fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write
Published Sep 11, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.22%
Description
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.
Affected products
-
Affected
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
-
Affected
- 4.14
Unaffected
- ≥ 0, < 4.14
- ≥ 5.10.270, ≤ 5.10.*
- ≥ 5.15.221, ≤ 5.15.*
- ≥ 6.1.188, ≤ 6.1.*
- ≥ 6.12.109, ≤ 6.12.*
- ≥ 6.18.50, ≤ 6.18.*
- ≥ 6.6.157, ≤ 6.6.*
- ≥ 7.2.4, ≤ 7.2.*
- 7.3-rc1
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Linux | Linux | unaffected | Affected
|
| Linux | Linux | affected | Affected
Unaffected
|
No data.
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 10
kernel-rt
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
Red Hat OpenShift Container Platform 4
openshift/ose-rhel-coreos-8
Not affected
Red Hat OpenShift Container Platform 4
openshift/ose-rhel-coreos-9
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 10 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-8 | Not affected | n/a |
| Red Hat OpenShift Container Platform 4 | openshift/ose-rhel-coreos-9 | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (14)
- https://access.redhat.com/security/cve/CVE-2026-89730 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2532368 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-76642 Advisory
- https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89730.mbox
- https://git.kernel.org/stable/c/2564ac3d3b8b47cd9692a5bf42d668ed7218b54e
- https://git.kernel.org/stable/c/3b8938f5fbcf4a918785f9cb4b108782eb4ea717
- https://git.kernel.org/stable/c/447b3c893987a0106a65f04b62ec3271892e9d98
- https://git.kernel.org/stable/c/4dc1051939e499c838229af035464a5fc7671198
- https://git.kernel.org/stable/c/827ec385458adeeda651de2b6f3537e386b1a8d9
- https://git.kernel.org/stable/c/8f3365ed2a5db2ac95ab70a6c47561db39d24537
- https://git.kernel.org/stable/c/9da70a43b5fea60d758137f7f0ccfe19356cb5bb
- https://git.kernel.org/stable/c/b138bc665e21d4422382ab43aebdf0a2b7bb9cb3
- https://nvd.nist.gov/vuln/detail/CVE-2026-89730
- https://www.cve.org/CVERecord?id=CVE-2026-89730
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
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GitHub
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