In the Linux kernel, the following vulnerability has been resolved:
firmware: coreboot: Validate table bounds
The existing coreboot_table_populate() bounds checks limit individual
entries to the mapped length. However, coreboot_table_probe() replaces
the platform resource length with header and table sizes supplied by
firmware before mapping the full table.
A malformed table can overflow the 32-bit size addition or advertise an
extent beyond the resource, causing the driver to map and parse memory
outside the resource. A resource shorter than the fixed header is also
mapped as though it contained a complete header.
Reject resources shorter than the fixed header. After validating the
signature, require a complete header, calculate the advertised extent
with overflow checking, and reject extents beyond the resource before
remapping the table.
firmware: coreboot: Validate table bounds
The existing coreboot_table_populate() bounds checks limit individual
entries to the mapped length. However, coreboot_table_probe() replaces
the platform resource length with header and table sizes supplied by
firmware before mapping the full table.
A malformed table can overflow the 32-bit size addition or advertise an
extent beyond the resource, causing the driver to map and parse memory
outside the resource. A resource shorter than the fixed header is also
mapped as though it contained a complete header.
Reject resources shorter than the fixed header. After validating the
signature, require a complete header, calculate the advertised extent
with overflow checking, and reject extents beyond the resource before
remapping the table.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 17 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: firmware: coreboot: Validate table bounds The existing coreboot_table_populate() bounds checks limit individual entries to the mapped length. However, coreboot_table_probe() replaces the platform resource length with header and table sizes supplied by firmware before mapping the full table. A malformed table can overflow the 32-bit size addition or advertise an extent beyond the resource, causing the driver to map and parse memory outside the resource. A resource shorter than the fixed header is also mapped as though it contained a complete header. Reject resources shorter than the fixed header. After validating the signature, require a complete header, calculate the advertised extent with overflow checking, and reject extents beyond the resource before remapping the table. | |
| Title | firmware: coreboot: Validate table bounds | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
|
Projects
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MITRE
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-09-17T16:08:52.307Z
Reserved: 2026-09-11T19:38:34.804Z
Link: CVE-2026-90341
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-17T17:17:32.740
Modified: 2026-09-17T17:17:32.740
Link: CVE-2026-90341
Redhat
No data.
OpenCVE Enrichment
No data.
Weaknesses
No weakness.