CVE-2026-64257
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 overlapping data areas in SMB2 responses
In the Linux kernel, the following vulnerability has been resolved: smb: client: reject overlapping data areas in SMB2 responses Commit 53b7c271f06b ("smb: client: restrict implied bcc[0] exemption to responses without data area") restricted the implied bcc[0] length exception to responses without a data area. However, the overlap handling in __smb2_calc_size() clears data_length, which can make an invalid response appear to have no data area and so qualify for the exception. Track data area overlap separately and reject such responses before applying the length compatibility exceptions.
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) |
|---|---|---|---|---|---|
| 31c6312608c60b72a1feb99a5afb680645a3e8a3 | affected | git | 445ece263131780dee273d727a4d6f11934feec7 | Unavailable | None listed |
| 573e502d14714d2947e22e7eff40ec20a6a44a42 | affected | git | 36bfa52459e45c0d5b668de2f1c91f6dc5c67775 | Unavailable | None listed |
| 419ec1b604d7fb60c10aec2dc062371f9fcd4940 | affected | git | 4a9d2657d3e05f6ed09c148cb127b4e58702275f | Unavailable | None listed |
| ceb875a375dedbf51c9425c1d13a2d7a8435c08c | affected | git | fdafa1e68dc75045b7b617e6e7d2854950804d83 | Unavailable | None listed |
| 6e9d10f62773b99bd927940fd9cbdfe7207e23ff | affected | git | 57cba95f0e97c6f6e45e6731da30aff091bd7460 | Unavailable | None listed |
| 53b7c271f06be4dd5cfc8c6ef552a8355c891a7f | affected | git | 8986c932905ea508d66da421eb2eb6e676ace1fe | Unavailable | None listed |
| 8d0bbc78046d264bbf6a574ea6f9072258a43e35 | affected | git | Unavailable | Unavailable | None listed |
| b6a381c01e2ac98a48e32ac0f2a45bbadd9e26b0 | affected | git | Unavailable | Unavailable | None listed |
| 5.10.261 | affected | semver | 5.11 | Unavailable | None listed |
| 5.15.212 | affected | semver | 5.16 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
No explicit version tuples; consult this entry's default status.