CVE-2025-39815

EUVD-2025-29599
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA-ADPADP
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 1%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.8 ≤
𝑥
< 6.12.45
linuxlinux_kernel
6.13 ≤
𝑥
< 6.16.5
linuxlinux_kernel
6.17:rc1
linuxlinux_kernel
6.17:rc2
linuxlinux_kernel
6.17:rc3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.159-1
not-affected
bookworm (security)
6.1.162-1
fixed
bullseye
5.10.223-1
not-affected
bullseye (security)
5.10.249-1
fixed
forky
6.18.9-1
fixed
sid
6.18.12-1
fixed
trixie
6.12.63-1
fixed
trixie (security)
6.12.73-1
fixed
References
https://git.kernel.org/stable/c/6d28659b692a0212f360f8bd8a58712b339f9aac
https://git.kernel.org/stable/c/799766208f09f95677a9ab111b93872d414fbad7
https://git.kernel.org/stable/c/c76bf8359188a11f8fd790e5bbd6077894a245cc