CVE-2025-38158 [Medium] | Security Vulnerability in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: hisi_acc_vfio_pci: fix XQE dma address error The dma addresses of EQE and AEQE are wrong after migration and results in guest kernel-mode encryption services failure. Comparing the definition of hardware registers, we found that there was an error when the data read from the register was combined into an address. Therefore, the address combination sequence needs to be corrected. Even after fixing the above problem, we still have an issue where the Guest from an old kernel can get migrated to new kernel and may result in wrong data. In order to ensure that the address is correct after migration, if an old magic number is detected, the dma address needs to be updated.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-04-29	0.01%	0.05%	+0.04%
2	2025-07-03	—	0.01%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-04-29

0.01%

0.05%

+0.04%

2025-07-03

—

0.01%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.5	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:L) A normal user session is enough; they don’t have to be admin. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	1.8	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.5

3.1

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L): A normal user session is enough; they don’t have to be admin.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

1.8

3.6

[email protected]

OS Trackers for CVE-2025-38158

vendor	priority	summary	link
`debian`	unimportant	CVE-2025-38158 unimportant priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6.	https://security-tracker.debian.org/tracker/CVE-2025-38158
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2025-38158
`suse`	medium	CVE-2025-38158 severity moderate: SUSE including 432 source package names (2.1.3-6.67:kernel-default-base-6.4.0-32.1.21.10, 2.1.3-7.44:kernel-default-6.4.0-32.1, …), 863 product×package rows across 180 product lines (Container suse/sl-micro/6.0/base-os-container, Container suse/sl-micro/6.0/kvm-os-container, … (180 product lines)): Fixed 476, Known Affected 231, Known Not Affected 156.	https://www.suse.com/security/cve/CVE-2025-38158/
`ubuntu`	medium	CVE-2025-38158 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, ignored 164, released 137, not-affected 100, needed 2, needs-triage 2, pending 1.	https://ubuntu.com/security/CVE-2025-38158

Affected software / configurations for CVE-2025-38158

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 5.18, < 6.1.142	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.2, < 6.6.94	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.7, < 6.12.34	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.13, < 6.15.3	cpe:2.3:o:linux:linux_kernel::::::::
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*

References for CVE-2025-38158

URL	Tags
https://git.kernel.org/stable/c/7710c883eb8cb5cf510ca47ec0e26c6cb7e94a4f	Patch
https://git.kernel.org/stable/c/809a9c10274e1bcf6d05f1c0341459a425a4f05f	Patch
https://git.kernel.org/stable/c/884a76e813178778d271fea59783763d32bb7e72	Patch
https://git.kernel.org/stable/c/8bb7170c5a055ea17c6857c256ee73c10ff872eb	Patch
https://git.kernel.org/stable/c/f0423873e7aeb69cb68f4e8fa3827832e7b037ba	Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory

URL

CVE-2025-38158 | hisi_acc_vfio_pci: fix XQE dma address error

Exploit prediction scoring system (EPSS) score for CVE-2025-38158

Common vulnerability scoring system (CVSS) metrics for CVE-2025-38158

Weakness enumeration for CVE-2025-38158

OS Trackers for CVE-2025-38158

Affected software / configurations for CVE-2025-38158

References for CVE-2025-38158