CVE-2022-4379: A use-after-free vulnerability was found in __nfs42_ssc_open() in fs/nfs/nfs4file.c in the Linux kernel.

Patch / fix

fixed in 1 distros 9 links 2

linux linux_kernel 5.10.177, 5.15.105, 6.1.3

debian ubuntu red hat suse opensuse almalinux rocky linux azure linux arch linux

linux Debian 14, Debian 13, Debian 12 6.1.4-1

debian advisories DEBIAN-CVE-2022-4379

linux Ubuntu 22.04 LTS 5.15.0-67.74
linux-aws Ubuntu 22.04 LTS 5.15.0-1031.35
linux-gcp Ubuntu 22.04 LTS 5.15.0-1030.37
linux-gke Ubuntu 22.04 LTS 5.15.0-1028.33
linux-ibm Ubuntu 22.04 LTS 5.15.0-1026.29
linux-kvm Ubuntu 22.04 LTS 5.15.0-1029.34
linux-azure Ubuntu 22.04 LTS 5.15.0-1034.41
linux-gkeop Ubuntu 22.04 LTS 5.15.0-1016.21

ubuntu advisories UBUNTU-CVE-2022-4379

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

kpatch-patch-5_14_0-162_6_1 RHEL 9 1-2.el9_1
kpatch-patch-5_14_0-162_12_1 RHEL 9 1-1.el9_1
kernel RHEL 9 5.14.0-162.18.1.el9_1
perf RHEL 9 5.14.0-162.18.1.el9_1
bpftool RHEL 9 5.14.0-162.18.1.el9_1
kernel-core RHEL 9 5.14.0-162.18.1.el9_1
kernel-tools RHEL 9 5.14.0-162.18.1.el9_1
python3-perf RHEL 9 5.14.0-162.18.1.el9_1

red hat advisories RHSA-2023:1435 RHSA-2023:1202 RHSA-2023:1203 RHSA-2023:1008 RHSA-2023:0951 RHSA-2023:0979

dtb-aarch64 openSUSE Leap 15.4 5.14.21-150400.24.41.1
kernel-64kb SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 5.14.21-150400.24.41.1
kernel-syms SLE Module for Development Tools 15 SP4, openSUSE Leap 15.4 5.14.21-150400.24.41.1
kernel-obs-qa openSUSE Leap 15.4 5.14.21-150400.24.41.1
kernel-source SLE Module for Development Tools 15 SP4, SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 5.14.21-150400.24.41.1
kernel-default SLE Workstation Extension 15 SP4, SLE Module for Legacy 15 SP4, SLE Module for Basesystem 15 SP4 +5 more 5.14.21-150400.24.41.1
kernel-kvmsmall openSUSE Leap 15.4 5.14.21-150400.24.41.1
kernel-zfcpdump SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 5.14.21-150400.24.41.1

suse advisories SUSE-SU-2023:0331-1 SUSE-SU-2023:0320-1 SUSE-SU-2023:0280-1 SUSE-SU-2023:0277-1 SUSE-SU-2023:0273-1 SUSE-SU-2023:0270-1

kernel-source openSUSE Tumbleweed 6.1.0-1.1
kernel-source openSUSE Tumbleweed 6.6.17-1.1

opensuse advisories openSUSE-SU-2024:12579-1 openSUSE-SU-2024:13704-1

kernel AlmaLinux 9 5.14.0-162.18.1.el9_1
perf AlmaLinux 9 5.14.0-162.18.1.el9_1
bpftool AlmaLinux 9 5.14.0-162.18.1.el9_1
kernel-core AlmaLinux 9 5.14.0-162.18.1.el9_1
kernel-tools AlmaLinux 9 5.14.0-162.18.1.el9_1
python3-perf AlmaLinux 9 5.14.0-162.18.1.el9_1
kernel-modules AlmaLinux 9 5.14.0-162.18.1.el9_1
kernel-zfcpdump AlmaLinux 9 5.14.0-162.18.1.el9_1

almalinux advisories ALSA-2023:0951 ALSA-2023:0979

kernel Rocky Linux 9 5.14.0-162.18.1.el9_1.cloud
kernel-rt Rocky Linux 9 5.14.0-162.18.1.rt21.181.el9_1

rocky linux advisories RXSA-2023:0951 RLSA-2023:0979

kernel CBL-Mariner 2.0 5.15.107.1-2

azure linux advisories AZL-12950

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

linux-lts Arch Linux 6.2-1
linux-hardened Arch Linux 6.2-1
linux-zen Arch Linux 6.2-1
linux Arch Linux 6.2-1

arch linux advisories AVG-2834 AVG-2835 AVG-2836 AVG-2837

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-2022-4379 updated 2026-11-04 cvss 7.5

kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack

Red Hat CodeReady Linux Builder (v. 9) kernel-debuginfo-common-s390x 5.14.0-162.18.1.el9_1, kernel-debuginfo-common-x86_64 5.14.0-162.18.1.el9_1, kernel-debuginfo-common-aarch64 5.14.0-162.18.1.el9_1, kernel-debuginfo-common-ppc64le 5.14.0-162.18.1.el9_1
fixed: vendor fix RHSA-2023:0951
Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-debuginfo-common-s390x 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-aarch64 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-ppc64le 5.14.0-70.49.1.el9_0
fixed: vendor fix RHSA-2023:1202
Red Hat Enterprise Linux AppStream (v. 9) perf 5.14.0-162.18.1.el9_1, kernel-devel-matched 5.14.0-162.18.1.el9_1, kernel-debug-devel-matched 5.14.0-162.18.1.el9_1, kernel-debuginfo-common-s390x 5.14.0-162.18.1.el9_1, kernel-zfcpdump-devel-matched 5.14.0-162.18.1.el9_1, kernel-debuginfo-common-x86_64 5.14.0-162.18.1.el9_1, +2 more
fixed: vendor fix RHSA-2023:0951
Red Hat Enterprise Linux AppStream EUS (v.9.0) perf 5.14.0-70.49.1.el9_0, kernel-devel-matched 5.14.0-70.49.1.el9_0, kernel-debug-devel-matched 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.49.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.49.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.49.1.el9_0, +2 more
fixed: vendor fix RHSA-2023:1202
Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-162.18.1.el9_1, bpftool 5.14.0-162.18.1.el9_1, kernel-core 5.14.0-162.18.1.el9_1, kernel-tools 5.14.0-162.18.1.el9_1, python3-perf 5.14.0-162.18.1.el9_1, kernel-modules 5.14.0-162.18.1.el9_1, +16 more
fixed: vendor fix RHSA-2023:0951
Red Hat Enterprise Linux BaseOS EUS (v.9.0) kernel 5.14.0-70.49.1.el9_0, bpftool 5.14.0-70.49.1.el9_0, kernel-core 5.14.0-70.49.1.el9_0, kernel-tools 5.14.0-70.49.1.el9_0, python3-perf 5.14.0-70.49.1.el9_0, kernel-modules 5.14.0-70.49.1.el9_0, +19 more
fixed: vendor fix RHSA-2023:1202
Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-core 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-modules 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-debug-core 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-debug-modules 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-modules-extra 5.14.0-162.18.1.rt21.181.el9_1, +2 more
fixed: vendor fix RHSA-2023:0979
Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-core 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-modules 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-core 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-modules 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-modules-extra 5.14.0-70.49.1.rt21.120.el9_0, +2 more
fixed: vendor fix RHSA-2023:1203

show 3 more

Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-kvm 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-core 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-modules 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-debug-kvm 5.14.0-162.18.1.rt21.181.el9_1, kernel-rt-debug-core 5.14.0-162.18.1.rt21.181.el9_1, +4 more
fixed: vendor fix RHSA-2023:0979
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-kvm 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-core 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-modules 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-kvm 5.14.0-70.49.1.rt21.120.el9_0, kernel-rt-debug-core 5.14.0-70.49.1.rt21.120.el9_0, +4 more
fixed: vendor fix RHSA-2023:1203
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 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 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: yes
Technical impact: partial
Assessed: 19 mo ago (2025-04-08)

Exploit prediction

6.63% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

n/a Linux kernel

Classification

Weakness

CWE-416 Use After Free

Technology feeds

Linux kernel rss critical rss

References

git.kernel.org /pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=aeba12b26c79fc35e07e511f692a8907037d95da
patch, vendor-advisory
git.kernel.org /pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=75333d48f92256a0dec91dbf07835e804fc411c0
patch, vendor-advisory
lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/RAVD6JIILAVSRHZ4VXSV3RAAGUXKVXZA/
vendor-advisory, mailing-list, third-party-advisory
lists.fedoraproject.org /archives/list/package-announce%40lists.fedoraproject.org/message/LECFVUHKIRBV5JJBE3KQCLGKNYJPBRCN/
vendor-advisory, mailing-list, third-party-advisory
seclists.org /oss-sec/2022/q4/185
mailing-list, third-party-advisory
lists.debian.org /debian-lts-announce/2023/05/msg00005.html
mailing-list, third-party-advisory
security.netapp.com /advisory/ntap-20230223-0004/

Sources

CVE List CVE-2022-4379
NVD CVE-2022-4379

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.

Summary