Security readout for executives and security teams
Plain-English summary
This is a Linux kernel use-after-free in the Qualcomm MSM DisplayPort driver cleanup path. A local user with some privileges could potentially trigger memory corruption when the DP controller is removed, risking system compromise or crash. The source bundle does not show active exploitation.
Executive priority
Treat as a high-priority kernel maintenance item, especially for fleets with Qualcomm MSM display hardware or local untrusted users. It is not marked as known exploited, so urgency should be driven by exposure and patch availability rather than emergency incident response.
Technical view
The DP component unbind path unregisters and cleans submodules after memory for those submodules may already have been freed during controller removal. The kernel fix reorders cleanup so resources are unregistered before being freed. The issue is tracked as CWE-416 with CVSS 7.8, local attack vector, low complexity, and low privileges required.
Likely exposure
Exposure is most relevant to Linux systems running affected kernels where the drm/msm/dp DisplayPort driver is present and reachable. The bundle lists Linux as affected and references fixes across stable kernel branches including 5.10.188, 5.15.121, 6.1.39, 6.3.13, and 6.4.4.
Exploitation context
CISA KEV is false in the bundle, and no cited source states active exploitation. The CVSS vector indicates local access with low privileges and no user interaction. Impact is high because kernel memory corruption can affect confidentiality, integrity, and availability.
Researcher notes
The evidence supports a cleanup-order use-after-free in drm/msm/dp unbind handling. Public details are limited to the resolved kernel change and stable commit references. Do not assume remote reachability or exploitation without additional vendor evidence.
Mitigation direction
- Update to a kernel containing the referenced stable fix for your branch.
- Check your Linux distribution advisory for packaged kernel availability and backports.
- Prioritize systems using Qualcomm MSM display hardware or the msm DP driver.
- Restrict local account access on exposed or multi-user systems until patched.
Validation and detection
- Inventory kernel versions and compare against vendor or distribution fixed builds.
- Confirm whether the drm/msm/dp driver is built, loaded, or relevant to the platform.
- Review distribution changelogs for the referenced upstream stable commits.
- Track regression testing for display, suspend, hotplug, and device removal paths 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.
CWE-416: 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-2023-53316 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H/I:H/A:H1.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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/c67a55f7cc8d767d624235bf1bcd0947e56abe0fCVE reference, Linux
- https://git.kernel.org/stable/c/3c3f3d35f5e05c468b048eb42a4f8c62c6655692CVE reference, Linux
- https://git.kernel.org/stable/c/4e9f1a2367aea7d61f6781213e25313cd983b0d7CVE reference, Linux
- https://git.kernel.org/stable/c/5c3278db06e332fdc14f3f297499fb88ded264d2CVE reference, Linux
- https://git.kernel.org/stable/c/ca47d0dc00968358c136a1847cfed550cedfd1b5CVE reference, Linux
- https://git.kernel.org/stable/c/fa0048a4b1fa7a50c8b0e514f5b428abdf69a6f8CVE 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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.