CVE-2026-46243
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)
smb: client: reject userspace cifs.spnego descriptions
In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.spnego descriptions cifs.spnego key descriptions contain authority-bearing fields such as pid, uid, creduid, and upcall_target that cifs.upcall treats as kernel-originating inputs. However, userspace can also create keys of this type through request_key(2) or add_key(2), allowing those fields to be supplied without CIFS origin. Only accept cifs.spnego descriptions while CIFS is using its private spnego_cred to request the key.
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) |
|---|---|---|---|---|---|
| f1d662a7d5e5322e583aad6b3cfec03d8f27b435 | affected | git | 7713bd320ed4fc3d08a227cd8e41242219a16981 | Unavailable | None listed |
| f1d662a7d5e5322e583aad6b3cfec03d8f27b435 | affected | git | 9544559e59438a4b609b2fdfa0763d8360572824 | Unavailable | None listed |
| f1d662a7d5e5322e583aad6b3cfec03d8f27b435 | affected | git | cf20038657d6d4974349556a34e08fe0490bebbc | Unavailable | None listed |
| f1d662a7d5e5322e583aad6b3cfec03d8f27b435 | affected | git | 2035acfb17221729b1b8ac335e941868a04ca079 | Unavailable | None listed |
| f1d662a7d5e5322e583aad6b3cfec03d8f27b435 | affected | git | a3bbda6502a9398b816fa2e71c9a3f955f58013d | Unavailable | None listed |
| f1d662a7d5e5322e583aad6b3cfec03d8f27b435 | affected | git | 91f89c1d83e80417629791fcef6af8140d7d01c8 | Unavailable | None listed |
| f1d662a7d5e5322e583aad6b3cfec03d8f27b435 | affected | git | 0aece6685fc80a8de492688ca2315fb86ec379c7 | Unavailable | None listed |
| f1d662a7d5e5322e583aad6b3cfec03d8f27b435 | affected | git | 3da1fdf4efbc490041eb4f836bf596201203f8f2 | 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) |
|---|---|---|---|---|---|
| 2.6.24 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.24 | Unavailable | None listed |
| 5.10.258 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.209 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.142 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.92 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.34 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.11 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |