# CVE-2023-52704: linux: In the Linux kernel, the following vulnerability has been resolved:  freezer,umh: Fix call_usermode_helper_exec() vs...

CVE-2023-52704 is fixed in 20 products on 1 platform, first by ALAS2023-2023-127, released March 11, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-52704
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 11, 2023

## Description

In the Linux kernel, the following vulnerability has been resolved:  freezer,umh: Fix call_usermode_helper_exec() vs SIGKILL  Tetsuo-San noted that commit f5d39b020809 ("freezer,sched: Rewrite core freezer logic") broke call_usermodehelper_exec() for the KILLABLE case.  Specifically it was missed that the second, unconditional, wait_for_completion() was not optional and ensures the on-stack completion is unused before going out-of-scope.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-devel amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-headers amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-libbpf amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-livepatch-6.1.15-28.43 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-tools amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.15-1 | [DEBIAN-CVE-2023-52704](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52704.md) | May 21, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.1.15-1 | [DEBIAN-CVE-2023-52704](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52704.md) | May 21, 2024 |
| Linux | linux Debian 14 | 6.1.15-1 | [DEBIAN-CVE-2023-52704](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52704.md) | May 21, 2024 |
| Linux | perf amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | perf-debuginfo amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | python3-perf amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.15-28.43.amzn2023 | [ALAS2023-2023-127](https://patchblox.com/security/data/fix/linux/alas2023-2023-127.md) | Mar 11, 2023 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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