Security readout for executives and security teams
Plain-English summary
CVE-2022-49529 is a Linux kernel AMDGPU driver bug that can crash a system. It is not described as remote code execution or data theft. The business impact is availability: affected Linux systems using AMDGPU may suffer a kernel panic if a local user triggers the faulty driver path.
Executive priority
Treat as a targeted availability risk, not a broad internet-facing emergency. Patch during the next appropriate maintenance cycle, faster for shared workstations, GPU compute hosts, or multi-user Linux environments where local users could trigger a crash.
Technical view
The issue is a CWE-476 NULL pointer dereference in drm/amdgpu power management. When software SMU is disabled, pp_funcs may be uninitialized during context release, leading to a kernel panic in amdgpu_dpm_force_performance_level. CVSS is 5.5: local attack vector, low privileges, no user interaction, high availability impact.
Likely exposure
Exposure is most relevant to Linux systems running affected kernel versions with the AMDGPU driver in use. The source metadata identifies Linux kernel 5.18-related affected entries and stable fixes. Systems without AMDGPU usage are less likely to be exposed, but validate against distribution kernel advisories.
Exploitation context
The CVSS vector indicates local, low-privilege exploitation with no user interaction. The provided sources do not show CISA KEV listing or active exploitation. The observed outcome is a kernel NULL pointer panic, causing denial of service rather than confidentiality or integrity loss.
Researcher notes
Evidence is limited to the CVE record and Linux stable commit references. The root cause and crash path are clear, but the source bundle does not provide a full affected-version matrix across distributions. Avoid assuming exploit availability or distro-specific fixes without vendor confirmation.
Mitigation direction
- Check Linux distribution advisories for CVE-2022-49529 coverage.
- Update to a kernel build containing the referenced stable fixes.
- Prioritize systems using AMDGPU graphics or compute workloads.
- If patching is delayed, restrict untrusted local user access where feasible.
Validation and detection
- Inventory Linux hosts with AMDGPU hardware or loaded amdgpu driver.
- Record kernel versions and distribution backport status.
- Compare installed kernels against vendor advisories and referenced stable commits.
- Review crash logs for amdgpu NULL pointer panics in the cited functions.
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-2022-49529 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/49ec3441aa5e5940f3e82dd2f0205b9c856e399dCVE reference, Linux
- https://git.kernel.org/stable/c/eea5c7b3390c6e006ba4cbd906447dd8cea8cfbfCVE 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.