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CVE Record

CVE-2022-50292: drm/msm/dp: fix bridge lifetime

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dp: fix bridge lifetime Device-managed resources allocated post component bind must be tied to the lifetime of the aggregate DRM device or they will not necessarily be released when binding of the aggregate device is deferred. This can lead resource leaks or failure to bind the aggregate device when binding is later retried and a second attempt to allocate the resources is made. For the DP bridges, previously allocated bridges will leak on probe deferral. Fix this by amending the DP parser interface and tying the lifetime of the bridge device to the DRM device rather than DP platform device. Patchwork: https://patchwork.freedesktop.org/patch/502667/

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 affects Qualcomm MSM DisplayPort bridge handling. Under probe deferral, previously allocated bridge resources can leak and later prevent the combined DRM display device from binding. The source describes reliability and resource-management impact, not data theft or remote compromise.

Executive priority

Treat this as a targeted kernel maintenance item, not an emergency, unless affected devices show display or DRM initialization failures. Current evidence does not support active exploitation or broad business compromise.

Technical view

The drm/msm/dp code tied post-bind device-managed bridge resources to the DP platform device rather than the aggregate DRM device. If aggregate binding was deferred, DP bridges could leak; a retry could fail when allocating the same resources again. The fix changes the DP parser interface and bridge lifetime ownership.

Likely exposure

Exposure appears limited to Linux systems using affected kernel versions with the MSM DRM DisplayPort path, typically Qualcomm-based platforms. The bundle lists affected Linux versions including 5.19, 6.0.7, and 6.1, but product and distribution mappings are not provided.

Exploitation context

No CISA KEV listing, exploit report, CVSS score, attack vector, or exploitability detail is provided in the source bundle. The described failure mode is probe deferral causing resource leaks or DRM aggregate device bind failure.

Researcher notes

Evidence is narrow: no CVSS, CWE, exploitability assessment, or distribution-specific status is included. The primary research focus is confirming affected kernel ranges, whether the msm DP driver is enabled, and whether stable fixes are backported.

Mitigation direction

  • Update to a vendor kernel containing the referenced stable fixes.
  • Check Linux distribution advisories for backported fixes to supported kernels.
  • Prioritize affected Qualcomm MSM DisplayPort systems with display initialization failures.
  • Avoid inventing workarounds; follow kernel or distribution guidance.

Validation and detection

  • Inventory deployed kernel versions and Qualcomm MSM DisplayPort usage.
  • Check kernel package changelogs for the referenced stable commit IDs.
  • Review boot logs for DRM/MSM DP probe deferral or bind failures.
  • Confirm vendor advisories map your kernel build to a fixed release.
Prepared
Confidence
medium
Sources
4

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-2022-50292 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
3Source 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

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxc3bf8e21b38a89418f2e22173b229aaad2306815, c3bf8e21b38a89418f2e22173b229aaad2306815unaffected
LinuxLinux5.19, 0, 6.0.7, 6.1affected
Weakness

CWE details

No CWE listed

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