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Fencer Vulns
medium 5.5

CVE-2022-27950 json

In drivers/hid/hid-elo.c in the Linux kernel before 5.16.11, a memory leak exists for a certain hid_parse error condition.

published 2022-03-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-32437

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

In drivers/hid/hid-elo.c in the Linux kernel before 5.16.11, a memory leak exists for a certain hid_parse error condition.

Patch / fix

  • linux linux_kernel 5.16.11
  • linux Debian 14, Debian 13, Debian 12 5.16.11-1

debian advisories DEBIAN-CVE-2022-27950

  • linux-intel-iotg-5.15 Ubuntu 20.04 LTS 5.15.0-1008.11~20.04.1

ubuntu advisories UBUNTU-CVE-2022-27950

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • perf rhev hypervisor 4.4, RHEL 8.6 EUS 4.18.0-372.95.1.el8_6
  • kernel RHEL 8 4.18.0-425.3.1.el8
  • perf RHEL 8 4.18.0-425.3.1.el8
  • bpftool RHEL 8 4.18.0-425.3.1.el8
  • kernel-core RHEL 8 4.18.0-425.3.1.el8
  • kernel-tools RHEL 8 4.18.0-425.3.1.el8
  • python3-perf RHEL 8 4.18.0-425.3.1.el8
  • kernel-modules RHEL 8 4.18.0-425.3.1.el8

red hat advisories RHSA-2024:1188RHSA-2022:7683RHSA-2022:7444

  • kernel-rt AlmaLinux 8 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-kvm AlmaLinux 8 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-core AlmaLinux 8 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-modules AlmaLinux 8 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-kvm AlmaLinux 8 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-core AlmaLinux 8 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-debug-modules AlmaLinux 8 4.18.0-425.3.1.rt7.213.el8
  • kernel-rt-modules-extra AlmaLinux 8 4.18.0-425.3.1.rt7.213.el8

almalinux advisories ALSA-2022:7444ALSA-2022:7683

  • kernel Rocky Linux 8 4.18.0-425.3.1.el8
  • kernel-rt Rocky Linux 8 4.18.0-425.3.1.rt7.213.el8

rocky linux advisories RLSA-2022:7683RLSA-2022:7444

  • kernel CBL-Mariner 2.0 5.15.37.1-2

azure linux advisories AZL-9209

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-27950 updated cvss 5.1

kernel: memory leak in drivers/hid/hid-elo.c

  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-425.3.1.el8, kernel-debuginfo-common-aarch64 4.18.0-425.3.1.el8, kernel-debuginfo-common-ppc64le 4.18.0-425.3.1.el8
    fixed: vendor fix RHSA-2022:7683
  • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-debuginfo-common-x86_64 4.18.0-372.95.1.el8_6, kernel-debuginfo-common-aarch64 4.18.0-372.95.1.el8_6, kernel-debuginfo-common-ppc64le 4.18.0-372.95.1.el8_6
    fixed: vendor fix RHSA-2024:1188
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-425.3.1.el8, kernel 4.18.0-425.3.1.el8, bpftool 4.18.0-425.3.1.el8, kernel-core 4.18.0-425.3.1.el8, kernel-tools 4.18.0-425.3.1.el8, python3-perf 4.18.0-425.3.1.el8, +15 more
    fixed: vendor fix RHSA-2022:7683
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) perf 4.18.0-372.95.1.el8_6, kernel 4.18.0-372.95.1.el8_6, bpftool 4.18.0-372.95.1.el8_6, kernel-core 4.18.0-372.95.1.el8_6, kernel-tools 4.18.0-372.95.1.el8_6, python3-perf 4.18.0-372.95.1.el8_6, +15 more
    fixed: vendor fix RHSA-2024:1188
  • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-425.3.1.rt7.213.el8, kernel-rt-core 4.18.0-425.3.1.rt7.213.el8, kernel-rt-modules 4.18.0-425.3.1.rt7.213.el8, kernel-rt-debug-core 4.18.0-425.3.1.rt7.213.el8, kernel-rt-debug-modules 4.18.0-425.3.1.rt7.213.el8, kernel-rt-modules-extra 4.18.0-425.3.1.rt7.213.el8, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-425.3.1.rt7.213.el8, kernel-rt-kvm 4.18.0-425.3.1.rt7.213.el8, kernel-rt-core 4.18.0-425.3.1.rt7.213.el8, kernel-rt-modules 4.18.0-425.3.1.rt7.213.el8, kernel-rt-debug-kvm 4.18.0-425.3.1.rt7.213.el8, kernel-rt-debug-core 4.18.0-425.3.1.rt7.213.el8, +4 more
    fixed: vendor fix RHSA-2022:7444
  • Red Hat Virtualization 4 Hypervisor for RHEL 8 perf 4.18.0-372.95.1.el8_6, kernel-debuginfo-common-x86_64 4.18.0-372.95.1.el8_6
    fixed: vendor fix RHSA-2024:1188
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.