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CVE-2026-68346

ALSA: hda: cs35l41: validate and free ACPI mute object

In the Linux kernel, the following vulnerability has been resolved:

ALSA: hda: cs35l41: validate and free ACPI mute object

cs35l41_get_acpi_mute_state() evaluates a _DSM method to get the ACPI
mute state and reads the first byte from the returned object.

However, the returned ACPI object is owned by the caller and is never
freed after use, so each successful query leaks the _DSM result object.

The code also assumes that the returned object is a buffer with at least
one byte. A malformed firmware response can return a different object
type or an empty buffer, and the direct ret->buffer.pointer dereference
can then access an invalid pointer.

Use the typed _DSM helper, validate that the returned buffer contains at
least one byte, and free the ACPI object after reading it.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 447106e92a0c86c332d40710436f38f64c322cd6
Version < 7fea0c89ed39a13d9a31163a74f8c62de30a4ffc
Status affected
Version 447106e92a0c86c332d40710436f38f64c322cd6
Version < 08433c71f15984ddd5f5a307cf3f0aa9b84583aa
Status affected
Version 447106e92a0c86c332d40710436f38f64c322cd6
Version < d5dfdf43259ad9d054052012095b1630e7366dcf
Status affected
Version 447106e92a0c86c332d40710436f38f64c322cd6
Version < 3b597d24dc0455ae926f1053f97c2725038fc3cd
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.7
Status affected
Version 0
Version < 6.7
Status unaffected
Version <= 6.12.*
Version 6.12.101
Status unaffected
Version <= 6.18.*
Version 6.18.42
Status unaffected
Version <= 7.1.*
Version 7.1.6
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.112
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/7fea0c89ed39a13d9a31163a74f8c62de30a4ffc
https://git.kernel.org/stable/c/08433c71f15984ddd5f5a307cf3f0aa9b84583aa
https://git.kernel.org/stable/c/d5dfdf43259ad9d054052012095b1630e7366dcf
https://git.kernel.org/stable/c/3b597d24dc0455ae926f1053f97c2725038fc3cd