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CVE-2024-38592 high CVSS 7.8

Vulnerability in Linux kernel (CVE-2024-38592)

Summary

Vulnerability in Linux kernel (CVE-2024-38592). Successful exploitation can lead to full system takeover. Exploitable via ddp_comp.

Original description

The description as published by the source.

In the Linux kernel, the following vulnerability has been resolved:

drm/mediatek: Init ddp_comp with devm_kcalloc()

In the case where conn_routes is true we allocate an extra slot in
the ddp_comp array but mtk_drm_crtc_create() never seemed to
initialize it in the test case I ran. For me, this caused a later
crash when we looped through the array in mtk_drm_crtc_mode_valid().
This showed up for me when I booted with slub_debug=FZPUA which
poisons the memory initially. Without slub_debug I couldn't
reproduce, presumably because the later code handles the value being
NULL and in most cases (not guaranteed in all cases) the memory the
allocator returned started out as 0.

It really doesn't hurt to initialize the array with devm_kcalloc()
since the array is small and the overhead of initting a handful of
elements to 0 is small. In general initting memory to zero is a safer
practice and usually it's suggested to only use the non-initting alloc
functions if you really need to.

Let's switch the function to use an allocation function that zeros the
memory. For me, this avoids the crash.

Source: NIST National Vulnerability Database NVD

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2024-38592 has been found in Linux kernel.
Attackers can target a specific entry point like ddp_comp over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Linux kernel CVE-2024-38592" on the vendor's site.

CVE-2024-38592 (Linux kernel) — CWE-908 / CVSS v3 7.8
Attack vector: local / no user interaction
Attack surface: ddp_comp / conn_routes / slub_debug
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-908) exists in Linux kernel. Attackers reach the vulnerable code path via ddp_comp.

📍 Affected scope

Check the vendor advisory for the affected versions of Linux kernel. Attack surface: ddp_comp / conn_routes / slub_debug.

🔥 Severity

Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで Linux kernel を使っているサービスとバージョンを洗い出す。

  2. 2
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Linux Kernel
[{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.8.12"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.9.0"},{"fixed":"6.9.3"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

References

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