init/main.c: Fix potential static_command_line memory overflow

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Summary

CVECVE-2024-26988
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-05-01 06:15:16 UTC
Updated2026-05-12 12:16:29 UTC
DescriptionIn 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*()")

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-787

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 2ef607ea103616aec0289f1b65d103d499fa903a git Not specified
CNA Linux Linux affected f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 0dc727a4e05400205358a22c3d01ccad2c8e1fe4 git Not specified
CNA Linux Linux affected f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 76c2f4d426a5358fced5d5990744d46f10a4ccea git Not specified
CNA Linux Linux affected f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 81cf85ae4f2dd5fa3e43021782aa72c4c85558e8 git Not specified
CNA Linux Linux affected f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 936a02b5a9630c5beb0353c3085cc49d86c57034 git Not specified
CNA Linux Linux affected f5c7310ac73ea270e3a1acdb73d1b4817f11fd67 46dad3c1e57897ab9228332f03e1c14798d2d3b9 git Not specified
CNA Linux Linux affected 5.1 Not specified
CNA Linux Linux unaffected 5.1 semver Not specified
CNA Linux Linux unaffected 5.10.216 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.157 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.88 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.29 6.6.* semver Not specified
CNA Linux Linux unaffected 6.8.8 6.8.* semver Not specified
CNA Linux Linux unaffected 6.9 * original_commit_for_fix Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.1 custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family unaffected * custom Not specified
ADP Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 Family affected V3.1 custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/46dad3c1e57897ab9228332f03e1c14798d2d3b9 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/76c2f4d426a5358fced5d5990744d46f10a4ccea af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/2ef607ea103616aec0289f1b65d103d499fa903a af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/81cf85ae4f2dd5fa3e43021782aa72c4c85558e8 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-613116.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/0dc727a4e05400205358a22c3d01ccad2c8e1fe4 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/936a02b5a9630c5beb0353c3085cc49d86c57034 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
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