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Fencer Vulns
medium 5.5

CVE-2022-49011 json

hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new()

published 2024-10-21 2 y ago modified 2026-06-17 4 mo ago also EUVD-2022-53895

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new()

As comment of pci_get_domain_bus_and_slot() says, it returns a pci device with refcount increment, when finish using it, the caller must decrement the reference count by calling pci_dev_put(). So call it after using to avoid refcount leak.

Patch / fix

  • Linux Linux 4.9.335, 4.14.301, 4.19.268, 5.4.226, 5.10.158, 5.15.82, 6.0.12, 6.1
  • linux Debian 14, Debian 13, Debian 12 6.0.12-1

debian advisories DEBIAN-CVE-2022-49011

  • linux Ubuntu 18.04 LTS 4.15.0-206.217
  • linux Ubuntu 20.04 LTS 5.4.0-144.161
  • linux Ubuntu 22.04 LTS 5.15.0-67.74
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1151.164
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1097.105
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1031.35
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1101.110
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1030.37

ubuntu advisories UBUNTU-CVE-2022-49011

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

  • kernel-rt RHEL 8 4.18.0-553.52.1.rt7.393.el8_10
  • kernel-rt-kvm RHEL 8 4.18.0-553.52.1.rt7.393.el8_10
  • kernel-rt-core RHEL 8 4.18.0-553.52.1.rt7.393.el8_10
  • kernel-rt-modules RHEL 8 4.18.0-553.52.1.rt7.393.el8_10
  • kernel-rt-debug-kvm RHEL 8 4.18.0-553.52.1.rt7.393.el8_10
  • kernel-rt-debug-core RHEL 8 4.18.0-553.52.1.rt7.393.el8_10
  • kernel-rt-debug-modules RHEL 8 4.18.0-553.52.1.rt7.393.el8_10
  • kernel-rt-modules-extra RHEL 8 4.18.0-553.52.1.rt7.393.el8_10

red hat advisories RHSA-2025:7532RHSA-2025:7531RHSA-2024:2394

  • kernel-64kb SLE Module for Basesystem 15 SP5 5.14.21-150500.55.88.1
  • kernel-syms SLE Module for Development Tools 15 SP5 5.14.21-150500.55.88.1
  • kernel-source SLE Module for Development Tools 15 SP5, SLE Module for Basesystem 15 SP5 5.14.21-150500.55.88.1
  • kernel-default SLE Module for Legacy 15 SP5, SLE Module for Basesystem 15 SP5, SLE Micro 5.5 +2 more 5.14.21-150500.55.88.1
  • kernel-zfcpdump SLE Module for Basesystem 15 SP5 5.14.21-150500.55.88.1
  • kernel-obs-build SLE Module for Development Tools 15 SP5 5.14.21-150500.55.88.1
  • kernel-default-base SLE Module for Basesystem 15 SP5, SLE Micro 5.5 5.14.21-150500.55.88.1.150500.6.39.4
  • kernel-rt SLE Micro 5.2, SLE Micro 5.1 5.3.18-150300.194.1

suse advisories SUSE-SU-2025:0034-1SUSE-SU-2024:4364-1SUSE-SU-2024:4317-1SUSE-SU-2024:4313-1SUSE-SU-2024:4131-1SUSE-SU-2024:4100-1

  • kernel AlmaLinux 8 4.18.0-553.52.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.52.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.52.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.52.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.52.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.52.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.52.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.52.1.el8_10

almalinux advisories ALSA-2025:7531ALSA-2025:7532

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-2022-49011 updated cvss 7.1

kernel: hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new()

  • 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
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-427.13.1.el9_4, perf 5.14.0-427.13.1.el9_4, rtla 5.14.0-427.13.1.el9_4, kernel-devel-matched 5.14.0-427.13.1.el9_4, kernel-64k-devel-matched 5.14.0-427.13.1.el9_4, kernel-debug-devel-matched 5.14.0-427.13.1.el9_4, +6 more
    fixed: vendor fix RHSA-2024:2394
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.52.1.el8_10, kernel 4.18.0-553.52.1.el8_10, bpftool 4.18.0-553.52.1.el8_10, kernel-core 4.18.0-553.52.1.el8_10, kernel-tools 4.18.0-553.52.1.el8_10, python3-perf 4.18.0-553.52.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:7531
  • Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.3.0-427.13.1.el9_4, kernel 5.14.0-427.13.1.el9_4, kernel-64k 5.14.0-427.13.1.el9_4, kernel-core 5.14.0-427.13.1.el9_4, kernel-tools 5.14.0-427.13.1.el9_4, python3-perf 5.14.0-427.13.1.el9_4, +28 more
    fixed: vendor fix RHSA-2024:2394
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.52.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.52.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.52.1.el8_10
    fixed: vendor fix RHSA-2025:7531
  • Red Hat Enterprise Linux CRB (v. 9) libperf 5.14.0-427.13.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.13.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.13.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.13.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.13.1.el9_4
    fixed: vendor fix RHSA-2024:2394
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-kvm 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-core 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-modules 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-debug-kvm 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-debug-core 4.18.0-553.52.1.rt7.393.el8_10, +4 more
    fixed: vendor fix RHSA-2025:7532
  • Red Hat Enterprise Linux NFV (v. 9) kernel-rt 5.14.0-427.13.1.el9_4, kernel-rt-kvm 5.14.0-427.13.1.el9_4, kernel-rt-core 5.14.0-427.13.1.el9_4, kernel-rt-modules 5.14.0-427.13.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.13.1.el9_4, kernel-rt-debug-core 5.14.0-427.13.1.el9_4, +6 more
    fixed: vendor fix RHSA-2024:2394
show 2 more
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-core 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-modules 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-debug-core 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-debug-modules 4.18.0-553.52.1.rt7.393.el8_10, kernel-rt-modules-extra 4.18.0-553.52.1.rt7.393.el8_10, +2 more
    fixed: vendor fix RHSA-2025:7532
  • Red Hat Enterprise Linux RT (v. 9) kernel-rt 5.14.0-427.13.1.el9_4, kernel-rt-core 5.14.0-427.13.1.el9_4, kernel-rt-modules 5.14.0-427.13.1.el9_4, kernel-rt-debug-core 5.14.0-427.13.1.el9_4, kernel-rt-modules-core 5.14.0-427.13.1.el9_4, kernel-rt-debug-modules 5.14.0-427.13.1.el9_4, +4 more
    fixed: vendor fix RHSA-2024:2394

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
partial
Assessed
2 y ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% 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

Affected products

  • Linux Linux

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.