drm/radeon: delete radeon_fence_process in is_signaled, no deadlock
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 5 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: delete radeon_fence_process in is_signaled, no deadlock Delete the attempt to progress the queue when checking if fence is signaled. This avoids deadlock. dma-fence_ops::signaled can be called with the fence lock in unknown state. For radeon, the fence lock is also the wait queue lock. This can cause a self deadlock when signaled() tries to make forward progress on the wait queue. But advancing the queue is unneeded because incorrectly returning false from signaled() is perfectly acceptable. (cherry picked from commit 527ba26e50ec2ca2be9c7c82f3ad42998a75d0db)
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.18 and later | 6.1.162, 6.6.123, 6.12.60, 6.17.10, 6.18 | Patch available | CNA |
- Linux VendorLinux Affected 3.18 and later Fixed in 6.1.162, 6.6.123, 6.12.60, 6.17.10, 6.18 Patch available CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.18 to before 6.1.162; 6.2 to before 6.6.123; 6.7 to before 6.12.60; 6.13 to before 6.17.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.18:rc1:*:*:*:*:*:* | 6.18 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.18:rc2:*:*:*:*:*:* | 6.18 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.18:rc3:*:*:*:*:*:* | 6.18 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.18:rc4:*:*:*:*:*:* | 6.18 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.18:rc5:*:*:*:*:*:* | 6.18 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.18:rc6:*:*:*:*:*:* | 6.18 rc6 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.18 to before 6.1.162; 6.2 to before 6.6.123; 6.7 to before 6.12.60; 6.13 to before 6.17.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.18:rc1:*:*:*:*:*:* Versions 6.18 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.18:rc2:*:*:*:*:*:* Versions 6.18 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.18:rc3:*:*:*:*:*:* Versions 6.18 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.18:rc4:*:*:*:*:*:* Versions 6.18 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.18:rc5:*:*:*:*:*:* Versions 6.18 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.18:rc6:*:*:*:*:*:* Versions 6.18 rc6 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.162, 6.6.123, 6.12.60, 6.17.10, 6.18
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68223
- 2026-10-03 Alias added: GHSA-qv7h-6r58-hcx8
- 2026-11-05 CISA SSVC decision points changed
References
Patch 5
- https://git.kernel.org/stable/c/d40a72d7e3bad4dfb311ef078f5a57362f088c7f
- https://git.kernel.org/stable/c/9d0ed508a9e2af82951ce7d834f58c139fc2bd9b
- https://git.kernel.org/stable/c/73bc12d6a547f9571ce4393acfd73c004e2df9e5
- https://git.kernel.org/stable/c/7e3e9b3a44c23c8eac86a41308c05077d6d30f41
- https://git.kernel.org/stable/c/9eb00b5f5697bd56baa3222c7a1426fa15bacfb5
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2025-68223 · CVE Program
- CVE-2025-68223 · NVD
- FIRST EPSS
- GHSA-qv7h-6r58-hcx8 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-68223 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences