CVE-2026-68303: drm/vc4: hvs/v3d: Fix null dereference in unbind
Noroxi assessment
Priority: Monitor (action score 0/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
- Fixed version: Linux Linux 261f0a3f0ac03248284f5116d3258f89c9642215, 3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1, 3ed3d0b31500b11c8fd9ef96b7703edbccb32e2e; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Linux Linux 261f0a3f0ac03248284f5116d3258f89c9642215, 3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1, 3ed3d0b31500b11c8fd9ef96b7703edbccb32e2e; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
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.
- Published
- Aug 10, 2026
- Updated
- Oct 30, 2026
- EPSS
- 0.2% · 11th percentile
- CWE
- —
Report tools
Action score
0
Monitor
Low priority for now.
- CVSS
- 0 / 40 · —
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
Running WordPress? Scan your site free with WP Lens
Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
—
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
- 4.4affected
- c8b75bca92cbf064b9fa125fc74a85994452e935 and later · before 3ed3d0b31500b11c8fd9ef96b7703edbccb32e2eaffected · git
- c8b75bca92cbf064b9fa125fc74a85994452e935 and later · before 3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1affected · git
- c8b75bca92cbf064b9fa125fc74a85994452e935 and later · before 8f62aae059e06746a18a00af27179c3c0f17f4c7affected · git
- c8b75bca92cbf064b9fa125fc74a85994452e935 and later · before 708688ec31ac6b35103ba364dc300a09930079d4affected · git
- c8b75bca92cbf064b9fa125fc74a85994452e935 and later · before 261f0a3f0ac03248284f5116d3258f89c9642215affected · git
- c8b75bca92cbf064b9fa125fc74a85994452e935 and later · before 7dc3680b7ffe01add3e9299fde8471d2dd53a8aeaffected · git
- before 4.4not affected · semver
- 6.1.191 and later · up to and including 6.1.*not affected · semver
- 6.6.160 and later · up to and including 6.6.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | from 0 | — |
| Debian:12 | linux-6.12 | before 6.12.111-1~deb12u1 | 6.12.111-1~deb12u1 |
| Debian:13 | linux | before 6.12.111-1 | 6.12.111-1 |
| Debian:14 | linux | before 7.1.6-1 | 7.1.6-1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | before 4.12.14-122.336.1 | 4.12.14-122.336.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_89 | before 1-8.3.1 | 1-8.3.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-source | before 4.12.14-122.336.1 | 4.12.14-122.336.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-syms | before 4.12.14-122.336.1 | 4.12.14-122.336.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation40Plan
- CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment40Plan
- CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()40Plan
Published before and after this one in the same product
- ← EarlierCVE-2026-68300Aug 10, 2026 · sctp: auth: verify auth requirement when auth_chunk is NULL39Monitor
- ← EarlierCVE-2026-68301Aug 10, 2026 · net: hsr: fix memory leak on slave unregistration by removing synced VLANs0Monitor
- Later →CVE-2026-68304Aug 10, 2026 · wifi: brcmfmac: fix 802.1X-SHA256 call trace warning0Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 261f0a3f0ac03248284f5116d3258f89c9642215 | Vendor (CNA) |
| Linux Linux | 3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1 | Vendor (CNA) |
| Linux Linux | 3ed3d0b31500b11c8fd9ef96b7703edbccb32e2e | Vendor (CNA) |
| Linux Linux | 708688ec31ac6b35103ba364dc300a09930079d4 | Vendor (CNA) |
| Linux Linux | 7dc3680b7ffe01add3e9299fde8471d2dd53a8ae | Vendor (CNA) |
| Linux Linux | 8f62aae059e06746a18a00af27179c3c0f17f4c7 | Vendor (CNA) |
| azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 | Release Notes | Microsoft (MSRC) |
| azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 | Release Notes | Microsoft (MSRC) |
| azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 | 6.6.161.1-1 · Release Notes | Microsoft (MSRC) |
| debian:linux | 6.12.111-1 · Debian:13 | Package registry (OSV) |
| debian:linux-6.12 | 6.12.111-1~deb12u1 · Debian:12 | Package registry (OSV) |
| suse:kernel-default | 4.12.14-122.336.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | Package registry (OSV) |
| suse:kernel-source | 4.12.14-122.336.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS | Package registry (OSV) |
| suse:kernel-syms | 4.12.14-122.336.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP5_Update_89 | 1-8.3.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | Package 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.
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 researchersFinders, 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).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-26-0800 · Aug 11, 2026(Linux Kernel Güvenlik Bildirimi)
Technical details
No CVSS vector for this record, so attack conditions can't be derived.
Weakness class (CWE)
—
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
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (5 more)Show less
- git.kernel.org/stable/c/3be8dcc1a5854cf24cc332e0d6fc865c47ff49a1
- git.kernel.org/stable/c/3ed3d0b31500b11c8fd9ef96b7703edbccb32e2e
- git.kernel.org/stable/c/708688ec31ac6b35103ba364dc300a09930079d4
- git.kernel.org/stable/c/7dc3680b7ffe01add3e9299fde8471d2dd53a8ae
- git.kernel.org/stable/c/8f62aae059e06746a18a00af27179c3c0f17f4c7
Vendor advisories and official records. Exploit/PoC links are deliberately left out.