CVE-2024-44098
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_device_event_states_clear_locked of lwis_event.c, there is a possible privilege escalation due to a double free. 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 · moderate confidenceA double-free vulnerability exists in the lwis_device_event_states_clear_locked function in lwis_event.c within the Linux kernel's Light Weight Imaging Subsystem (LWIS). This memory corruption flaw allows a local attacker to escalate privileges to root without requiring additional execution privileges or user interaction.
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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:H/PR:N/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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Confirm Android platformCheck if the system is running Android by examining /proc/version, /system/build.prop, or running 'getprop ro.build.id'Affected if System is not running Google Android OS - this CVE is specific to Android kernel implementations
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Identify LWIS kernel module presenceCheck for lwis kernel module via 'lsmod | grep lwis' or examine kernel config at /proc/config.gz for CONFIG_LWIS option, or check /sys/module/ for lwis moduleAffected if LWIS module is not loaded or compiled into the kernel - the vulnerability only exists in systems with LWIS support
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Locate LWIS device nodesSearch for LWIS device entries using 'ls -la /dev/lwis*' or check /dev/ for any imaging subsystem device nodes created by the LWIS driverAffected if No LWIS device nodes exist - the double-free occurs during event state management operations on these devices
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Verify vulnerable function exists in kernelExamine the kernel image or source for lwis_device_event_states_clear_locked function in lwis_event.c - check if the function contains the event state clearing logic without proper reference countingAffected if The vulnerable function exists and handles event state clearing without proper NULL/check logic after freeing
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Check for accessible LWIS device permissionsReview permissions on /dev/lwis* nodes using 'ls -la /dev/lwis*' - determine if local untrusted users have read/write accessAffected if Local untrusted users can access LWIS device nodes - exploitation requires access to these devices
If running Google Android with the LWIS kernel subsystem present and accessible device nodes, the environment is likely affected by this double-free vulnerability in lwis_device_event_states_clear_locked.
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 upstream kernel patch for CVE-2024-44098 which addresses the double-free in the LWIS event state management. Until patch availability, restrict local untrusted user access to LWIS device nodes.
- Consultation3.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-44098 — 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-2024-44098 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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- Version or environment caveats, and links to real fixes
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