CVE-2024-53122 mptcp: cope racing subflow creation in mptcp_rcv_space_adjust
High 7.5
Published
Updated
Check this codebase for CVE-2024-53122 and fix it if it is affected.
What it is: CVE-2024-53122 is a high-severity vulnerability in Linux kernel, published on 2 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-53122 in the wild and no public exploit code.
Affected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2024-53122/ (Markdown: https://insights.sbomify.com/CVE-2024-53122/index.md)
A race condition in the Linux kernel MPTCP implementation can cause a divide-by-zero error, leading to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-53122?
CVE-2024-53122 is a high-severity vulnerability in Linux kernel, published on 2 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
mptcp: cope racing subflow creation in mptcp_rcv_space_adjust
Additional active subflows - i.e. created by the in kernel path manager - are included into the subflow list before starting the 3whs.
A racing recvmsg() spooling data received on an already established subflow would unconditionally call tcp_cleanup_rbuf() on all the current subflows, potentially hitting a divide by zero error on the newly created ones.
Explicitly check that the subflow is in a suitable state before invoking tcp_cleanup_rbuf().
Weakness: CWE-362
Which versions are affected by CVE-2024-53122?
It affects 1 product.
Linux distribution packages (40)
kpatch-patch-4_18_0-553 Red Hat:enterprise_linux:8::baseos | All versions | 0:1-3.el8_10 |
kpatch-patch-4_18_0-553-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1-3.el8_10 |
kpatch-patch-4_18_0-553-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:1-3.el8_10 |
kpatch-patch-4_18_0-553_16_1 Red Hat:enterprise_linux:8::baseos | All versions | 0:1-2.el8_10 |
kpatch-patch-4_18_0-553_16_1-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1-2.el8_10 |
kpatch-patch-4_18_0-553_16_1-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:1-2.el8_10 |
kpatch-patch-4_18_0-553_30_1 Red Hat:enterprise_linux:8::baseos | All versions | 0:1-1.el8_10 |
kpatch-patch-4_18_0-553_30_1-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:1-1.el8_10 |
kpatch-patch-4_18_0-553_30_1-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:1-1.el8_10 |
kpatch-patch-5_14_0-503_15_1 Red Hat:enterprise_linux:9::baseos | All versions | 0:1-1.el9_5 |
kpatch-patch-5_14_0-503_15_1-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:1-1.el9_5 |
kpatch-patch-5_14_0-503_15_1-debugsource Red Hat:enterprise_linux:9::baseos | All versions | 0:1-1.el9_5 |
bpftool Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
bpftool-debuginfo Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-abi-stablelists Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-core Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-debug Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-debug-core Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-debug-debuginfo Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-debug-devel Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-debug-modules Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-debug-modules-extra Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-debuginfo Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-debuginfo-common-x86_64 Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-devel Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-doc Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-modules Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-modules-extra Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-tools Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-tools-debuginfo Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
kernel-tools-libs Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
perf Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
perf-debuginfo Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
python3-perf Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
python3-perf-debuginfo Red Hat:rhel_aus:8.4::baseos | All versions | 0:4.18.0-305.148.1.el8_4 |
bpftool Red Hat:rhel_aus:8.6::baseos | All versions | 0:4.18.0-372.134.1.el8_6 |
bpftool-debuginfo Red Hat:rhel_aus:8.6::baseos | All versions | 0:4.18.0-372.134.1.el8_6 |
kernel Red Hat:rhel_aus:8.6::baseos | All versions | 0:4.18.0-372.134.1.el8_6 |
kernel-abi-stablelists Red Hat:rhel_aus:8.6::baseos | All versions | 0:4.18.0-372.134.1.el8_6 |
Products include Linux kernel.
How do I fix CVE-2024-53122?
Apply the vendor's patch.
Is CVE-2024-53122 being exploited?
There is no known exploitation of CVE-2024-53122 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-54209, AZL-54255, BELL-CVE-2024-53122, DEBIAN-CVE-2024-53122, GHSA-x34g-xjxv-fc48, RHSA-2025:0049 and 14 more.