CVE-2026-64592riscv: mm: Unconditionally sfence.vma for spurious fault
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 503638e0babf364061bc50fca5103b00a56cc50a before c4df24702bfc3cd2bed7746b94dc6139a3fa5428; 503638e0babf364061bc50fca5103b00a56cc50a builds before 4d730cab96e6b75e4a07c4baf37294ebc07f795e; from 503638e0babf364061bc50fca5103b00a56cc50a before ede985ff4b569ed2454024f8bb107a6729fe08aa; 503638e0babf364061bc50fca5103b00a56cc50a builds before 1b2c6b56a9fa0dcbef461039937de22b1cbecc7d | CNA record |
References
- https://git.kernel.org/stable/c/c4df24702bfc3cd2bed7746b94dc6139a3fa5428
- https://git.kernel.org/stable/c/4d730cab96e6b75e4a07c4baf37294ebc07f795e
- https://git.kernel.org/stable/c/ede985ff4b569ed2454024f8bb107a6729fe08aa
- https://git.kernel.org/stable/c/1b2c6b56a9fa0dcbef461039937de22b1cbecc7d
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.