd: run set info with opener credentials

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

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.

Vendor linux
Product linux
Ecosystems
Industries
Technology
Published Jul 25, 2026
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Affected Versions

Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5cbabf3a71575cd31bc7785d92d4ab42338a654b 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b35afd5cf8fab236ef21117e42ee45691d4ffa7b 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0ce682867fd506f61f40c76bde7e4205bde34e87 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 20ee516a62989a8d505ee432f9e59525ea23984e 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8cc9ec711f5255167247a9ab6a7179b787426ed7 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b383bcad3d2fe634b26efbce53e22bbb5753a520 0 < 6.1.178 0 < 6.6.145 0 < 6.12.96 0 < 6.18.39 0 < 7.1.4
Linux / Linux
All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗
git.kernel.org: https://git.kernel.org/stable/c/5cbabf3a71575cd31bc7785d92d4ab42338a654b git.kernel.org: https://git.kernel.org/stable/c/b35afd5cf8fab236ef21117e42ee45691d4ffa7b git.kernel.org: https://git.kernel.org/stable/c/0ce682867fd506f61f40c76bde7e4205bde34e87 git.kernel.org: https://git.kernel.org/stable/c/20ee516a62989a8d505ee432f9e59525ea23984e git.kernel.org: https://git.kernel.org/stable/c/8cc9ec711f5255167247a9ab6a7179b787426ed7 git.kernel.org: https://git.kernel.org/stable/c/b383bcad3d2fe634b26efbce53e22bbb5753a520