CVE-2024-26988: Debian Linux

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: init/main.c: Fix potential static_command_line memory overflow We allocate memory of size 'xlen + strlen(boot_command_line) + 1' for static_command_line, but the strings copied into static_command_line are extra_command_line and command_line, rather than extra_command_line and boot_command_line. When strlen(command_line) > strlen(boot_command_line), static_command_line will overflow. This patch just recovers strlen(command_line) which was miss-consolidated with strlen(boot_command_line) in the commit f5c7310ac73e ("init/main: add checks for the return value of memblock_alloc*()")

Affected products

• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 38 only; version 39 only; version 40 only
• Linux Linux Kernel: from 5.1, before 5.10.216 (fixed in 5.10.216); from 5.11, before 5.15.157 (fixed in 5.15.157); from 5.16, before 6.1.88 (fixed in 6.1.88); from 6.2, before 6.6.29 (fixed in 6.6.29); from 6.7, before 6.8.8 (fixed in 6.8.8); version 6.9 only

Published 2024-05-01. Last modified 2026-06-17.