CVE-2026-68303: drm/vc4: hvs/v3d: Fix null dereference in unbind

Received
AliasesUBUNTU-CVE-2026-68303DEBIAN-CVE-2026-68303
Published 10-08-2026Last modified 30-10-2026

Vulnerability summary

CVE-2026-68303 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.4% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 18 · Related 18
OPENSUSE-SU-2026:21910-1SUSE-SU-2026:23477-1SUSE-SU-2026:23481-1SUSE-SU-2026:23528-1SUSE-SU-2026:23529-1SUSE-SU-2026:23881-1

Timeline

  1. 10-08-2026
    PublishedVulnerability first disclosed.
  2. 30-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: hvs/v3d: Fix null dereference in unbind The hvs and v3d drivers use dev_get_drvdata(master) in their unbind functions. Since the vc4-drm gets removed before its dependent drivers (vc4_hvs/vc4_v3d) the vc4_hvs_unbind/vc4_v3d_unbind functions try to get drvdata of its master and fails with a null dereference error. Use the data pointer passed to the unbind functions directly instead of dev_get_drvdata(master). This avoids using potentially freed memory.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

11%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 7.0.0-38.38
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 7.0.0-1014.14
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.12.111-1 | < 7.1.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ c8b75bca92cbf064b9fa125fc74a85994452e935, < 3ed3d0b31500b11c8fd9ef96b7703edbccb32e2e | ≥ c8b75bca92cbf064b9fa125fc74a85994452e935, < 3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1 | ≥ c8b75bca92cbf064b9fa125fc74a85994452e935, < 8f62aae059e06746a18a00af27179c3c0f17f4c7 | ≥ c8b75bca92cbf064b9fa125fc74a85994452e935, < 708688ec31ac6b35103ba364dc300a09930079d4 | ≥ c8b75bca92cbf064b9fa125fc74a85994452e935, < 261f0a3f0ac03248284f5116d3258f89c9642215 | ≥ c8b75bca92cbf064b9fa125fc74a85994452e935, < 7dc3680b7ffe01add3e9299fde8471d2dd53a8ae | 4.4

3 vendors · 172 products

References

15 links
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