drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected
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
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected There is a possibility for mdp5_get_global_state to return -EDEADLK when acquiring the modeset lock, but currently global_state in mdp5_mixer_release doesn't check for if an error is returned. To avoid a NULL dereference error, let's have mdp5_mixer_release check if an error is returned and propagate that error. Patchwork: https://patchwork.freedesktop.org/patch/485181/
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.18 and later | 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19 | Patch available | CNA |
- Linux VendorLinux Affected 4.18 and later Fixed in 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.18 to before 4.19.247; 4.20 to before 5.4.198; 5.5 to before 5.10.121; 5.11 to before 5.15.46; 5.16 to before 5.17.14; 5.18 to before 5.18.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.18 to before 4.19.247; 4.20 to before 5.4.198; 5.5 to before 5.10.121; 5.11 to before 5.15.46; 5.16 to before 5.17.14; 5.18 to before 5.18.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14, 5.18.3, 5.19
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2022-49488
- 2026-10-03 Alias added: GHSA-q823-7v63-v327
References
Patch 7
- https://git.kernel.org/stable/c/1a5d1474026ea4f1a6f931075ca2adb884af39cf
- https://git.kernel.org/stable/c/22d8424913b1348c6324916745fadaeea5273f0e
- https://git.kernel.org/stable/c/883f1d52a57bf51e1d7a80c432345e2c6222477e
- https://git.kernel.org/stable/c/09bdeedc1fc53e64b8282e1de67752c69e43bdba
- https://git.kernel.org/stable/c/47e393061049aff6818d1b9fdca7351411a23fc2
- https://git.kernel.org/stable/c/46e5ce63924a96af452c4fc5ee0bb3b241e1b9f4
- https://git.kernel.org/stable/c/ca75f6f7c6f89365e40f10f641b15981b1f07c31
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Sources
- CVE-2022-49488 · CVE Program
- CVE-2022-49488 · NVD
- FIRST EPSS
- GHSA-q823-7v63-v327 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49488 · 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