fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 1 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write The trailing byte path in altera_cvp_send_block() dereferences a u32 pointer even when only 1-3 bytes remain in the input buffer. If the buffer ends at a page or scatterlist boundary, this can read past the valid image data and fault. Copy the remaining bytes into a zero-initialized u32 before writing the final word so only valid bytes are read from the input buffer.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, 7.2.4, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 6 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
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89730
- 2026-10-03 Alias added: GHSA-f682-7h79-jmqf
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/447b3c893987a0106a65f04b62ec3271892e9d98
- https://git.kernel.org/stable/c/3b8938f5fbcf4a918785f9cb4b108782eb4ea717
- https://git.kernel.org/stable/c/2564ac3d3b8b47cd9692a5bf42d668ed7218b54e
- https://git.kernel.org/stable/c/8f3365ed2a5db2ac95ab70a6c47561db39d24537
- https://git.kernel.org/stable/c/b138bc665e21d4422382ab43aebdf0a2b7bb9cb3
- https://git.kernel.org/stable/c/827ec385458adeeda651de2b6f3537e386b1a8d9
- https://git.kernel.org/stable/c/4dc1051939e499c838229af035464a5fc7671198
- https://git.kernel.org/stable/c/9da70a43b5fea60d758137f7f0ccfe19356cb5bb
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- 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
Sources
- CVE-2026-89730 · CVE Program
- CVE-2026-89730 · NVD
- FIRST EPSS
- GHSA-f682-7h79-jmqf · GitHub Advisory Database · CC BY 4.0
- CVE-2026-89730 · Red Hat security data · CC BY 4.0
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