# CVE-2026-64592: linux: In the Linux kernel, the following vulnerability has been resolved:  riscv: mm: Unconditionally sfence.vma for spurio...

CVE-2026-64592 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-64592, released August 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-64592
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 6, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  riscv: mm: Unconditionally sfence.vma for spurious fault  Svvptc does not guarantee that it's safe to just return here. Since we have already cleared our bit, if, theoretically, the bounded timeframe for the accessed page to become valid still hasn't happened after sret, we could fault again and actually crash.  Hopefully, these spurious faults should be rare enough that this is an acceptable slowdown.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.96-1 | [DEBIAN-CVE-2026-64592](https://patchblox.com/security/data/fix/linux/debian-cve-2026-64592.md) | Aug 6, 2026 |
| Linux | linux Debian 14 | 7.1.4-1 | [DEBIAN-CVE-2026-64592](https://patchblox.com/security/data/fix/linux/debian-cve-2026-64592.md) | Aug 6, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.100-1~deb12u1 | [DEBIAN-CVE-2026-64592](https://patchblox.com/security/data/fix/linux/debian-cve-2026-64592.md) | Aug 6, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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