# CVE-2021-47097: bpftool: Input: elantech - fix stack out of bound access in elantech_change_report_id() (CKI Backport Bot) [RHEL-41938]

CVE-2021-47097 is fixed in 38 products on 1 platform, first by DEBIAN-CVE-2021-47097, released March 4, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-47097
- Priority: High
- CVSS: 7.8 (IMPORTANT)
- EPSS: 0.0040
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 4, 2024

## Description

Input: elantech - fix stack out of bound access in elantech_change_report_id() (CKI Backport Bot) [RHEL-41938]

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | bpftool almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | bpftool ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel rocky 8 | 0:4.18.0-553.22.1.el8_10 | [RLSA-2024:7000](https://patchblox.com/security/data/fix/linux/rlsa-2024-7000.md) | May 7, 2025 |
| Linux | kernel-abi-stablelists RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-abi-stablelists almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-abi-stablelists ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-core RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-core almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-core ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-cross-headers almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-cross-headers ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-core RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-core almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-core ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-devel RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-devel almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-devel ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-modules RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-modules almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-modules ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-modules-extra RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-modules-extra almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-debug-modules-extra ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-devel RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-devel almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-devel ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-doc RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-doc almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-doc ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-headers almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-headers ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-modules RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-modules almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-modules ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-modules-extra RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-modules-extra almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-modules-extra ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-rt RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt rocky 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RLSA-2024:7001](https://patchblox.com/security/data/fix/linux/rlsa-2024-7001.md) | Sep 30, 2024 |
| Linux | kernel-rt-core RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-core almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-core RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-core almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-devel RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-devel almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-kvm RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-kvm almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-modules RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-modules almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-modules-extra RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-debug-modules-extra almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-devel RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-devel almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-kvm RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-kvm almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-modules RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-modules almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-modules-extra RHEL 8 | 0:4.18.0-553.22.1.rt7.363.el8_10 | [RHSA-2024:7001](https://patchblox.com/security/data/fix/linux/rhsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-rt-modules-extra almalinux 8 | 4.18.0-553.22.1.rt7.363.el8_10 | [ALSA-2024:7001](https://patchblox.com/security/data/fix/linux/alsa-2024-7001.md) | Sep 24, 2024 |
| Linux | kernel-tools RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-tools almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-tools ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-tools-libs RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-tools-libs almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-tools-libs ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-tools-libs-devel RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-tools-libs-devel almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-tools-libs-devel ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump-core RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump-core almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump-devel RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump-devel almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump-modules RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump-modules almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump-modules-extra RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | kernel-zfcpdump-modules-extra almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | linux Debian 12.15 (bookworm) | 5.15.15-1 | [DEBIAN-CVE-2021-47097](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47097.md) | Mar 4, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.15.15-1 | [DEBIAN-CVE-2021-47097](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47097.md) | Mar 4, 2024 |
| Linux | linux Debian 14 | 5.15.15-1 | [DEBIAN-CVE-2021-47097](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47097.md) | Mar 4, 2024 |
| Linux | perf RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | perf almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | perf ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |
| Linux | python3-perf RHEL 8 | 0:4.18.0-553.22.1.el8_10 | [RHSA-2024:7000](https://patchblox.com/security/data/fix/linux/rhsa-2024-7000.md) | Sep 24, 2024 |
| Linux | python3-perf almalinux 8 | 4.18.0-553.22.1.el8_10 | [ALSA-2024:7000](https://patchblox.com/security/data/fix/linux/alsa-2024-7000.md) | Sep 24, 2024 |
| Linux | python3-perf ol 8 | 0:4.18.0-553.22.1.el8_10 | [ELSA-2024-7000](https://patchblox.com/security/data/fix/linux/elsa-2024-7000.md) | Sep 24, 2024 |

---

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