# CVE-2021-0512: kpatch-patch-4_18_0-305_19_1: This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of...

CVE-2021-0512 is fixed in 44 products on 1 platform, first by RHSA-2021:4056, released November 2, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-0512
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0028
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 2, 2021

## Description

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.  Security Fix(es):  * kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385)  * kernel: out-of-bounds write due to a heap buffer overflow in __hidinput_change_resolution_multipliers() of hid-input.c (CVE-2021-0512)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | bpftool ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-abi-stablelists RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-abi-stablelists ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-core RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-core ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-cross-headers ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-debug RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-debug ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-debug-core RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-debug-core ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-debug-devel RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-debug-devel ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-debug-modules RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-debug-modules ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-debug-modules-extra RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-debug-modules-extra ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-devel RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-devel ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-doc RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-doc ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-headers ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-modules RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-modules ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-modules-extra RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-modules-extra ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-rt RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-core RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-debug RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-debug-core RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-debug-devel RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-debug-kvm RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-debug-modules RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-debug-modules-extra RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-devel RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-kvm RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-modules RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-rt-modules-extra RHEL 8 | 0:4.18.0-305.25.1.rt7.97.el8_4 | [RHSA-2021:4088](https://patchblox.com/security/data/fix/linux/rhsa-2021-4088.md) | Nov 2, 2021 |
| Linux | kernel-tools RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-tools ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-tools-libs RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-tools-libs ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-tools-libs-devel RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-tools-libs-devel ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | kernel-zfcpdump RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-zfcpdump-core RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-zfcpdump-devel RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-zfcpdump-modules RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kernel-zfcpdump-modules-extra RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | kpatch-patch-4_18_0-305 RHEL 8 | 0:1-6.el8 | [RHSA-2021:4122](https://patchblox.com/security/data/fix/linux/rhsa-2021-4122.md) | Nov 3, 2021 |
| Linux | kpatch-patch-4_18_0-305_10_2 RHEL 8 | 0:1-3.el8_4 | [RHSA-2021:4122](https://patchblox.com/security/data/fix/linux/rhsa-2021-4122.md) | Nov 3, 2021 |
| Linux | kpatch-patch-4_18_0-305_12_1 RHEL 8 | 0:1-2.el8_4 | [RHSA-2021:4122](https://patchblox.com/security/data/fix/linux/rhsa-2021-4122.md) | Nov 3, 2021 |
| Linux | kpatch-patch-4_18_0-305_17_1 RHEL 8 | 0:1-1.el8_4 | [RHSA-2021:4122](https://patchblox.com/security/data/fix/linux/rhsa-2021-4122.md) | Nov 3, 2021 |
| Linux | kpatch-patch-4_18_0-305_19_1 RHEL 8 | 0:1-1.el8_4 | [RHSA-2021:4122](https://patchblox.com/security/data/fix/linux/rhsa-2021-4122.md) | Nov 3, 2021 |
| Linux | kpatch-patch-4_18_0-305_3_1 RHEL 8 | 0:1-5.el8_4 | [RHSA-2021:4122](https://patchblox.com/security/data/fix/linux/rhsa-2021-4122.md) | Nov 3, 2021 |
| Linux | kpatch-patch-4_18_0-305_7_1 RHEL 8 | 0:1-4.el8_4 | [RHSA-2021:4122](https://patchblox.com/security/data/fix/linux/rhsa-2021-4122.md) | Nov 3, 2021 |
| Linux | perf RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | perf ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |
| Linux | python3-perf RHEL 8 | 0:4.18.0-305.25.1.el8_4 | [RHSA-2021:4056](https://patchblox.com/security/data/fix/linux/rhsa-2021-4056.md) | Nov 2, 2021 |
| Linux | python3-perf ol 8 | 0:4.18.0-305.25.1.el8_4 | [ELSA-2021-4056](https://patchblox.com/security/data/fix/linux/elsa-2021-4056.md) | Nov 3, 2021 |

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