GHSA-83mf-wfc5-x4x3CriticalCVSS 9.8
In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener...
🔗 CVE IDs covered (1)
📋 Description
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: use opener credentials for ADS I/O
Alternate data streams are stored as xattrs. Unlike regular file I/O, their read and write paths therefore call VFS xattr helpers which recheck inode permissions and LSM policy using the current task credentials.
Run ADS I/O with the credentials captured when the SMB handle was opened.
🔗 References (6)
- https://nvd.nist.gov/vuln/detail/CVE-2026-64391
- https://git.kernel.org/stable/c/2b4592cea214683de0f2ce6f8c22c097fb0ea1ab
- https://git.kernel.org/stable/c/52a56cf53ec834c44ac1b4d16d585f26613ee5ce
- https://git.kernel.org/stable/c/a8f5d39971bbad9340d49cd41b0e2da9452a649d
- https://git.kernel.org/stable/c/baa5e094886fffa7e6272edcb5e08be5ce28262c
- https://github.com/advisories/GHSA-83mf-wfc5-x4x3