CVE-2026-74521
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ksmbd: use memcmp() to compare ClientGUIDs
In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp() to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp() stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equal. Use memcmp() in SMB3 multichannel session binding and FSCTL_VALIDATE_NEGOTIATE_INFO to compare all SMB2_CLIENT_GUID_SIZE bytes.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 | affected | git | 7bde6f181fa307d2cc1ec2b0313ac8e9811c8232 | Unavailable | None listed |
| e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 | affected | git | 5a0367bf5ce420be7b19936def2e90adcf32a683 | Unavailable | None listed |
| e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 | affected | git | ba2a5b66f1d414eb8403d655f8813783892cfc85 | Unavailable | None listed |
| e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 | affected | git | a386c83043015a703e227775f778e40343f45911 | Unavailable | None listed |
| e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 | affected | git | d535363299822c5caa543787b21bd5cfa3e41949 | Unavailable | None listed |
| e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 | affected | git | e8bb506e6ef749ac0336f3e579d8d02396b7d832 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.15 | Unavailable | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.111 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.53 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.8 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |