CVE-2022-48949: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: igb: Initialize mailbox message for VF reset When a MAC address is not assigned to the VF, that portion of the message sent to the VF is not set. The memory, however, is allocated from the stack meaning that information may be leaked to the VM. Initialize the message buffer to 0 so that no information is passed to the VM in this case.

Affected products

• Linux Linux Kernel: from 4.0, before 4.14.303 (fixed in 4.14.303); from 4.15, before 4.19.270 (fixed in 4.19.270); from 4.20, before 5.4.229 (fixed in 5.4.229); from 5.5, before 5.10.161 (fixed in 5.10.161); from 5.11, before 5.15.85 (fixed in 5.15.85); from 5.16, before 6.0.15 (fixed in 6.0.15); …

Published 2024-10-21. Last modified 2026-06-17.