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CVE-2025-38467· NVD / CVE Program· CNA Linux

drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling

In the Linux kernel, the following vulnerability has been resolved: drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling If there's support for another console device (such as a TTY serial), the kernel occasionally panics during boot. The panic message and a relevant snippet of the call stack is as follows: Unable to handle kernel NULL pointer dereference at virtual address 000000000000000 Call trace: drm_crtc_handle_vblank+0x10/0x30 (P) decon_irq_handler+0x88/0xb4 [...] Otherwise, the panics don't happen. This indicates that it's some sort of race condition. Add a check to validate if the drm device can handle vblanks before calling drm_crtc_handle_vblank() to avoid this.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jul 25, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 6th percentile
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Report tools

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Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

Noroxi analysis

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Affected systems

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel5.5 and later · before 5.10.240
  • linux linux kernel5.11 and later · before 5.15.189
  • linux linux kernel5.16 and later · before 6.1.146
  • linux linux kernel4.0 and later · before 5.4.296
  • linux linux kernel6.7 and later · before 6.12.39
  • linux linux kernel6.13 and later · before 6.15.7
  • linux linux kernel6.2 and later · before 6.6.99
  • linux linux kernel6.16

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.0affected
    • 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 and later · before b4e72c0bf878f02faa00a7dc7c9ffc4ff7c116a7affected · git
    • 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 and later · before a2130463fc9451005660b0eda7b61d5f746f7d74affected · git
    • 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 and later · before 87825fbd1e176cd5b896940f3959e7c9a916945daffected · git
    • 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 and later · before a40a35166f7e4f6dcd4b087d620c8228922dcb0aaffected · git
    • 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 and later · before 391e5ea5b877230b844c9bd8bbcd91b681b1ce2daffected · git
    • 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 and later · before e9d9b25f376737b81f06de9c5aa422b488f47184affected · git
    • 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 and later · before 996740652e620ef8ee1e5c65832cf2ffa498577daffected · git
    • 96976c3d9aff4e1387c30f6356ac01fa6f72ef46 and later · before b846350aa272de99bf6fecfa6b08e64ebfb13173affected · git
    • before 4.0not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.147-16.1.147-1
Debian:13linuxbefore 6.12.41-16.12.41-1
Debian:14linuxbefore 6.16.3-16.16.3-1

Same product

linux: all records

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  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now
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    77This week
  • CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
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Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux391e5ea5b877230b844c9bd8bbcd91b681b1ce2dVendor (CNA)
Linux Linux87825fbd1e176cd5b896940f3959e7c9a916945dVendor (CNA)
Linux Linux996740652e620ef8ee1e5c65832cf2ffa498577dVendor (CNA)
Linux Linuxa2130463fc9451005660b0eda7b61d5f746f7d74Vendor (CNA)
Linux Linuxa40a35166f7e4f6dcd4b087d620c8228922dcb0aVendor (CNA)
Linux Linuxb4e72c0bf878f02faa00a7dc7c9ffc4ff7c116a7Vendor (CNA)
Linux Linuxb846350aa272de99bf6fecfa6b08e64ebfb13173Vendor (CNA)
Linux Linuxe9d9b25f376737b81f06de9c5aa422b488f47184Vendor (CNA)
azl3 kernel 6.6.96.2-2 on Azure Linux 3.06.6.104.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.147-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records