CVE-2026-64306
Published: July 29, 2026Last modified: August 14, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: drbg - Fix returning success on failure in CTR_DRBG drbg_ctr_generate() sometimes returns success when it fails, leaving the output buffer uninitialized. Fix it.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.182-r0) |
| 25 LTS | linux-lts | Fixed (6.12.103-r0) | |
| Stream | linux-lts | Fixed (6.18.43-r0) |
References
- https://git.kernel.org/stable/c/074db6db03a0aaa78f05ca9d4838053713796665
- https://git.kernel.org/stable/c/23b8b188cb32e5531d0f8d3af9506f8959cb369e
- https://git.kernel.org/stable/c/39a31ad9e2a5ed7e9c9c6f711dca96c8c8f5f26b
- https://git.kernel.org/stable/c/75597e8774f319152744d24e0683d9393540a951
- https://git.kernel.org/stable/c/7b03312491f9fe6ba4d60c4023e7e61d2d1fed96
- https://git.kernel.org/stable/c/a9e886f73dd717027028bb7e3bbca93601ecdfc7
- https://git.kernel.org/stable/c/bbbac12083eff489b35d848332f0dff311131344
- https://git.kernel.org/stable/c/cc42fb40171c249bb859071d81b4eb007398a0bc