CVE-2024-32919
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIn lwis_add_completion_fence of lwis_fence.c, there is a possible escalation of privilege due to type confusion. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA type confusion vulnerability exists in the lwis_add_completion_fence function in lwis_fence.c (Linux kernel). The bug allows a local attacker to escalate privileges to root by exploiting improper type handling in the fence mechanism, which is used for synchronization in the kernel's low-level work item scheduler. No user interaction is required.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify if the system is running Google AndroidRun 'uname -a' or check /proc/version to examine the kernel string. Android kernels typically contain 'Android' or 'aarch64' in the version info.Affected if The system is running a Google Android kernel (any version)
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Determine if the lwis component is present in the kernelCheck for the presence of 'lwis' in the kernel configuration at /boot/config-* or by searching kernel build files for references to 'lwis_fence.c' or 'lwis_add_completion_fence'.Affected if The kernel includes the lwis (Low-Level Work Item Scheduler) component
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Verify the lwis fence mechanism is enabledExamine kernel configuration options for LWIS-related settings, or check if the lwis module is loaded via 'lsmod | grep lwis' or is built into the kernel image.Affected if The lwis fence synchronization mechanism is compiled into or loaded by the kernel
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Check for the vulnerable function symbolUse 'nm vmlinux' or extract the kernel image and search for the symbol 'lwis_add_completion_fence' to confirm the function exists in the running kernel.Affected if The symbol lwis_add_completion_fence is present in the kernel
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Confirm kernel patch statusReview the Android kernel source or vendor security bulletin to determine if the specific patch for CVE-2024-32919 (type confusion fix in lwis_add_completion_fence) has been applied.Affected if The vendor patch for CVE-2024-32919 has not been applied to the kernel
If the system is Google Android with an unpatched kernel containing the lwis component with the lwis_add_completion_fence function, the environment is affected by this privilege escalation vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply the vendor-provided kernel patch that corrects the type handling in lwis_add_completion_fence to prevent the type confusion condition leading to privilege escalation.
- Consultation4.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,080.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-32919 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-32919 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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