SB2026032091 - Out-of-bounds write in Linux kernel google gve driver
Published: March 20, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2026-23262)
The vulnerability allows a local user to cause memory corruption and incorrect statistics reporting.
The vulnerability exists due to improper buffer size management in the gve driver's statistics reporting region when changing the number of queues. A local user can trigger a queue count change to cause the NIC to write past the allocated stats region or create gaps in stats reporting.
The issue arises because the driver and NIC miscalculate offsets into the shared memory region during queue count changes, potentially leading to memory corruption or incorrect statistics.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/11f8311f69e4c361717371b4901ff92daeb76e9c
- https://git.kernel.org/stable/c/7b9ebcce0296e104a0d82a6b09d68564806158ff
- https://git.kernel.org/stable/c/837c662f47dac43efa1aef2dd433c6b4b4c073af
- https://git.kernel.org/stable/c/9d93332397405b62a3300b22d04ac65d990b91ff
- https://git.kernel.org/stable/c/9fa0a755db3e1945fe00f73fe27d85ef6c8818b7
- https://git.kernel.org/stable/c/df54838ab61826ecc1a562ffa5e280c3ab7289a7
- https://git.kernel.org/stable/c/f432f7613c220db32c2c6942420daf7b3f2e7d7e