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*()")
Fix
Patch, vendor advisory and mitigation references on NVD 12
- https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4 Patch
- https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a Patch
- https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9 Patch
- https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea Patch
- https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8 Patch
- https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034 Patch
- https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4 Patch
- https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a Patch
- https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9 Patch
- https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea Patch
- https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8 Patch
- https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.8 · linux, debian, fedoraprojectNVD modified 2026-10-15 01:17
Affected (CPE criteria) 9
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*
References 18
- https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4 Patch
- https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a Patch
- https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9 Patch
- https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea Patch
- https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8 Patch
- https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034 Patch
- https://git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4 Patch
- https://git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a Patch
- https://git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9 Patch
- https://git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea Patch
- https://git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8 Patch
- https://git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034 Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/ Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html