CVE-2026-46234
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)
vsock: fix buffer size clamping order
In the Linux kernel, the following vulnerability has been resolved: vsock: fix buffer size clamping order In vsock_update_buffer_size(), the buffer size was being clamped to the maximum first, and then to the minimum. If a user sets a minimum buffer size larger than the maximum, the minimum check overrides the maximum check, inverting the constraint. This breaks the intended socket memory boundaries by allowing the vsk->buffer_size to grow beyond the configured vsk->buffer_max_size. Fix this by checking the minimum first, and then the maximum. This ensures the buffer size never exceeds the buffer_max_size.
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) |
|---|---|---|---|---|---|
| b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 | affected | git | f6ec135941d2c1c2dbb87b5ce1783f4f6ac6ccca | Unavailable | None listed |
| b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 | affected | git | caf11dfea5233a69298a1c448bbf8d1639c80536 | Unavailable | None listed |
| b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 | affected | git | 01ef69785dc3162f588a361ab770b1e312800188 | Unavailable | None listed |
| b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 | affected | git | a998a7e250bf976539e05a00ec64a81292afecaa | Unavailable | None listed |
| b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 | affected | git | 310da27932dd0afe7ce7456dfe1f0814c3301f41 | Unavailable | None listed |
| b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 | affected | git | 2602f7bb5818e92315feeaeb71d8ce4d5c9ab160 | Unavailable | None listed |
| b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 | affected | git | 0b68881501460c3761f196469e1e503218c5e536 | Unavailable | None listed |
| b9f2b0ffde0c9b666b2b1672eb468b8f805a9b97 | affected | git | d114bfdc9b76bf93b881e195b7ec957c14227bab | 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) |
|---|---|---|---|---|---|
| 5.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.5 | 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 |
| 6.6.140 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.90 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.32 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.9 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |