CVE-2024-42131

In the Linux kernel, the following vulnerability has been resolved: mm: avoid overflows in dirty throttling logic The dirty throttling logic is interspersed with assumptions that dirty limits in PAGE_SIZE units fit into 32-bit (so that various multiplications fit into 64-bits). If limits end up being larger, we will hit overflows, possible divisions by 0 etc. Fix these problems by never allowing so large dirty limits as they have dubious practical value anyway. For dirty_bytes / dirty_background_bytes interfaces we can just refuse to set so large limits. For dirty_ratio / dirty_background_ratio it isn't so simple as the dirty limit is computed from the amount of available memory which can change due to memory hotplug etc. So when converting dirty limits from ratios to numbers of pages, we just don't allow the result to exceed UINT_MAX. This is root-only triggerable problem which occurs when the operator sets dirty limits to >16 TB.

• CWE-190

• https://git.kernel.org/stable/c/2b2d2b8766db028bd827af34075f221ae9e9efffPatch
• https://git.kernel.org/stable/c/385d838df280eba6c8680f9777bfa0d0bfe7e8b2Patch
• https://git.kernel.org/stable/c/4d3817b64eda07491bdd86a234629fe0764fb42aPatch
• https://git.kernel.org/stable/c/7a49389771ae7666f4dc3426e2a4594bf23ae290Patch
• https://git.kernel.org/stable/c/8e0b5e7f2895eccef5c2a0018b589266f90c4805Patch
• https://git.kernel.org/stable/c/a25e8536184516b55ef89ab91dd2eea429de28d2Patch
• https://git.kernel.org/stable/c/bd16a7ee339aef3ee4c90cb23902afb6af379ea0Patch
• https://git.kernel.org/stable/c/c83ed422c24f0d4b264f89291d4fabe285f80dbcPatch
• https://git.kernel.org/stable/c/385d838df280eba6c8680f9777bfa0d0bfe7e8b2Patch
• https://git.kernel.org/stable/c/7a49389771ae7666f4dc3426e2a4594bf23ae290Patch
• https://git.kernel.org/stable/c/8e0b5e7f2895eccef5c2a0018b589266f90c4805Patch
• https://git.kernel.org/stable/c/a25e8536184516b55ef89ab91dd2eea429de28d2Patch
• https://git.kernel.org/stable/c/bd16a7ee339aef3ee4c90cb23902afb6af379ea0Patch
• https://git.kernel.org/stable/c/c83ed422c24f0d4b264f89291d4fabe285f80dbcPatch
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Published

Jul 30, 2024

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2024-42126In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-42127In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-42128In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-42129In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-4213The Shopping Cart & eCommerce Store plugin for WordPress is …5.3
• CVE-2024-42130Rejected reason: This CVE ID has been rejected or withdrawn …
• CVE-2024-42132In the Linux kernel, the following vulnerability has been re…7.1
• CVE-2024-42133In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-42134In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-42135In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2024-42136In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2024-42137In the Linux kernel, the following vulnerability has been re…5.5