CVE-2026-31710

Source
https://cve.org/CVERecord?id=CVE-2026-31710
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31710.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-31710
Downstream
Related
Published
2026-05-01T13:56:07Z
Modified
2026-08-12T03:30:40Z
Summary
smb: client: fix dir separator in SMB1 UNIX mounts
Details

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.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31710.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880
Fixed
fbbfcf35e1ee3396631f3dc6214cb626aa9814c3
Fixed
c4d3fc5844d685441befd0caaab648321013cdfd

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31710.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
7.0.0
Fixed
7.0.2

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31710.json"