CVE-2026-64592
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedAug 6, 2026
First seenAug 6, 2026
How to fix
Update
- Linux Linuxc4df24702bfc3cd2bed7746b94dc6139a3fa5428, 4d730cab96e6b75e4a07c4baf37294ebc07f795e, ede985ff4b569ed2454024f8bb107a6729fe08aa, 1b2c6b56a9fa0dcbef461039937de22b1cbecc7d or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 503638e0babf364061bc50fca5103b00a56cc50a ≤ v < c4df24702bfc3cd2bed7746b94dc6139a3fa5428, 503638e0babf364061bc50fca5103b00a56cc50a ≤ v < 4d730cab96e6b75e4a07c4baf37294ebc07f795e, 503638e0babf364061bc50fca5103b00a56cc50a ≤ v < ede985ff4b569ed2454024f8bb107a6729fe08aa, 503638e0babf364061bc50fca5103b00a56cc50a ≤ v < 1b2c6b56a9fa0dcbef461039937de22b1cbecc7d, 6.12 | c4df24702bfc3cd2bed7746b94dc6139a3fa5428, 4d730cab96e6b75e4a07c4baf37294ebc07f795e, ede985ff4b569ed2454024f8bb107a6729fe08aa, 1b2c6b56a9fa0dcbef461039937de22b1cbecc7d |
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