# CVE-2024-35996: linux: In the Linux kernel, the following vulnerability has been resolved: cpu: Re-enable CPU mitigations by default for !X... CVE-2024-35996 is fixed in 22 products on 1 platform, first by DEBIAN-CVE-2024-35996, released May 20, 2024. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2024-35996 - Priority: Routine - CVSS: 5.5 (medium) - EPSS: 0.0024 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: May 20, 2024 ## Description In the Linux kernel, the following vulnerability has been resolved: cpu: Re-enable CPU mitigations by default for !X86 architectures Rename x86's to CPU_MITIGATIONS, define it in generic code, and force it on for all architectures exception x86. A recent commit to turn mitigations off by default if SPECULATION_MITIGATIONS=n kinda sorta missed that "cpu_mitigations" is completely generic, whereas SPECULATION_MITIGATIONS is x86-specific. Rename x86's SPECULATIVE_MITIGATIONS instead of keeping both and have it select CPU_MITIGATIONS, as having two configs for the same thing is unnecessary and confusing. This will also allow x86 to use the knob to manage mitigations that aren't strictly related to speculative execution. Use another Kconfig to communicate to common code that CPU_MITIGATIONS is already defined instead of having x86's menu depend on the common CPU_MITIGATIONS. This allows keeping a single point of contact for all of x86's mitigations, and it's not clear that other architectures *want* to allow disabling mitigations at compile-time. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | bpftool-debuginfo amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-debuginfo amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-devel amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-headers amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-libbpf amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-libbpf-devel amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-libbpf-static amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-livepatch-6.1.90-99.173 amzn 2023 | 1.0-0.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-modules-extra amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-modules-extra-common amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-tools amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-tools-debuginfo amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | kernel-tools-devel amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | linux Debian 12.15 (bookworm) | 6.1.90-1 | [DEBIAN-CVE-2024-35996](https://patchblox.com/security/data/fix/linux/debian-cve-2024-35996.md) | May 20, 2024 | | Linux | linux Debian 13.5 (trixie) | 6.8.9-1 | [DEBIAN-CVE-2024-35996](https://patchblox.com/security/data/fix/linux/debian-cve-2024-35996.md) | May 20, 2024 | | Linux | linux Debian 14 | 6.8.9-1 | [DEBIAN-CVE-2024-35996](https://patchblox.com/security/data/fix/linux/debian-cve-2024-35996.md) | May 20, 2024 | | Linux | perf amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | perf-debuginfo amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | python3-perf amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | | Linux | python3-perf-debuginfo amzn 2023 | 6.1.90-99.173.amzn2023 | [ALAS2023-2024-695](https://patchblox.com/security/data/fix/linux/alas2023-2024-695.md) | Aug 1, 2024 | --- Data as of 2026-11-09T01:18:40Z UTC. 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