Local denial of service via framebuffer cleanup omission
Published Sep 4, 2024 · Updated May 11, 2026
Incomplete cleanup in affected Linux kernel DRM/MSM DPU builds allows local users to disrupt system availability during DRM file closure. In dpu_plane_prepare_fb(), a dpu_format_populate_layout() failure returns after framebuffer preparation without calling msm_framebuffer_cleanup(), leaving the GEM object's pin_count elevated. An unprivileged local user must reach the MSM DPU framebuffer path and trigger layout failure; closing the DRM file then produces a kernel warning and availability loss.
Summary
What happened
Incomplete cleanup in affected Linux kernel DRM/MSM DPU builds allows local users to disrupt system availability during DRM file closure. In dpu_plane_prepare_fb(), a dpu_format_populate_layout() failure returns after framebuffer preparation without calling msm_framebuffer_cleanup(), leaving the GEM object's pin_count elevated. An unprivileged local user must reach the MSM DPU framebuffer path and trigger layout failure; closing the DRM file then produces a kernel warning and availability loss.
The record
- CVE
- CVE-2024-44982
- Published
- Sep 4, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-459, T1499
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 4, 2024CVE publishedPublication date reported by the CVE source.
- May 11, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef <02193c70723118889281f75b88722b26b58bf4ae
- Affected versionversion=25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef <7ecf85542169012765e4c2817cd3be6c2e009962
- Affected versionversion=25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef <9b8b65211a880af8fe8330a101e1e239a2d4008f
- Affected versionversion=25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef <a3c5815b07f4ee19d0b7e2ddf91ff9f03ecbf27d
- Affected versionversion=25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef <bfa1a6283be390947d3649c482e5167186a37016
- Affected versionversion=4.19
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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