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CVE Record

CVE-2023-54084: ALSA: firewire-digi00x: prevent potential use after free

In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-digi00x: prevent potential use after free This code was supposed to return an error code if init_stream() failed, but it instead freed dg00x->rx_stream and returned success. This potentially leads to a use after free.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue can leave a freed audio driver stream object marked as successfully initialized. If later code uses that object, the kernel could hit a use-after-free condition. The affected area is the ALSA firewire-digi00x driver, so exposure appears tied to systems using that driver or related kernel builds.

Executive priority

Schedule normal kernel patch management unless affected specialist audio workstations are identified. Escalate only if vendor guidance later reports exploitation, higher severity, or broader affected configurations.

Technical view

In ALSA firewire-digi00x, an init_stream() failure path freed dg00x->rx_stream but returned success instead of an error. That inconsistent state can permit later use of freed memory. The CVE references Linux stable commits as the resolution, but provides no CVSS score, CWE, or exploit details.

Likely exposure

Likely limited to Linux systems with affected kernel versions or vendor kernels carrying the vulnerable firewire-digi00x code. Internet exposure is not indicated. Confirm impact through kernel vendor advisories because distribution backports may differ from upstream version numbers.

Exploitation context

The provided sources do not show CISA KEV listing, active exploitation, public exploit code, or a practical attack path. Treat this as a kernel memory-safety bug requiring patch validation, not as confirmed exploited-in-the-wild activity.

Researcher notes

The key behavior is an erroneous success return after freeing rx_stream on an init_stream() failure path. The record lacks CVSS, CWE, trigger prerequisites, and exploitability analysis, so conclusions about privilege impact or practical reach would be speculative.

Mitigation direction

  • Apply vendor kernel updates that include the referenced upstream stable fixes.
  • Check distribution advisories before relying on raw upstream version numbers.
  • Prioritize systems using ALSA FireWire Digi 00x audio support.
  • Limit use of affected driver functionality until patched, following vendor guidance.

Validation and detection

  • Inventory Linux kernel versions and vendor package build identifiers.
  • Confirm whether firewire-digi00x support is present or loaded on relevant systems.
  • Verify patched kernels include one of the referenced stable commits or equivalent backport.
  • Document exceptions where vendor status remains unclear.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2023-54084 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
0ADP providers
7Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux9a08067ec318cbeaf0caa2d104cf677e723e02a3, 9a08067ec318cbeaf0caa2d104cf677e723e02a3, 9a08067ec318cbeaf0caa2d104cf677e723e02a3, 9a08067ec318cbeaf0caa2d104cf677e723e02a3, 9a08067ec318cbeaf0caa2d104cf677e723e02a3, 9a08067ec318cbeaf0caa2d104cf677e723e02a3unaffected
LinuxLinux5.4, 0, 5.4.244, 5.10.181, 5.15.113, 6.1.30, 6.3.4, 6.4affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.