LiveActive security incident?Get immediate response
CVE Record

CVE-2022-48749: drm/msm/dpu: invalid parameter check in dpu_setup_dspp_pcc

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: invalid parameter check in dpu_setup_dspp_pcc The function performs a check on the "ctx" input parameter, however, it is used before the check. Initialize the "base" variable after the sanity check to avoid a possible NULL pointer dereference. Addresses-Coverity-ID: 1493866 ("Null pointer dereference")

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel bug in the Qualcomm msm display driver path. A bad null check could let the kernel dereference a missing context pointer, potentially causing a crash. The source bundle does not provide CVSS, confirmed impact, or active exploitation evidence.

Executive priority

Handle through normal kernel patch management unless affected Qualcomm msm display systems are business-critical or difficult to recover. There is a credible stability risk, but the available sources do not support emergency prioritization.

Technical view

The issue is in drm/msm/dpu, function dpu_setup_dspp_pcc. The code initializes or uses a base value derived from ctx before validating ctx, creating a possible NULL pointer dereference. Stable kernel commits move initialization after the sanity check.

Likely exposure

Exposure appears limited to Linux kernels with the affected drm/msm/dpu code, especially systems using Qualcomm msm DPU display components. The bundle lists affected Linux versions including 5.8, 5.10.96, 5.15.19, 5.16.5, and 5.17, but does not define downstream distribution status.

Exploitation context

The bundle provides no evidence of active exploitation, and kev is false. It also does not state whether the vulnerable path is reachable remotely, locally, or only through specific display-driver operations. Treat exploitation context as unconfirmed.

Researcher notes

Focus validation on reachability of dpu_setup_dspp_pcc in affected kernels and whether downstream kernels carried the fix. Do not infer privilege requirements, remote exposure, or exploitability from the null dereference description alone.

Mitigation direction

  • Upgrade to a kernel containing the referenced stable fixes.
  • Check your distribution or device vendor guidance for backported fixes.
  • Prioritize systems using Qualcomm msm or DPU display hardware paths.
  • Track downstream kernel advisory status before assuming version numbers alone are decisive.

Validation and detection

  • Inventory Linux kernel versions across affected device classes.
  • Identify systems using the drm/msm DPU display driver path.
  • Confirm whether vendor kernels include one of the referenced fixes.
  • Verify CISA KEV status remains negative before changing exploitation assumptions.
Prepared
Confidence
medium
Sources
6

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

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 · low confidence lookup

CVE-2022-48749 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
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
2ADP providers
5Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

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.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux4259ff7ae509ed880b3a7bb685972c3a3bf4b74b, 4259ff7ae509ed880b3a7bb685972c3a3bf4b74b, 4259ff7ae509ed880b3a7bb685972c3a3bf4b74b, 4259ff7ae509ed880b3a7bb685972c3a3bf4b74bunaffected
LinuxLinux5.8, 0, 5.10.96, 5.15.19, 5.16.5, 5.17affected
Weakness

CWE details

No CWE listed

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