# CVE-2024-44974: linux: In the Linux kernel, the following vulnerability has been resolved:  mptcp: pm: avoid possible UaF when selecting end...

CVE-2024-44974 is fixed in 47 products on 1 platform, first by DEBIAN-CVE-2024-44974, released September 4, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-44974
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 4, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  mptcp: pm: avoid possible UaF when selecting endp  select_local_address() and select_signal_address() both select an endpoint entry from the list inside an RCU protected section, but return a reference to it, to be read later on. If the entry is dereferenced after the RCU unlock, reading info could cause a Use-after-Free.  A simple solution is to copy the required info while inside the RCU protected section to avoid any risk of UaF later. The address ID might need to be modified later to handle the ID0 case later, so a copy seems OK to deal with.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | dtb-aarch64 opensuse-leap 15.6 | 6.4.0-150600.23.42.1 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-64kb opensuse-leap 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-64kb sles 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-azure opensuse-leap 15.6 | 6.4.0-150600.8.31.1 | [SUSE-SU-2025:0847-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0847-1.md) | Mar 12, 2025 |
| Linux | kernel-azure sles 15.6 | 6.4.0-150600.8.31.1 | [SUSE-SU-2025:0847-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0847-1.md) | Mar 12, 2025 |
| Linux | kernel-coco sles 15.6 | 6.4.0-15061.18.coco15sp6.1 | [SUSE-SU-2025:0784-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0784-1.md) | Mar 5, 2025 |
| Linux | kernel-coco_debug sles 15.6 | 6.4.0-15061.18.coco15sp6.1 | [SUSE-SU-2025:0784-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0784-1.md) | Mar 5, 2025 |
| Linux | kernel-debug opensuse-leap 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-default opensuse-leap 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-default sles 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-default-base opensuse-leap 15.6 | 6.4.0-150600.23.42.2.150600.12.18.4 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.42.2.150600.12.18.4 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-devel amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-docs opensuse-leap 15.6 | 6.4.0-150600.23.42.1 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.42.1 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-headers amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-kvmsmall opensuse-leap 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-libbpf amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-livepatch-6.1.109-118.189 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-livepatch-SLE15-SP6-RT_Update_9 sles 15.6 | 1-150600.1.3.2 | [SUSE-SU-2025:0955-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0955-1.md) | Mar 19, 2025 |
| Linux | kernel-livepatch-SLE15-SP6_Update_9 sles 15.6 | 1-150600.13.3.4 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-modules-extra amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-modules-extra-common amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-obs-build opensuse-leap 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-obs-qa opensuse-leap 15.6 | 6.4.0-150600.23.42.1 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-rt opensuse-leap 15.6 | 6.4.0-150600.10.29.1 | [SUSE-SU-2025:0955-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0955-1.md) | Mar 19, 2025 |
| Linux | kernel-rt_debug opensuse-leap 15.6 | 6.4.0-150600.10.29.1 | [SUSE-SU-2025:0955-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0955-1.md) | Mar 19, 2025 |
| Linux | kernel-source opensuse-leap 15.6 | 6.4.0-150600.23.42.1 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-source sles 15.6 | 6.4.0-150600.23.42.1 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-source-azure opensuse-leap 15.6 | 6.4.0-150600.8.31.1 | [SUSE-SU-2025:0847-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0847-1.md) | Mar 12, 2025 |
| Linux | kernel-source-azure sles 15.6 | 6.4.0-150600.8.31.1 | [SUSE-SU-2025:0847-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0847-1.md) | Mar 12, 2025 |
| Linux | kernel-source-coco sles 15.6 | 6.4.0-15061.18.coco15sp6.1 | [SUSE-SU-2025:0784-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0784-1.md) | Mar 5, 2025 |
| Linux | kernel-source-rt opensuse-leap 15.6 | 6.4.0-150600.10.29.1 | [SUSE-SU-2025:0955-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0955-1.md) | Mar 19, 2025 |
| Linux | kernel-syms opensuse-leap 15.6 | 6.4.0-150600.23.42.1 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.42.1 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-syms-azure opensuse-leap 15.6 | 6.4.0-150600.8.31.1 | [SUSE-SU-2025:0847-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0847-1.md) | Mar 12, 2025 |
| Linux | kernel-syms-azure sles 15.6 | 6.4.0-150600.8.31.1 | [SUSE-SU-2025:0847-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0847-1.md) | Mar 12, 2025 |
| Linux | kernel-syms-coco sles 15.6 | 6.4.0-15061.18.coco15sp6.1 | [SUSE-SU-2025:0784-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0784-1.md) | Mar 5, 2025 |
| Linux | kernel-syms-rt opensuse-leap 15.6 | 6.4.0-150600.10.29.1 | [SUSE-SU-2025:0955-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0955-1.md) | Mar 19, 2025 |
| Linux | kernel-tools amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | kernel-zfcpdump opensuse-leap 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | kernel-zfcpdump sles 15.6 | 6.4.0-150600.23.42.2 | [SUSE-SU-2025:0856-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0856-1.md) | Mar 13, 2025 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.112-1 | [DEBIAN-CVE-2024-44974](https://patchblox.com/security/data/fix/linux/debian-cve-2024-44974.md) | Sep 4, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.10.7-1 | [DEBIAN-CVE-2024-44974](https://patchblox.com/security/data/fix/linux/debian-cve-2024-44974.md) | Sep 4, 2024 |
| Linux | linux Debian 14 | 6.10.7-1 | [DEBIAN-CVE-2024-44974](https://patchblox.com/security/data/fix/linux/debian-cve-2024-44974.md) | Sep 4, 2024 |
| Linux | perf amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | perf-debuginfo amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | python3-perf amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.109-118.189.amzn2023 | [ALAS2023-2024-779](https://patchblox.com/security/data/fix/linux/alas2023-2024-779.md) | Dec 5, 2024 |

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