Security readout for executives and security teams
Plain-English summary
This Linux kernel issue is a resource leak in Samsung Aries audio driver probing. The main business risk is local denial of service, not data theft. It matters most for systems running affected kernel versions with this driver path present. No provided source shows active exploitation.
Executive priority
Treat as a moderate availability risk. Patch through the normal kernel maintenance cycle, faster for devices using the affected Samsung audio driver. It does not currently justify emergency response based on the provided evidence.
Technical view
aries_audio_probe calls of_parse_phandle(), which increments a device-tree node reference. If extcon_find_edev_by_node() fails, the reference was not released with of_node_put(), creating a refcount leak. CVSS 3.1 is 5.5 with local access, low complexity, low privileges, no user interaction, and high availability impact.
Likely exposure
Exposure is most likely on Linux systems using affected kernels in the recorded ranges and Samsung Aries ASoC audio support. General servers without this driver path are less likely exposed, but kernel package provenance should be checked.
Exploitation context
The provided data marks this as not in KEV and includes no cited evidence of active exploitation. The CVSS vector indicates local, low-privileged exploitation with availability impact only. Evidence is insufficient to claim remote risk or data compromise.
Researcher notes
The issue is a missing reference release after of_parse_phandle() in aries_audio_probe. The fix is the addition of of_node_put() after extcon_find_edev_by_node(). Confirm exposure by source/config review, not by assuming all Linux hosts are affected.
Mitigation direction
- Update affected Linux kernels to vendor-supported fixed builds.
- Confirm distro packages include one of the referenced stable fixes.
- Prioritize systems where Samsung Aries ASoC audio support is enabled.
- Follow Linux distribution or device vendor guidance for backported fixes.
- Do not deploy direct kernel changes without normal regression testing.
Validation and detection
- Inventory running kernel versions across Linux assets.
- Map kernel packages against the affected version records.
- Check whether the referenced stable commits are present or backported.
- Review kernel configuration for Samsung Aries ASoC audio support.
- Run normal service availability regression tests after patching.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2022-49477 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/cacea459f95be22b3750f3b25b7a1c5897a68206CVE reference, Linux
- https://git.kernel.org/stable/c/85d899f396622d3034643bf89615a78f9be7c91aCVE reference, Linux
- https://git.kernel.org/stable/c/70130bde3457d28c02c76b6cacc5d40a72dd6e17CVE reference, Linux
- https://git.kernel.org/stable/c/46d1b310a2d571811c4e08041ce287babb60b86aCVE reference, Linux
- https://git.kernel.org/stable/c/bf4a9b2467b775717d0e9034ad916888e19713a3CVE reference, Linux
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.