Security readout for executives and security teams
Plain-English summary
This Linux kernel flaw can let a local, authenticated user crash systems using the AMDGPU driver. It is an availability issue, not a data theft or privilege escalation issue based on the supplied sources. Business urgency is highest for Linux workstations, GPU servers, or virtual desktop hosts where a local crash would disrupt operations.
Executive priority
Treat as a moderate operational-risk patch. It should not displace actively exploited remote vulnerabilities, but it deserves timely remediation on shared Linux systems or GPU-dependent services where a local crash could interrupt business operations.
Technical view
The AMDGPU command submission path could clean up a scheduler job twice after userptr invalidation aborts submission. Because job cleanup had already moved into amdgpu_job_free, the redundant cleanup can trigger a NULL pointer dereference. The CVSS vector is local, low complexity, low privileges, no user interaction, with high availability impact.
Likely exposure
Exposure is likely limited to Linux systems running affected kernel builds with the AMDGPU driver in use. The source metadata names Linux kernel versions and stable commits, but the affected-version formatting is incomplete, so confirm exact exposure through your distribution's kernel advisories and package versions.
Exploitation context
The supplied sources do not show CISA KEV listing or active exploitation. The CVSS vector requires local access with low privileges. The practical attacker outcome described by the sources is denial of service through a kernel crash condition, not remote compromise or data exposure.
Researcher notes
Key evidence is the kernel resolution text: aborted amdgpu_cs_submit after userptr invalidation could hit redundant scheduler job cleanup and NULL dereference. The bundle provides fix commit references but no exploit evidence, no KEV signal, and incomplete branch mapping for affected versions.
Mitigation direction
- Update to a Linux kernel or vendor package containing the referenced stable fixes.
- Check your Linux distribution advisory for exact fixed package versions.
- Prioritize GPU workstations, shared Linux hosts, and AMDGPU-backed compute systems.
- Restrict local shell access on affected shared systems until patched.
Validation and detection
- Inventory Linux hosts running AMDGPU-capable kernels and drivers.
- Compare installed kernel packages against vendor advisories and stable fix commits.
- Confirm whether untrusted local users can access affected GPU systems.
- Track remediation separately for each distribution kernel branch.
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.
CWE-476: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-53228 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/cdce1644d85e858c68fb5fa67d78eb1035bf34f4CVE reference, Linux
- https://git.kernel.org/stable/c/c1564d4b105ae535eb3183ecaaa987685b20a888CVE reference, Linux
- https://git.kernel.org/stable/c/ec02a29c3c2ef8ad3e15a0e3f96b99a00e5d97b4CVE reference, Linux
- https://git.kernel.org/stable/c/1253685f0d3eb3eab0bfc4bf15ab341a5f3da0c8CVE 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.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.