PT-2025-49446 · Thundercomm+4 · Thundercomm Dragonboard 845C+4

CVE-2025-40317

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Published

2025-10-22

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Updated

2026-08-30

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the Linux kernel related to the regmap/slimbus component. A correction was made to the bus context pointer used in regmap initialization calls, specifically within the devm regmap init slimbus() and regmap init slimbus() functions. The initial problem was revealed by commit 4e65bda8273c, which caused audio playback issues on certain hardware configurations, such as the Thundercomm Dragonboard 845c. This resulted in a kernel paging request error during audio processing. The correction ensures the correct bus context pointer, which is 'slimbus', is used during regmap initialization.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Resource Release

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Weakness Enumeration

Related Identifiers

BDU:2026-11406
CVE-2025-40317
DLA-4404-1
ECHO-CBF0-2111-8EE8
MGASA-2026-0017
MGASA-2026-0018
OPENSUSE-SU-2026:20145-1
SUSE-SU-2026:0278-1
SUSE-SU-2026:0281-1
SUSE-SU-2026:0293-1
SUSE-SU-2026:0315-1
SUSE-SU-2026:20207-1
SUSE-SU-2026:20220-1
SUSE-SU-2026:20228-1
SUSE-SU-2026:20477-1
SUSE-SU-2026:20498-1
SUSE-SU-2026:20564-1
SUSE-SU-2026:20845-1
SUSE-SU-2026:20876-1
USN-8029-1
USN-8029-2
USN-8029-3
USN-8030-1
USN-8048-1
USN-8095-1
USN-8095-2
USN-8095-3
USN-8095-4
USN-8095-5
USN-8096-1
USN-8096-2
USN-8096-3
USN-8096-4
USN-8096-5
USN-8100-1
USN-8116-1
USN-8125-1
USN-8126-1
USN-8141-1
USN-8163-1
USN-8163-2
USN-8165-1
USN-8243-1
USN-8261-1

Affected Products

Debian
Linuxmint
Linux Kernel
Thundercomm Dragonboard 845C
Ubuntu