CVE-2025-37817 | mcb: fix a double free bug in chameleon_parse_gdd()

In the Linux kernel, the following vulnerability has been resolved: mcb: fix a double free bug in chameleon_parse_gdd() In chameleon_parse_gdd(), if mcb_device_register() fails, 'mdev' would be released in mcb_device_register() via put_device(). Thus, goto 'err' label and free 'mdev' again causes a double free. Just return if mcb_device_register() fails.

Published: 2025-05-08 Last update: 2025-11-12 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-37817 is rated Low Risk (33.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.17%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-37817

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.07% 0.17% +0.10%
2 2026-03-04 0.01% 0.07% +0.05%
3 2025-11-13 — 0.01% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-37817

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2025-37817

OS Trackers for CVE-2025-37817

vendor priority summary link
debian not yet assigned CVE-2025-37817 not yet assigned 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-2025-37817
redhat — — https://access.redhat.com/security/cve/CVE-2025-37817
suse medium CVE-2025-37817 severity moderate: SUSE including 25 source package names (cluster-md-kmp-default, dlm-kmp-default, …), 95 product×package rows across 21 product lines (SUSE Linux Enterprise High Availability Extension 15 SP7, SUSE Linux Enterprise Live Patching 12 SP5, … (21 product lines)): Known Not Affected 95. https://www.suse.com/security/cve/CVE-2025-37817/
ubuntu medium CVE-2025-37817 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 167, released 164, needed 44, not-affected 28, needs-triage 2, pending 1. https://ubuntu.com/security/CVE-2025-37817

Affected software / configurations for CVE-2025-37817

Vendor Product Version Raw CPE
linux linux_kernel >= 3.15, < 5.4.293 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.5, < 5.10.237 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.11, < 5.15.181 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.16, < 6.1.136 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.2, < 6.6.89 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.7, < 6.12.26 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.13, < 6.14.5 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 6.15 cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*
linux linux_kernel 6.15 cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*
linux linux_kernel 6.15 cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2025-37817

URL Tags
https://git.kernel.org/stable/c/4ffe8c9fb561e4427dd1a3056cd5b3685b74f78d Patch
https://git.kernel.org/stable/c/59f993cd36b6e28a394ba3d977e8ffe5c9884e3b Patch
https://git.kernel.org/stable/c/7c7f1bfdb2249f854a736d9b79778c7e5a29a150 Patch
https://git.kernel.org/stable/c/96838eb1836fd372e42be5db84f0b333b65146a6 Patch
https://git.kernel.org/stable/c/bcc7d58ee5173e34306026bd01e1fbf75e169d37 Patch
https://git.kernel.org/stable/c/c5b8a549ef1fcc6066b037a3962c79d60465ba0b Patch
https://git.kernel.org/stable/c/d70184958b0ea8c0fd52e2b456654b503e769fc8 Patch
https://git.kernel.org/stable/c/df1a5d5c6134224f9298e5189230f9d29ae50cac Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html Mailing List Third Party Advisory
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