# CVE-2024-41027: linux: In the Linux kernel, the following vulnerability has been resolved:  Fix userfaultfd_api to return EINVAL as expected...

CVE-2024-41027 is fixed in 35 products on 1 platform, first by DEBIAN-CVE-2024-41027, released July 29, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-41027
- Priority: Routine
- CVSS: 3.3 (low)
- EPSS: 0.0028
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 29, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  Fix userfaultfd_api to return EINVAL as expected  Currently if we request a feature that is not set in the Kernel config we fail silently and return all the available features.  However, the man page indicates we should return an EINVAL.  We need to fix this issue since we can end up with a Kernel warning should a program request the feature UFFD_FEATURE_WP_UNPOPULATED on a kernel with the config not set with this feature.   [  200.812896] WARNING: CPU: 91 PID: 13634 at mm/memory.c:1660 zap_pte_range+0x43d/0x660  [  200.820738] Modules linked in:  [  200.869387] CPU: 91 PID: 13634 Comm: userfaultfd Kdump: loaded Not tainted 6.9.0-rc5+ #8  [  200.877477] Hardware name: Dell Inc. PowerEdge R6525/0N7YGH, BIOS 2.7.3 03/30/2022  [  200.885052] RIP: 0010:zap_pte_range+0x43d/0x660

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | bpftool ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | bpftool ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | bpftool-debuginfo amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-debuginfo amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-devel amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-headers amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-libbpf amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-libbpf-devel amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-libbpf-static amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-livepatch-6.1.102-108.177 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-modules-extra amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-modules-extra-common amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-tools amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-tools-debuginfo amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-tools-devel amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | kernel-uek ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-container ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-container ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-container-debug ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-container-debug ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-core ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-core ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug-core ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug-core ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug-devel ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug-devel ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug-modules ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug-modules ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug-modules-extra ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-debug-modules-extra ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-devel ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-devel ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-doc ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-doc ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-modules ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-modules ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-modules-extra ol 8 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | kernel-uek-modules-extra ol 9 | 0:5.15.0-210.163.7.el9uek | [ELSA-2024-12618](https://patchblox.com/security/data/fix/linux/elsa-2024-12618.md) | Sep 12, 2024 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.106-1 | [DEBIAN-CVE-2024-41027](https://patchblox.com/security/data/fix/linux/debian-cve-2024-41027.md) | Jul 29, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.9.10-1 | [DEBIAN-CVE-2024-41027](https://patchblox.com/security/data/fix/linux/debian-cve-2024-41027.md) | Jul 29, 2024 |
| Linux | linux Debian 14 | 6.9.10-1 | [DEBIAN-CVE-2024-41027](https://patchblox.com/security/data/fix/linux/debian-cve-2024-41027.md) | Jul 29, 2024 |
| Linux | perf amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | perf-debuginfo amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | python3-perf amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |
| Linux | python3-perf-debuginfo amzn 2023 | 6.1.102-108.177.amzn2023 | [ALAS2023-2024-679](https://patchblox.com/security/data/fix/linux/alas2023-2024-679.md) | Aug 1, 2024 |

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