A flaw was found in the filelock_init in fs/locks.c function in the Linux kernel.

published 2022-08-29 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15618

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits: 0; none known

A flaw was found in the filelock_init in fs/locks.c function in the Linux kernel. This issue can lead to host memory exhaustion due to memcg not limiting the number of Portable Operating System Interface (POSIX) file locks.

Patch / fix

fixed in 1 distros 3 links 1

linux linux_kernel 5.15

debian red hat almalinux

linux Debian 14, Debian 13, Debian 12 5.15.3-1

debian advisories DEBIAN-CVE-2022-0480

kernel RHEL 9 5.14.0-427.13.1.el9_4
rv RHEL 9 5.14.0-427.13.1.el9_4
perf RHEL 9 5.14.0-427.13.1.el9_4
rtla RHEL 9 5.14.0-427.13.1.el9_4
bpftool RHEL 9 7.3.0-427.13.1.el9_4
libperf RHEL 9 5.14.0-427.13.1.el9_4
kernel-rt RHEL 9 5.14.0-427.13.1.el9_4
kernel-64k RHEL 9 5.14.0-427.13.1.el9_4

red hat advisories RHSA-2024:2394 RHSA-2024:1306 RHSA-2024:1250 RHSA-2024:1304 RHSA-2024:1303

kernel AlmaLinux 9 5.14.0-427.13.1.el9_4
rv AlmaLinux 9 5.14.0-427.13.1.el9_4
perf AlmaLinux 9 5.14.0-427.13.1.el9_4
rtla AlmaLinux 9 5.14.0-427.13.1.el9_4
bpftool AlmaLinux 9 7.3.0-427.13.1.el9_4
libperf AlmaLinux 9 5.14.0-427.13.1.el9_4
kernel-rt AlmaLinux 9 5.14.0-427.13.1.el9_4
kernel-64k AlmaLinux 9 5.14.0-427.13.1.el9_4

almalinux advisories ALSA-2024:2394

git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0f1… commit

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-2022-0480 updated 2026-11-05 cvss 5.5

kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion

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 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
affected: workaround, no fix available
Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-debuginfo-common-s390x 5.14.0-70.93.2.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.93.2.el9_0, kernel-debuginfo-common-aarch64 5.14.0-70.93.2.el9_0, kernel-debuginfo-common-ppc64le 5.14.0-70.93.2.el9_0
fixed: vendor fix RHSA-2024:1250
Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.57.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.57.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.57.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.57.1.el9_2
fixed: vendor fix RHSA-2024:1304
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 AppStream EUS (v.9.0) perf 5.14.0-70.93.2.el9_0, kernel-devel-matched 5.14.0-70.93.2.el9_0, kernel-debug-devel-matched 5.14.0-70.93.2.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.93.2.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.93.2.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.93.2.el9_0, +2 more
fixed: vendor fix RHSA-2024:1250
Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.57.1.el9_2, rtla 5.14.0-284.57.1.el9_2, kernel-devel-matched 5.14.0-284.57.1.el9_2, kernel-64k-devel-matched 5.14.0-284.57.1.el9_2, kernel-debug-devel-matched 5.14.0-284.57.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.57.1.el9_2, +5 more
fixed: vendor fix RHSA-2024:1304
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

show 9 more

Red Hat Enterprise Linux BaseOS EUS (v.9.0) kernel 5.14.0-70.93.2.el9_0, bpftool 5.14.0-70.93.2.el9_0, kernel-core 5.14.0-70.93.2.el9_0, kernel-tools 5.14.0-70.93.2.el9_0, python3-perf 5.14.0-70.93.2.el9_0, kernel-modules 5.14.0-70.93.2.el9_0, +14 more
fixed: vendor fix RHSA-2024:1250
Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.57.1.el9_2, kernel 5.14.0-284.57.1.el9_2, kernel-64k 5.14.0-284.57.1.el9_2, kernel-core 5.14.0-284.57.1.el9_2, kernel-tools 5.14.0-284.57.1.el9_2, python3-perf 5.14.0-284.57.1.el9_2, +28 more
fixed: vendor fix RHSA-2024:1304
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 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
Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-core 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-modules 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-debug-core 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-debug-modules 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-modules-extra 5.14.0-70.93.1.rt21.165.el9_0, +2 more
fixed: vendor fix RHSA-2024:1306
Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-core 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-modules 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-debug-core 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-modules-core 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-debug-modules 5.14.0-284.57.1.rt14.342.el9_2, +4 more
fixed: vendor fix RHSA-2024:1303
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-kvm 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-core 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-modules 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-debug-kvm 5.14.0-70.93.1.rt21.165.el9_0, kernel-rt-debug-core 5.14.0-70.93.1.rt21.165.el9_0, +4 more
fixed: vendor fix RHSA-2024:1306
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-kvm 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-core 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-modules 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-debug-kvm 5.14.0-284.57.1.rt14.342.el9_2, kernel-rt-debug-core 5.14.0-284.57.1.rt14.342.el9_2, +6 more
fixed: vendor fix RHSA-2024:1303
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 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 AppStream EUS (v.9.2) kernel-doc 5.14.0-284.57.1.el9_2
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

0.29% chance of exploitation in the next 30 days, higher than 21% 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

n/a kernel

Classification

Weakness

CWE-770 Allocation of Resources Without Limits or Throttling

Technology feeds

Linux kernel rss critical rss

References

git.kernel.org /pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0f12156dff2862ac54235fc72703f18770769042
patch
lore.kernel.org /linux-mm/20210902215519.AWcuVc3li%25akpm%40linux-foundation.org/
vendor-advisory
github.com /kata-containers/kata-containers/issues/3373
issue-tracking, third-party-advisory
bugzilla.redhat.com /show_bug.cgi?id=2049700
issue-tracking, third-party-advisory
access.redhat.com /security/cve/CVE-2022-0480
third-party-advisory
ubuntu.com /security/CVE-2022-0480
third-party-advisory

Sources

CVE List CVE-2022-0480
NVD CVE-2022-0480

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