Kernel crash via unchecked CRTC state
Published Dec 9, 2025 · Updated May 11, 2026
A NULL pointer dereference in Linux kernel drm/i915 allows attackers to crash the kernel during atomic display state handling. intel_atomic_get_new_crtc_state can return NULL when no CRTC state was previously obtained, but intel_plane_atomic_calc_changes dereferences the result without checking it. Published material does not identify an attacker-controlled trigger, required privilege level, or Intel graphics configuration needed to reach the faulty path.
Summary
What happened
A NULL pointer dereference in Linux kernel drm/i915 allows attackers to crash the kernel during atomic display state handling. intel_atomic_get_new_crtc_state can return NULL when no CRTC state was previously obtained, but intel_plane_atomic_calc_changes dereferences the result without checking it. Published material does not identify an attacker-controlled trigger, required privilege level, or Intel graphics configuration needed to reach the faulty path.
The record
- CVE
- CVE-2023-53833
- Published
- Dec 9, 2025
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Dec 9, 2025CVE 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=5.16
- Affected versionversion=74a75dc908692dd0548209004e53832c02433c0c <8b3c0d2d1685ba40b0af4ee1f8d8824a73870f88
- Affected versionversion=74a75dc908692dd0548209004e53832c02433c0c <a41d985902c153c31c616fe183cf2ee331e95ecb
- Affected versionversion=74a75dc908692dd0548209004e53832c02433c0c <dbf25cc21beff4fd2e730573845a266504b21bb2
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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