clk: qcom: clk-rcg2: Update logic to calculate D value for RCG
Priority LOW 24Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: clk: qcom: clk-rcg2: Update logic to calculate D value for RCG The display pixel clock has a requirement on certain newer platforms to support M/N as (2/3) and the final D value calculated results in underflow errors. As the current implementation does not check for D value is within the accepted range for a given M & N value. Update the logic to calculate the final D value based on the range.
Why it matters now
EPSS 0.00269 19th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.4.189, 5.10.110, 5.15.33 +3
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 | 3.16 and later | 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18 | Patch available | CNA |
- Linux VendorLinux Affected 3.16 and later Fixed in 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.16 to before 5.4.189; 5.5 to before 5.10.110; 5.11 to before 5.15.33; 5.16 to before 5.16.19; 5.17 to before 5.17.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.16 to before 5.4.189; 5.5 to before 5.10.110; 5.11 to before 5.15.33; 5.16 to before 5.16.19; 5.17 to before 5.17.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2, 5.18
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
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-2022-49189
- 2026-10-03 Alias added: GHSA-qrgc-x629-fgxg
References
Patch 6
- https://git.kernel.org/stable/c/52592f9afbfe01bce8f8953e4f19cbe3bcbdbd3a
- https://git.kernel.org/stable/c/334720f418f57b1d969dad2117b21f9388cb9395
- https://git.kernel.org/stable/c/34dca60982e93e69ae442aa2d36ce61c9a3bb563
- https://git.kernel.org/stable/c/96888f0dcf351e758b9df57e015a48427ca709c1
- https://git.kernel.org/stable/c/a4e2e31971354790b0d1fa3e783452a9d135fcff
- https://git.kernel.org/stable/c/58922910add18583d5273c2edcdb9fd7bf4eca02
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Sources
- CVE-2022-49189 · CVE Program
- CVE-2022-49189 · NVD
- FIRST EPSS
- GHSA-qrgc-x629-fgxg · GitHub Advisory Database · CC BY 4.0
- CVE-2022-49189 · Red Hat security data · CC BY 4.0
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