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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.

PUBLISHED Reserved 2025-04-16 | Published 2025-09-16 | Updated 2025-09-29 | Assigner Linux

Product status

Default status
unaffected

2fa290372dfe7dd248b1c16f943f273a3e674f22 (git) before c76bf8359188a11f8fd790e5bbd6077894a245cc
affected

2fa290372dfe7dd248b1c16f943f273a3e674f22 (git) before 6d28659b692a0212f360f8bd8a58712b339f9aac
affected

2fa290372dfe7dd248b1c16f943f273a3e674f22 (git) before 799766208f09f95677a9ab111b93872d414fbad7
affected

Default status
affected

6.8
affected

Any version before 6.8
unaffected

6.12.45 (semver)
unaffected

6.16.5 (semver)
unaffected

6.17 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/c76bf8359188a11f8fd790e5bbd6077894a245cc

git.kernel.org/...c/6d28659b692a0212f360f8bd8a58712b339f9aac

git.kernel.org/...c/799766208f09f95677a9ab111b93872d414fbad7

cve.org (CVE-2025-39815)

nvd.nist.gov (CVE-2025-39815)

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