Skip to content
Fencer Intel
high 8.6

CVE-2025-22004 json

net: atm: fix use after free in lec_send()

published last yr. modified 3mo ago also EUVD-2025-9593

cvss
8.6
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 30%
public exploits
0
none known

Summary

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

net: atm: fix use after free in lec_send()

The ->send() operation frees skb so save the length before calling ->send() to avoid a use after free.

Patch / fix

  • Linux Linux 5.4.292, 5.10.236, 5.15.180, 6.1.132, 6.6.85, 6.12.21, 6.13.9, 6.14
  • linux Debian 12 6.1.133-1
  • linux Debian 14, Debian 13 6.12.21-1

debian advisories DEBIAN-CVE-2025-22004

  • linux Ubuntu 22.04 LTS 5.15.0-142.152
  • linux Ubuntu 24.04 LTS 6.8.0-84.84
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1086.93
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1039.41
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1085.94
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1040.42
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1083.89
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1036.40

ubuntu advisories UBUNTU-CVE-2025-22004

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 RHEL 8 4.18.0-553.62.1.el8_10
  • perf RHEL 8 4.18.0-553.62.1.el8_10
  • bpftool RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-core RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-tools RHEL 8 4.18.0-553.62.1.el8_10
  • python3-perf RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-modules RHEL 8 4.18.0-553.62.1.el8_10
  • kernel-zfcpdump RHEL 8 4.18.0-553.62.1.el8_10

red hat advisories RHSA-2025:13061RHSA-2025:12623RHSA-2025:12238RHSA-2025:11571RHSA-2025:11572RHSA-2025:11570

  • kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.20.3.1
  • kernel-syms-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.20.3.1
  • kernel-source-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.20.3.1
  • kernel-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.39.1
  • kernel-syms-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.39.1
  • kernel-rt_debug Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.39.1
  • kernel-source-rt Real Time Module 15 SP6, openSUSE Leap 15.6 6.4.0-150600.10.39.1
  • kernel-coco SLE Module for Confidential Computing Technical Preview 15 SP6 6.4.0-15061.21.coco15sp6.1

suse advisories SUSE-SU-2025:02099-1SUSE-SU-2025:01967-1SUSE-SU-2025:01964-1SUSE-SU-2025:01919-1SUSE-SU-2025:01707-1SUSE-SU-2025:20344-1

  • kernel AlmaLinux 8 4.18.0-553.62.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.62.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.62.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.62.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.62.1.el8_10

almalinux advisories ALSA-2025:11298ALSA-2025:11299ALSA-2025:10379

  • kernel Rocky Linux 9 5.14.0-570.25.1.el9_6
  • kernel-rt Rocky Linux 8 4.18.0-553.62.1.rt7.403.el8_10
  • kernel Rocky Linux 8 4.18.0-553.62.1.el8_10

rocky linux advisories RLSA-2025:10379RLSA-2025:11299RLSA-2025:11298

  • kernel CBL-Mariner 2.0 5.15.180.1-1
  • kernel Azure Linux 3.0 6.6.85.1-2

azure linux advisories AZL-59629AZL-59658

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

Is CVE-2025-22004 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2025-22004 updated cvss 7.0

kernel: net: atm: fix use after free in lec_send()

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: 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: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.77.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.77.1.el9_4
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-570.25.1.el9_6, perf 5.14.0-570.25.1.el9_6, rtla 5.14.0-570.25.1.el9_6, python3-perf 5.14.0-570.25.1.el9_6, kernel-devel-matched 5.14.0-570.25.1.el9_6, kernel-64k-devel-matched 5.14.0-570.25.1.el9_6, +7 more
    fixed: vendor fix RHSA-2025:10379
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.138.1.el9_0, kernel-devel-matched 5.14.0-70.138.1.el9_0, kernel-debug-devel-matched 5.14.0-70.138.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.138.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.138.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.138.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:10830
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.126.1.el9_2, rtla 5.14.0-284.126.1.el9_2, kernel-devel-matched 5.14.0-284.126.1.el9_2, kernel-64k-devel-matched 5.14.0-284.126.1.el9_2, kernel-debug-devel-matched 5.14.0-284.126.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.126.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:11571
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.77.1.el9_4, perf 5.14.0-427.77.1.el9_4, rtla 5.14.0-427.77.1.el9_4, kernel-devel-matched 5.14.0-427.77.1.el9_4, kernel-64k-devel-matched 5.14.0-427.77.1.el9_4, kernel-debug-devel-matched 5.14.0-427.77.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.62.1.el8_10, kernel 4.18.0-553.62.1.el8_10, bpftool 4.18.0-553.62.1.el8_10, kernel-core 4.18.0-553.62.1.el8_10, kernel-tools 4.18.0-553.62.1.el8_10, python3-perf 4.18.0-553.62.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:11298
show 26 more
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-570.25.1.el9_6, kernel-64k 5.14.0-570.25.1.el9_6, kernel-core 5.14.0-570.25.1.el9_6, kernel-tools 5.14.0-570.25.1.el9_6, kernel-modules 5.14.0-570.25.1.el9_6, kernel-64k-core 5.14.0-570.25.1.el9_6, +27 more
    fixed: vendor fix RHSA-2025:10379
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.162.1.el8_2, kernel 4.18.0-193.162.1.el8_2, bpftool 4.18.0-193.162.1.el8_2, kernel-core 4.18.0-193.162.1.el8_2, kernel-tools 4.18.0-193.162.1.el8_2, python3-perf 4.18.0-193.162.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:12623
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.165.1.el8_4, kernel 4.18.0-305.165.1.el8_4, bpftool 4.18.0-305.165.1.el8_4, kernel-core 4.18.0-305.165.1.el8_4, kernel-tools 4.18.0-305.165.1.el8_4, python3-perf 4.18.0-305.165.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:12238
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.153.1.el8_6, kernel 4.18.0-372.153.1.el8_6, bpftool 4.18.0-372.153.1.el8_6, kernel-core 4.18.0-372.153.1.el8_6, kernel-tools 4.18.0-372.153.1.el8_6, python3-perf 4.18.0-372.153.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.153.1.el8_6, kernel 4.18.0-372.153.1.el8_6, bpftool 4.18.0-372.153.1.el8_6, kernel-core 4.18.0-372.153.1.el8_6, kernel-tools 4.18.0-372.153.1.el8_6, python3-perf 4.18.0-372.153.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:11570
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.104.1.el8_8, kernel 4.18.0-477.104.1.el8_8, bpftool 4.18.0-477.104.1.el8_8, kernel-core 4.18.0-477.104.1.el8_8, kernel-tools 4.18.0-477.104.1.el8_8, python3-perf 4.18.0-477.104.1.el8_8, +9 more
    fixed: vendor fix RHSA-2025:13061
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.138.1.el9_0, bpftool 5.14.0-70.138.1.el9_0, kernel-core 5.14.0-70.138.1.el9_0, kernel-tools 5.14.0-70.138.1.el9_0, python3-perf 5.14.0-70.138.1.el9_0, kernel-modules 5.14.0-70.138.1.el9_0, +14 more
    fixed: vendor fix RHSA-2025:10830
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.126.1.el9_2, kernel 5.14.0-284.126.1.el9_2, kernel-64k 5.14.0-284.126.1.el9_2, kernel-core 5.14.0-284.126.1.el9_2, kernel-tools 5.14.0-284.126.1.el9_2, python3-perf 5.14.0-284.126.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:11571
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.77.1.el9_4, kernel 5.14.0-427.77.1.el9_4, kernel-64k 5.14.0-427.77.1.el9_4, kernel-core 5.14.0-427.77.1.el9_4, kernel-tools 5.14.0-427.77.1.el9_4, python3-perf 5.14.0-427.77.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.165.1.el8_4, kernel 4.18.0-305.165.1.el8_4, bpftool 4.18.0-305.165.1.el8_4, kernel-core 4.18.0-305.165.1.el8_4, kernel-tools 4.18.0-305.165.1.el8_4, python3-perf 4.18.0-305.165.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:12238
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.153.1.el8_6, kernel 4.18.0-372.153.1.el8_6, bpftool 4.18.0-372.153.1.el8_6, kernel-core 4.18.0-372.153.1.el8_6, kernel-tools 4.18.0-372.153.1.el8_6, python3-perf 4.18.0-372.153.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:11570
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.104.1.el8_8, kernel 4.18.0-477.104.1.el8_8, bpftool 4.18.0-477.104.1.el8_8, kernel-core 4.18.0-477.104.1.el8_8, kernel-tools 4.18.0-477.104.1.el8_8, python3-perf 4.18.0-477.104.1.el8_8, +8 more
    fixed: vendor fix RHSA-2025:13061
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-570.25.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.25.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.25.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.25.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.25.1.el9_6
    fixed: vendor fix RHSA-2025:10379
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.62.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.62.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.62.1.el8_10
    fixed: vendor fix RHSA-2025:11298
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.136.1.rt56.1288.el7, kernel-rt-trace 3.10.0-1160.136.1.rt56.1288.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.136.1.rt56.1288.el7
    fixed: vendor fix RHSA-2025:11375
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-kvm 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-kvm 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-core 4.18.0-553.62.1.rt7.403.el8_10, +4 more
    fixed: vendor fix RHSA-2025:11299
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-kvm 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-core 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-modules 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-debug-kvm 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-debug-core 5.14.0-70.138.1.rt21.210.el9_0, +4 more
    fixed: vendor fix RHSA-2025:10829
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-570.25.1.el9_6, kernel-rt-64k 5.14.0-570.25.1.el9_6, kernel-rt-core 5.14.0-570.25.1.el9_6, kernel-rt-modules 5.14.0-570.25.1.el9_6, kernel-rt-64k-core 5.14.0-570.25.1.el9_6, kernel-rt-debug-core 5.14.0-570.25.1.el9_6, +14 more
    fixed: vendor fix RHSA-2025:10379
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-core 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-modules 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-debug-core 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-debug-modules 5.14.0-70.138.1.rt21.210.el9_0, kernel-rt-modules-extra 5.14.0-70.138.1.rt21.210.el9_0, +2 more
    fixed: vendor fix RHSA-2025:10829
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-modules 5.14.0-284.126.1.rt14.411.el9_2, +4 more
    fixed: vendor fix RHSA-2025:11572
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.77.1.el9_4, kernel-rt-core 5.14.0-427.77.1.el9_4, kernel-rt-modules 5.14.0-427.77.1.el9_4, kernel-rt-debug-core 5.14.0-427.77.1.el9_4, kernel-rt-modules-core 5.14.0-427.77.1.el9_4, kernel-rt-debug-modules 5.14.0-427.77.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-570.25.1.el9_6, kernel-rt-kvm 5.14.0-570.25.1.el9_6, kernel-rt-core 5.14.0-570.25.1.el9_6, kernel-rt-modules 5.14.0-570.25.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.25.1.el9_6, kernel-rt-debug-core 5.14.0-570.25.1.el9_6, +6 more
    fixed: vendor fix RHSA-2025:10379
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-kvm 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-core 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-modules 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-kvm 5.14.0-284.126.1.rt14.411.el9_2, kernel-rt-debug-core 5.14.0-284.126.1.rt14.411.el9_2, +6 more
    fixed: vendor fix RHSA-2025:11572
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.77.1.el9_4, kernel-rt-kvm 5.14.0-427.77.1.el9_4, kernel-rt-core 5.14.0-427.77.1.el9_4, kernel-rt-modules 5.14.0-427.77.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.77.1.el9_4, kernel-rt-debug-core 5.14.0-427.77.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:11245
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-core 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-debug-modules 4.18.0-553.62.1.rt7.403.el8_10, kernel-rt-modules-extra 4.18.0-553.62.1.rt7.403.el8_10, +2 more
    fixed: vendor fix RHSA-2025:11299
  • Red Hat Enterprise Linux Server (v. 7 ELS) perf 3.10.0-1160.136.1.el7, kernel 3.10.0-1160.136.1.el7, bpftool 3.10.0-1160.136.1.el7, python-perf 3.10.0-1160.136.1.el7, kernel-kdump 3.10.0-1160.136.1.el7, kernel-tools 3.10.0-1160.136.1.el7, +7 more Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debuginfo-common-ppc64 3.10.0-1160.136.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.136.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.136.1.el7
    fixed: vendor fix RHSA-2025:11358
  • Red Hat Enterprise Linux 10 kernel
    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
last yr.

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel 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.