CVE-2023-52806
ALSA: hda: Fix possible null-ptr-deref when assigning a stream
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Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix possible null-ptr-deref when assigning a stream While AudioDSP drivers assign streams exclusively of HOST or LINK type, nothing blocks a user to attempt to assign a COUPLED stream. As supplied substream instance may be a stub, what is the case when code-loading, such scenario ends with null-ptr-deref.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/2527775616f3638f4fd54649eba8c7b84d5e4250
- https://git.kernel.org/stable/c/25354bae4fc310c3928e8a42fda2d486f67745d7
- https://git.kernel.org/stable/c/43b91df291c8802268ab3cfd8fccfdf135800ed4
- https://git.kernel.org/stable/c/4a320da7f7cbdab2098b103c47f45d5061f42edd
- https://git.kernel.org/stable/c/631a96e9eb4228ff75fce7e72d133ca81194797e
References (9)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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