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CVE-2023-53400

ALSA: hda: Fix Oops by 9.1 surround channel names

MEDIUM
5.5
CVSS Score
Published: September 18, 2025 at 01:33 PM UTC
Updated: June 17, 2026 at 06:45 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix Oops by 9.1 surround channel names get_line_out_pfx() may trigger an Oops by overflowing the static array with more than 8 channels. This was reported for MacBookPro 12,1 with Cirrus codec. As a workaround, extend for the 9.1 channels and also fix the potential Oops by unifying the code paths accessing the same array with the proper size check.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
v < 4.14.3163.9 ≤ v < 4.14.3163.9 ≤ v < 4.19.2843.9 ≤ v < 5.10.1813.9 ≤ v < 5.15.1133.9 ≤ v < 5.4.2443.9 ≤ v < 6.1.303.9 ≤ v < 6.3.43.9 ≤ v < 6.44.15 ≤ v < 4.19.2844.20 ≤ v < 5.4.2445.11 ≤ v < 5.15.1135.16 ≤ v < 6.1.305.5 ≤ v < 5.10.1816.2 ≤ v < 6.3.4247d85ee068610c50d66ee0cd3130e02c69f5f2e3.96.4 rc16.4 rc2
Vendor states this is fixed in 082dcd51667b29097500c824c37f24da997a6a8a (fixed)
Vendor states this is fixed in 3b44ec8c5c44790a82f07e90db45643c762878c6 (fixed)
Vendor states this is fixed in 4ef155ddf9578bf035964d58739fdcd7dd44b4a4 (fixed)
Vendor states this is fixed in 546b1f5f45a355ae0d3a8041cdaca597dfcac825 (fixed)
Vendor states this is fixed in b5694aae4c2d9a288bafce7d38f122769e0428e6 (fixed)
Vendor states this is fixed in dc8c569d59f17b17d7bca4f68c36bd571659921e (fixed)
Vendor states this is fixed in e8c7d7c43d5edd20e518fe1dfb2371d1fe6e8bb8 (fixed)
Vendor states this is fixed in fcf637461019e9a5a0c12fc5c42a9db1779b0634 (fixed)
Vendor states this is fixed in 3.9 (unaffected)
Vendor states this is fixed in 4.14.316 (unaffected)
Vendor states this is fixed in 4.19.284 (unaffected)
Vendor states this is fixed in 5.10.181 (unaffected)
Vendor states this is fixed in 5.15.113 (unaffected)
Vendor states this is fixed in 5.4.244 (unaffected)
Vendor states this is fixed in 6.1.30 (unaffected)
Vendor states this is fixed in 6.3.4 (unaffected)
Vendor states this is fixed in 6.4 (unaffected)

References (8)

Patch
Source: cverecord
https://git.kernel.org/stable/c/082dcd51667b29097500c824c37f24da997a6a8a
Patch
Source: cverecord
https://git.kernel.org/stable/c/b5694aae4c2d9a288bafce7d38f122769e0428e6
Patch
Source: cverecord
https://git.kernel.org/stable/c/4ef155ddf9578bf035964d58739fdcd7dd44b4a4
Patch
Source: cverecord
https://git.kernel.org/stable/c/546b1f5f45a355ae0d3a8041cdaca597dfcac825
Patch
Source: cverecord
https://git.kernel.org/stable/c/e8c7d7c43d5edd20e518fe1dfb2371d1fe6e8bb8
Patch
Source: cverecord
https://git.kernel.org/stable/c/dc8c569d59f17b17d7bca4f68c36bd571659921e
Patch
Source: cverecord
https://git.kernel.org/stable/c/fcf637461019e9a5a0c12fc5c42a9db1779b0634
Patch
Source: cverecord
https://git.kernel.org/stable/c/3b44ec8c5c44790a82f07e90db45643c762878c6

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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