GHSA-p59x-f8qp-h8m2HighCVSS 7.8
In the Linux kernel, the following vulnerability has been resolved: smb/client: fix chown/chgrp...
🔗 CVE IDs covered (1)
📋 Description
In the Linux kernel, the following vulnerability has been resolved:
smb/client: fix chown/chgrp with SMB3 POSIX Extensions
Ownership (chown) and group (chgrp) modifications were being ignored when mounting with SMB3 POSIX Extensions unless CIFS_MOUNT_CIFS_ACL or CIFS_MOUNT_MODE_FROM_SID were also explicitly set.
Fix this by checking for posix_extensions in cifs_setattr_nounix() when updating UID and GID, ensuring that id_mode_to_cifs_acl() is called to map and set the ownership/group information on the server.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-64388
- https://git.kernel.org/stable/c/550cfb8a81181331d4d0f76ab75ee58a0bf41e3e
- https://git.kernel.org/stable/c/760ef2c579c2609cf17fb1cd5392f64d42d43d33
- https://git.kernel.org/stable/c/3eaec47518e126e6dcd1a48521d740278073f0ec
- https://git.kernel.org/stable/c/27ead8c5418af6bfab711079fecb9414d78d4cae
- https://git.kernel.org/stable/c/6825a45f6b8ef76b0ee32649ec3d6e39ca143a18
- https://github.com/advisories/GHSA-p59x-f8qp-h8m2