CVE-2026-64312
Last modified
CVE-2026-64312 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parallel fallback pcrypt installs pcrypt_aead_done() on the child AEAD request before trying to submit it through padata. If padata_do_parallel() returns -EBUSY, pcrypt falls back to calling the child AEAD directly. That fallback must not keep the padata completion callback. EPSS estimates a 0.50% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parallel fallback pcrypt installs pcrypt_aead_done() on the child AEAD request before trying to submit it through padata. If padata_do_parallel() returns -EBUSY, pcrypt falls back to calling the child AEAD directly. That fallback must not keep the padata completion callback. Otherwise an asynchronous completion runs pcrypt_aead_done() even though the request was never enrolled in padata. Restore the original request callback and callback data before calling the child AEAD directly. This keeps the fallback path aligned with a direct AEAD request while leaving the parallel path unchanged.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.19.325, < 4.20 |
| Linux | Linux Kernel | >= 5.4.287, < 5.5 |
| Linux | Linux Kernel | >= 5.10.231, < 5.10.261 |
| Linux | Linux Kernel | >= 5.15.174, < 5.15.212 |
| Linux | Linux Kernel | >= 6.1.120, < 6.1.178 |
| Linux | Linux Kernel | >= 6.6.64, < 6.6.145 |
| Linux | Linux Kernel | >= 6.11.11, < 6.12 |
| Linux | Linux Kernel | >= 6.12.2, < 6.12.96 |
| Linux | Linux Kernel | >= 6.13, < 6.18.39 |
| Linux | Linux Kernel | >= 6.19, < 7.1.4 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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