Bug 2532333 (CVE-2026-80933) - CVE-2026-80933 kernel: wifi: mt76: mt7996: validate default EEPROM firmware size
Summary: CVE-2026-80933 kernel: wifi: mt76: mt7996: validate default EEPROM firmware size
Keywords:
Status: NEW
Alias: CVE-2026-80933
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-11 22:25 UTC by OSIDB Bzimport
Modified: 2026-09-14 13:49 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-11 22:25:43 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7996: validate default EEPROM firmware size

The default EEPROM firmware is parsed and copied as a full EEPROM
without checking its length. A truncated file can make the driver
read beyond the firmware buffer during variant validation or the
fallback copy.

Reject files shorter than MT7996_EEPROM_SIZE before parsing or
copying the firmware.
Comment 1 Keith Grant 2026-09-14 13:49:05 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80933.mbox
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