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CVE-2025-39815

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CVE-2025-39815

Published: Sep 16, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: fix stack overrun when loading vlenb The userspace load can put up to 2048 bits into an xlen bit stack buffer. We want only xlen bits, so check the size beforehand.

VendorProductVersions

Linux

Linux

affected
2fa290372dfe7dd248b1c16f943f273a3e674f22 - < c76bf8359188a11f8fd790e5bbd6077894a245cc
affected
2fa290372dfe7dd248b1c16f943f273a3e674f22 - < 6d28659b692a0212f360f8bd8a58712b339f9aac
affected
2fa290372dfe7dd248b1c16f943f273a3e674f22 - < 799766208f09f95677a9ab111b93872d414fbad7

Linux

Linux

affected
6.8
unaffected
0 - < 6.8
unaffected
6.12.45 - <= 6.12.*
unaffected
6.16.5 - <= 6.16.*
unaffected
6.17 - <= *

References

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