# CVE-2024-44968: linux: In the Linux kernel, the following vulnerability has been resolved: tick/broadcast: Move per CPU pointer access into... CVE-2024-44968 is fixed in 19 products on 1 platform, first by DEBIAN-CVE-2024-44968, released September 4, 2024. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2024-44968 - Priority: Routine - CVSS: 5.5 (medium) - EPSS: 0.0022 - 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: tick/broadcast: Move per CPU pointer access into the atomic section The recent fix for making the take over of the broadcast timer more reliable retrieves a per CPU pointer in preemptible context. This went unnoticed as compilers hoist the access into the non-preemptible region where the pointer is actually used. But of course it's valid that the compiler keeps it at the place where the code puts it which rightfully triggers: BUG: using smp_processor_id() in preemptible [00000000] code: caller is hotplug_cpu__broadcast_tick_pull+0x1c/0xc0 Move it to the actual usage site which is in a non-preemptible region. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | bpftool ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek ol 8 | 0:5.4.17-2136.336.5.1.el8uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | | Linux | kernel-uek ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-container ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-container ol 8 | 0:5.4.17-2136.336.5.1.el7uek | [ELSA-2024-12782](https://patchblox.com/security/data/fix/linux/elsa-2024-12782.md) | Oct 14, 2024 | | Linux | kernel-uek-container ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-container-debug ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-container-debug ol 8 | 0:5.4.17-2136.336.5.1.el7uek | [ELSA-2024-12782](https://patchblox.com/security/data/fix/linux/elsa-2024-12782.md) | Oct 14, 2024 | | Linux | kernel-uek-container-debug ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-core ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-core ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug ol 8 | 0:5.4.17-2136.336.5.1.el8uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | | Linux | kernel-uek-debug ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-core ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-core ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-devel ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-devel ol 8 | 0:5.4.17-2136.336.5.1.el8uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | | Linux | kernel-uek-debug-devel ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-modules ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-modules ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-modules-extra ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-debug-modules-extra ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-devel ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-devel ol 8 | 0:5.4.17-2136.336.5.1.el8uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | | Linux | kernel-uek-devel ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-doc ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-doc ol 8 | 0:5.4.17-2136.336.5.1.el8uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | | Linux | kernel-uek-doc ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-modules ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-modules ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-modules-extra ol 8 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-modules-extra ol 9 | 0:5.15.0-302.167.6.el9uek | [ELSA-2024-12815](https://patchblox.com/security/data/fix/linux/elsa-2024-12815.md) | Nov 11, 2024 | | Linux | kernel-uek-tools ol 8 | 0:5.4.17-2136.336.5.1.el7uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | | Linux | kernel-uek-tools-libs ol 8 | 0:5.4.17-2136.336.5.1.el7uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | | Linux | linux Debian 12.15 (bookworm) | 6.1.106-1 | [DEBIAN-CVE-2024-44968](https://patchblox.com/security/data/fix/linux/debian-cve-2024-44968.md) | Sep 4, 2024 | | Linux | linux Debian 13.5 (trixie) | 6.10.6-1 | [DEBIAN-CVE-2024-44968](https://patchblox.com/security/data/fix/linux/debian-cve-2024-44968.md) | Sep 4, 2024 | | Linux | linux Debian 14 | 6.10.6-1 | [DEBIAN-CVE-2024-44968](https://patchblox.com/security/data/fix/linux/debian-cve-2024-44968.md) | Sep 4, 2024 | | Linux | perf ol 8 | 0:5.4.17-2136.336.5.1.el7uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | | Linux | python-perf ol 8 | 0:5.4.17-2136.336.5.1.el7uek | [ELSA-2024-12780](https://patchblox.com/security/data/fix/linux/elsa-2024-12780.md) | Oct 11, 2024 | --- Data as of 2026-11-08T06:59:42Z UTC. 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