# CVE-2024-43890: linux: In the Linux kernel, the following vulnerability has been resolved:  tracing: Fix overflow in get_free_elt()  "tracin...

CVE-2024-43890 is fixed in 44 products on 1 platform, first by DEBIAN-CVE-2024-43890, released August 26, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-43890
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 26, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  tracing: Fix overflow in get_free_elt()  "tracing_map->next_elt" in get_free_elt() is at risk of overflowing.  Once it overflows, new elements can still be inserted into the tracing_map even though the maximum number of elements (`max_elts`) has been reached. Continuing to insert elements after the overflow could result in the tracing_map containing "tracing_map->max_size" elements, leaving no empty entries. If any attempt is made to insert an element into a full tracing_map using `__tracing_map_insert()`, it will cause an infinite loop with preemption disabled, leading to a CPU hang problem.  Fix this by preventing any further increments to "tracing_map->next_elt" once it reaches "tracing_map->max_elt".

## 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 | dtb-aarch64 opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-64kb opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-64kb sles 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-azure opensuse-leap 15.6 | 6.4.0-150600.8.14.1 | [SUSE-SU-2024:3551-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3551-1.md) | Oct 8, 2024 |
| Linux | kernel-azure sles 15.6 | 6.4.0-150600.8.14.1 | [SUSE-SU-2024:3551-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3551-1.md) | Oct 8, 2024 |
| Linux | kernel-coco sles 15.6 | 6.4.0-15061.6.coco15sp6.1 | [SUSE-SU-2024:3553-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3553-1.md) | Oct 8, 2024 |
| Linux | kernel-coco_debug sles 15.6 | 6.4.0-15061.6.coco15sp6.1 | [SUSE-SU-2024:3553-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3553-1.md) | Oct 8, 2024 |
| Linux | kernel-debug opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-default opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-default sles 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-default-base opensuse-leap 15.6 | 6.4.0-150600.23.25.1.150600.12.10.2 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.25.1.150600.12.10.2 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-docs opensuse-leap 15.6 | 6.4.0-150600.23.25.2 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.25.2 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-kvmsmall opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-livepatch-SLE15-SP6-RT_Update_4 sles 15.6 | 1-150600.1.3.1 | [SUSE-SU-2024:3564-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3564-1.md) | Oct 9, 2024 |
| Linux | kernel-livepatch-SLE15-SP6_Update_5 sles 15.6 | 1-150600.13.3.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-obs-build opensuse-leap 15.6 | 6.4.0-150600.23.25.2 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.25.2 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-obs-qa opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-rt opensuse-leap 15.6 | 6.4.0-150600.10.14.1 | [SUSE-SU-2024:3564-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3564-1.md) | Oct 9, 2024 |
| Linux | kernel-rt_debug opensuse-leap 15.6 | 6.4.0-150600.10.14.1 | [SUSE-SU-2024:3564-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3564-1.md) | Oct 9, 2024 |
| Linux | kernel-source opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-source sles 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-source-azure opensuse-leap 15.6 | 6.4.0-150600.8.14.1 | [SUSE-SU-2024:3551-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3551-1.md) | Oct 8, 2024 |
| Linux | kernel-source-azure sles 15.6 | 6.4.0-150600.8.14.1 | [SUSE-SU-2024:3551-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3551-1.md) | Oct 8, 2024 |
| Linux | kernel-source-coco sles 15.6 | 6.4.0-15061.6.coco15sp6.1 | [SUSE-SU-2024:3553-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3553-1.md) | Oct 8, 2024 |
| Linux | kernel-source-rt opensuse-leap 15.6 | 6.4.0-150600.10.14.1 | [SUSE-SU-2024:3564-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3564-1.md) | Oct 9, 2024 |
| Linux | kernel-syms opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-syms-azure opensuse-leap 15.6 | 6.4.0-150600.8.14.1 | [SUSE-SU-2024:3551-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3551-1.md) | Oct 8, 2024 |
| Linux | kernel-syms-azure sles 15.6 | 6.4.0-150600.8.14.1 | [SUSE-SU-2024:3551-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3551-1.md) | Oct 8, 2024 |
| Linux | kernel-syms-coco sles 15.6 | 6.4.0-15061.6.coco15sp6.1 | [SUSE-SU-2024:3553-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3553-1.md) | Oct 8, 2024 |
| Linux | kernel-syms-rt opensuse-leap 15.6 | 6.4.0-150600.10.14.1 | [SUSE-SU-2024:3564-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3564-1.md) | Oct 9, 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 | kernel-zfcpdump opensuse-leap 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | kernel-zfcpdump sles 15.6 | 6.4.0-150600.23.25.1 | [SUSE-SU-2024:3561-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3561-1.md) | Oct 9, 2024 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.106-1 | [DEBIAN-CVE-2024-43890](https://patchblox.com/security/data/fix/linux/debian-cve-2024-43890.md) | Aug 26, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.10.6-1 | [DEBIAN-CVE-2024-43890](https://patchblox.com/security/data/fix/linux/debian-cve-2024-43890.md) | Aug 26, 2024 |
| Linux | linux Debian 14 | 6.10.6-1 | [DEBIAN-CVE-2024-43890](https://patchblox.com/security/data/fix/linux/debian-cve-2024-43890.md) | Aug 26, 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 |

---

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