01 Record

CVE-2023-53275

ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()

MediumPUBLISHEDCNA: Linux

CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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02 Description

ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.0% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-09-16 08:11Z1 YR AGO

Last updated

2026-05-23 15:28Z5 MO AGO

Reserved

2025-09-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

a6a703a485aa9db4738d94ba31da451ab7c9ff85655676761af3cc81a4017a72

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux69d5dc286d05441ca2f854ae8df11201f6f9b706 to < 109f0aaa0b8838a88af9125b79579023539300a7, 1a462be52f4505a2719631fb5aa7bfdbd37bfd8d to < 9f9eed451176ffcac6b5ba0f6dae1a6b4a1cb0eb, 1a462be52f4505a2719631fb5aa7bfdbd37bfd8d to < 8703b26387e1fa4f8749db98d24c67617b873acb, 1a462be52f4505a2719631fb5aa7bfdbd37bfd8d to < cdd412b528dee6e0851c4735d6676ec138da13a4, 1a462be52f4505a2719631fb5aa7bfdbd37bfd8d to < b32e40379e5b2814de0c4bc199edc2d82317dc07, 1a462be52f4505a2719631fb5aa7bfdbd37bfd8d to < 1f4a08fed450db87fbb5ff5105354158bdbe1a22, 5.4.43 to < 5.4.255, 5.6—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/109f0aaa0b8838a88af9125b79579023539300a7
git.kernel.orghttps://git.kernel.org/stable/c/9f9eed451176ffcac6b5ba0f6dae1a6b4a1cb0eb
git.kernel.orghttps://git.kernel.org/stable/c/8703b26387e1fa4f8749db98d24c67617b873acb
git.kernel.orghttps://git.kernel.org/stable/c/cdd412b528dee6e0851c4735d6676ec138da13a4
git.kernel.orghttps://git.kernel.org/stable/c/b32e40379e5b2814de0c4bc199edc2d82317dc07
git.kernel.orghttps://git.kernel.org/stable/c/1f4a08fed450db87fbb5ff5105354158bdbe1a22

07 Fixed in

Debian 12

linux
Fixed in 6.1.52-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.4.13-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.4.13-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.