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Full vulnerability report · 2025
CVE-2023-53833High confidence

drm/i915: Fix NULL ptr deref by checking new_crtc_state

Linux · Linux

…UnscoredAssess manually
Recommended action
Needs assessment

No CVSS base score is available from the CNA, CISA ADP or NIST. Absence of a score is not evidence of low risk; review the vendor advisory, affected exposure and exploit evidence.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

9 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcp-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-hwe-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatency-hwe-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical record ↗Source updated 11 Sept 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2023-53833 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitykernel: drm/i915: Fix NULL ptr deref by checking new_crtc_state
70 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • bpftool as a component of Red Hat Enterprise Linux 8
  • kernel as a component of Red Hat Enterprise Linux 8
  • kernel-abi-stablelists as a component of Red Hat Enterprise Linux 8
  • kernel-abi-whitelists as a component of Red Hat Enterprise Linux 8
  • kernel-core as a component of Red Hat Enterprise Linux 8
  • kernel-cross-headers as a component of Red Hat Enterprise Linux 8
  • kernel-debug as a component of Red Hat Enterprise Linux 8
  • kernel-debug-core as a component of Red Hat Enterprise Linux 8
  • kernel-debug-devel as a component of Red Hat Enterprise Linux 8
  • kernel-debug-modules as a component of Red Hat Enterprise Linux 8
  • kernel-debug-modules-extra as a component of Red Hat Enterprise Linux 8
  • kernel-debug-modules-internal as a component of Red Hat Enterprise Linux 8
Summary
A NULL pointer dereference vulnerability was found in the Intel i915 graphics driver in the Linux kernel. The intel_atomic_get_new_crtc_state() function can return NULL if the CRTC state was not previously obtained via intel_atomic_get_crtc_state(), but the return value was not checked before use. This leads to a kernel crash when display mode changes are performed under certain conditions.
Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-60163

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionNeeds assessment

No CVSS base score is available from the CNA, CISA ADP or NIST. Absence of a score is not evidence of low risk; review the vendor advisory, affected exposure and exploit evidence.

Patch available
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix NULL ptr deref by checking new_crtc_state intel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't obtained previously with intel_atomic_get_crtc_state, so we must check it for NULLness here, just as in many other places, where we can't guarantee that intel_atomic_get_crtc_state was called. We are currently getting NULL ptr deref because of that, so this fix was confirmed to help. (cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)

What

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix NULL ptr deref by checking new_crtc_state intel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't obtained previously with intel_atomic_get_crtc_state, so we must check it for NULLness here, just as in many other places, where we can't guarantee that intel_atomic_get_crtc_state was called. We are currently getting NULL ptr deref because of that, so this fix was confirmed to help. (cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through the affected interface may attempt exploitation when the stated preconditions are met. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix NULL ptr deref by checking new_crtc_state intel_atomic_get_new_crtc_state can return NULL, unless crtc state wasn't obtained previously with intel_atomic_get_crtc_state, so we must check it for NULLness here, just as in many other places, where we can't guarantee that intel_atomic_get_crtc_state was called. We are currently getting NULL ptr deref because of that, so this fix was confirmed to help. (cherry picked from commit 1d5b09f8daf859247a1ea65b0d732a24d88980d8)

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through the affected interface may attempt exploitation when the stated preconditions are met. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
the affected interface → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Unspecified
Privileges required
Not stated in the selected CVSS metric
User interaction
Not stated in the selected CVSS metric
Attack complexity
Not stated in the selected CVSS metric
Security boundary
Not stated in the selected CVSS metric
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
Not available from the selected scoring authority.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2025-2765Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20251210Security Bulletin 10 Dec 2025

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 10 Dec 2025, published on 10 December 2025. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0226Multiples vulnérabilités dans le noyau Linux de Red Hat

d?id=CVE-2022-50865 Référence CVE CVE-2023-53192 https://www.cve.org/CVERecord?id=CVE-2023-53192 Référence CVE CVE-2023-53513 https://www.cve.org/CVERecord?id=CVE-2023-53513 Référence CVE CVE-2023-53539 https://www.cve.org/CVERecord?id=CVE-2023-53539 Référence CVE CVE-2023-53581 https://www.cve.org/CVERecord?id=CVE-2023-53581 Référence CVE CVE-2023-53673 https://www.cve.org/CVERecord?id=CVE-2023-53673 Référence CVE CVE-2023-53762 https://www.cve.org/CVERecord?id=CVE-2023-53762 Référence CVE CVE-2023-53821 https://www.cve.org/CVERecord?id=CVE-2023-53821 Référence CVE CVE-2023-53827 https://www.cve.org/CVERecord?id=CVE-2023-53827 Référence CVE CVE-2023-53833 https://www.cve.org/CVERecord?id=CVE-2023-53833 Référence CVE CVE-2025-37861 https://www.cve.org/CVERecord?id=CVE-2025-37861 Référence CVE CVE-2025-37882 https://www.cve.org/CVERecord?id=CVE-2025-37882 Référence CVE CVE-2025-38022 https://www.cve.org/CVERecord?id=CVE-2025-38022 Référence CVE CVE-2025-38106 https://www.cve.org/CVERecord?id=CVE-2025-38106 Référence CVE CVE-2025-38129 https://www.cve.org/CVERecord?id=CVE-2025-38129 Référence CVE CVE-2025-38206 https://www.cve.org/CVERecord?id=CVE-2025-38206 Référence CVE CVE-2025-38248 https://www.cve.org/CVERecord?id=CVE-2025-38248 Référence CVE CVE-2025-38415 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0168Multiples vulnérabilités dans le noyau Linux de Red Hat

d?id=CVE-2022-49503 Référence CVE CVE-2022-50341 https://www.cve.org/CVERecord?id=CVE-2022-50341 Référence CVE CVE-2022-50673 https://www.cve.org/CVERecord?id=CVE-2022-50673 Référence CVE CVE-2022-50865 https://www.cve.org/CVERecord?id=CVE-2022-50865 Référence CVE CVE-2023-53192 https://www.cve.org/CVERecord?id=CVE-2023-53192 Référence CVE CVE-2023-53539 https://www.cve.org/CVERecord?id=CVE-2023-53539 Référence CVE CVE-2023-53581 https://www.cve.org/CVERecord?id=CVE-2023-53581 Référence CVE CVE-2023-53673 https://www.cve.org/CVERecord?id=CVE-2023-53673 Référence CVE CVE-2023-53751 https://www.cve.org/CVERecord?id=CVE-2023-53751 Référence CVE CVE-2023-53833 https://www.cve.org/CVERecord?id=CVE-2023-53833 Référence CVE CVE-2024-54456 https://www.cve.org/CVERecord?id=CVE-2024-54456 Référence CVE CVE-2025-21647 https://www.cve.org/CVERecord?id=CVE-2025-21647 Référence CVE CVE-2025-21786 https://www.cve.org/CVERecord?id=CVE-2025-21786 Référence CVE CVE-2025-21791 https://www.cve.org/CVERecord?id=CVE-2025-21791 Référence CVE CVE-2025-37789 https://www.cve.org/CVERecord?id=CVE-2025-37789 Référence CVE CVE-2025-37819 https://www.cve.org/CVERecord?id=CVE-2025-37819 Référence CVE CVE-2025-38022 https://www.cve.org/CVERecord?id=CVE-2025-38022 Référence CVE CVE-2025-38024 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0108Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2023-53820 Référence CVE CVE-2023-53821 https://www.cve.org/CVERecord?id=CVE-2023-53821 Référence CVE CVE-2023-53823 https://www.cve.org/CVERecord?id=CVE-2023-53823 Référence CVE CVE-2023-53825 https://www.cve.org/CVERecord?id=CVE-2023-53825 Référence CVE CVE-2023-53827 https://www.cve.org/CVERecord?id=CVE-2023-53827 Référence CVE CVE-2023-53828 https://www.cve.org/CVERecord?id=CVE-2023-53828 Référence CVE CVE-2023-53830 https://www.cve.org/CVERecord?id=CVE-2023-53830 Référence CVE CVE-2023-53831 https://www.cve.org/CVERecord?id=CVE-2023-53831 Référence CVE CVE-2023-53832 https://www.cve.org/CVERecord?id=CVE-2023-53832 Référence CVE CVE-2023-53833 https://www.cve.org/CVERecord?id=CVE-2023-53833 Référence CVE CVE-2023-53834 https://www.cve.org/CVERecord?id=CVE-2023-53834 Référence CVE CVE-2023-53836 https://www.cve.org/CVERecord?id=CVE-2023-53836 Référence CVE CVE-2023-53837 https://www.cve.org/CVERecord?id=CVE-2023-53837 Référence CVE CVE-2023-53839 https://www.cve.org/CVERecord?id=CVE-2023-53839 Référence CVE CVE-2023-53840 https://www.cve.org/CVERecord?id=CVE-2023-53840 Référence CVE CVE-2023-53841 https://www.cve.org/CVERecord?id=CVE-2023-53841 Référence CVE CVE-2023-53842 https://www.cve.org/CVERecord?id=CVE-2023-53842 Référence CVE CVE-2023-53843 https://www.cve.org/CVERecord?id=

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Action
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 9 Dec 2025 · Last source change 11 May 2026, 19:52 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceUnavailable
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-60163
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceUnavailable
NVD statusNVD not scheduled

Missing structured fields: CVSS base score, CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2023-60163↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-53833 · cve.blacktree.nl