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Fencer Vulns
medium 6.4

CVE-2022-44032 json

An issue was discovered in the Linux kernel through 6.0.6.

published 2022-10-30 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-46994

cvss
6.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

An issue was discovered in the Linux kernel through 6.0.6. drivers/char/pcmcia/cm4000_cs.c has a race condition and resultant use-after-free if a physically proximate attacker removes a PCMCIA device while calling open(), aka a race condition between cmm_open() and cm4000_detach().

Patch / fix

  • kernel-ec2 SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.138.1
  • kernel-xen SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.138.1
  • kernel-syms SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.138.1
  • kernel-trace SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.138.1
  • kernel-source SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.138.1
  • kernel-default SLES 11 SP4 LTSS EXTREME CORE 3.0.101-108.138.1

suse advisories SUSE-SU-2023:0416-1

  • kernel-source openSUSE Tumbleweed 6.0.6-1.1
  • kernel-source openSUSE Tumbleweed 6.6.17-1.1

opensuse advisories openSUSE-SU-2024:12470-1openSUSE-SU-2024:13704-1

  • kernel CBL-Mariner 2.0 5.15.122.1-2

azure linux advisories AZL-11380

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-2022-44032 updated cvss 6.4

Kernel: Race between cmm_open() and cm4000_detach() result in UAF

  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.4 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 6.4 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 6.4 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • linux linux_kernel

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
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.