CVE-2026-31710
smb: client: fix dir separator in SMB1 UNIX mounts
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 1, 2026 |
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Affected Versions
Linux / Linux
4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880 < fbbfcf35e1ee3396631f3dc6214cb626aa9814c3 4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880 < c4d3fc5844d685441befd0caaab648321013cdfd
Linux / Linux
7.0