CVE-2026-31710
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix dir separator in SMB1 UNIX mounts
When calling cifs_mount_get_tcon() with SMB1 UNIX mounts, @cifs_sb->mnt_cifs_flags needs to be read or updated only after calling reset_cifs_unix_caps(), otherwise it might end up with missing CIFS_MOUNT_POSIXACL and CIFS_MOUNT_POSIX_PATHS bits.
This fixes the wrong dir separator used in paths caused by the missing CIFS_MOUNT_POSIX_PATHS bit in cifs_sb_info::mnt_cifs_flags.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880 < fbbfcf35e1ee3396631f3dc6214cb626aa9814c3 | affected |
| Linux | Linux | 4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880 < c4d3fc5844d685441befd0caaab648321013cdfd | affected |
| Linux | Linux | 7.0 | affected |
| Linux | Linux | 0 < 7.0 | unaffected |
| Linux | Linux | 7.0.2 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/fbbfcf35e1ee3396631f3dc6214cb626aa9814c3
- https://git.kernel.org/stable/c/c4d3fc5844d685441befd0caaab648321013cdfd
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.