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Fencer Vulns
high 7.8

CVE-2022-50367 json

fs: fix UAF/GPF bug in nilfs_mdt_destroy

published 2025-09-17 13 mo ago modified 2026-08-05 3 mo ago also EUVD-2022-55631

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 13%
public exploits
0
none known

Summary

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

fs: fix UAF/GPF bug in nilfs_mdt_destroy

In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i_private uninitialized. Then nilfs_is_metadata_file_inode() returns true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(), which frees the uninitialized inode->i_private and leads to crashes(e.g., UAF/GPF).

Fix this by moving security_inode_alloc just prior to this_cpu_inc(nr_inodes)

Patch / fix

  • Linux Linux 4.9.331, 4.14.296, 4.19.262, 5.4.218, 5.10.148, 5.15.73, 5.19.15, 6.0.1, 6.1
  • linux Debian 14, Debian 13, Debian 12 6.0.2-1

debian advisories DEBIAN-CVE-2022-50367

  • linux Ubuntu 18.04 LTS 4.15.0-197.208
  • linux Ubuntu 20.04 LTS 5.4.0-132.148
  • linux Ubuntu 22.04 LTS 5.15.0-53.59
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1143.155
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1089.97
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1023.27
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1093.102
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1022.29

ubuntu advisories UBUNTU-CVE-2022-50367

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 9 5.14.0-611.7.1.el9_7
  • rv RHEL 9 5.14.0-611.7.1.el9_7
  • perf RHEL 9 5.14.0-611.7.1.el9_7
  • rtla RHEL 9 5.14.0-611.7.1.el9_7
  • libperf RHEL 9 5.14.0-611.7.1.el9_7
  • kernel-rt RHEL 9 5.14.0-611.7.1.el9_7
  • kernel-64k RHEL 9 5.14.0-611.7.1.el9_7
  • kernel-core RHEL 9 5.14.0-611.7.1.el9_7

red hat advisories RHSA-2025:23960RHSA-2025:23947RHSA-2025:23445RHSA-2025:22752RHSA-2025:21136RHSA-2025:21128

  • kernel-rt SLE Micro 5.5 5.14.21-150500.13.109.1
  • kernel-source-rt SLE Micro 5.5 5.14.21-150500.13.109.1
  • kernel-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.133.1
  • kernel-source-rt SLE Micro 5.4, SLE Micro 5.3 5.14.21-150400.15.133.1
  • kernel-64kb SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS, SLE High Performance Computing 15 SP4-ESPOS 5.14.21-150400.24.179.1
  • kernel-syms SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 5.14.21-150400.24.179.1
  • kernel-source SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +3 more 5.14.21-150400.24.179.1
  • kernel-default SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Micro 5.4 +7 more 5.14.21-150400.24.179.1

suse advisories SUSE-SU-2026:0200-1SUSE-SU-2026:0155-1SUSE-SU-2026:0154-1SUSE-SU-2025:4189-1SUSE-SU-2025:3761-1SUSE-SU-2025:3716-1

  • kernel AlmaLinux 8 4.18.0-553.83.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.83.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.83.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.83.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.83.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.83.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.83.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.83.1.el8_10

almalinux advisories ALSA-2025:19931ALSA-2025:19932ALSA-2025:19409

  • kernel-rt Rocky Linux 8 4.18.0-553.83.1.rt7.424.el8_10
  • kernel Rocky Linux 8 4.18.0-553.83.1.el8_10

rocky linux advisories RLSA-2025:19932RLSA-2025:19931

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-2022-50367 updated cvss 7.0

kernel: fs: fix UAF/GPF bug in nilfs_mdt_destroy

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 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.9.4) libperf 5.14.0-427.97.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.97.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.97.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.97.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.97.1.el9_4
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.7.1.el9_7, rv 5.14.0-570.60.1.el9_6, perf 5.14.0-611.7.1.el9_7, rtla 5.14.0-611.7.1.el9_7, perf 5.14.0-570.60.1.el9_6, rtla 5.14.0-570.60.1.el9_6, +20 more
    fixed: vendor fix RHSA-2025:19409
  • Red Hat Enterprise Linux AppStream E4S (v.9.0) perf 5.14.0-70.153.1.el9_0, kernel-devel-matched 5.14.0-70.153.1.el9_0, kernel-debug-devel-matched 5.14.0-70.153.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.153.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.153.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.153.1.el9_0, +2 more
    fixed: vendor fix RHSA-2025:21091
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) perf 5.14.0-284.146.1.el9_2, rtla 5.14.0-284.146.1.el9_2, kernel-devel-matched 5.14.0-284.146.1.el9_2, kernel-64k-devel-matched 5.14.0-284.146.1.el9_2, kernel-debug-devel-matched 5.14.0-284.146.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.146.1.el9_2, +5 more
    fixed: vendor fix RHSA-2025:21051
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.97.1.el9_4, perf 5.14.0-427.97.1.el9_4, rtla 5.14.0-427.97.1.el9_4, kernel-devel-matched 5.14.0-427.97.1.el9_4, kernel-64k-devel-matched 5.14.0-427.97.1.el9_4, kernel-debug-devel-matched 5.14.0-427.97.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.83.1.el8_10, kernel 4.18.0-553.83.1.el8_10, bpftool 4.18.0-553.83.1.el8_10, kernel-core 4.18.0-553.83.1.el8_10, kernel-tools 4.18.0-553.83.1.el8_10, python3-perf 4.18.0-553.83.1.el8_10, +15 more
    fixed: vendor fix RHSA-2025:19931
show 26 more
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.7.1.el9_7, kernel 5.14.0-570.60.1.el9_6, kernel-64k 5.14.0-611.7.1.el9_7, kernel-64k 5.14.0-570.60.1.el9_6, kernel-core 5.14.0-611.7.1.el9_7, kernel-core 5.14.0-570.60.1.el9_6, +60 more
    fixed: vendor fix RHSA-2025:19409
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) perf 4.18.0-193.178.1.el8_2, kernel 4.18.0-193.178.1.el8_2, bpftool 4.18.0-193.178.1.el8_2, kernel-core 4.18.0-193.178.1.el8_2, kernel-tools 4.18.0-193.178.1.el8_2, python3-perf 4.18.0-193.178.1.el8_2, +8 more
    fixed: vendor fix RHSA-2025:23445
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4) perf 4.18.0-305.179.1.el8_4, kernel 4.18.0-305.179.1.el8_4, bpftool 4.18.0-305.179.1.el8_4, kernel-core 4.18.0-305.179.1.el8_4, kernel-tools 4.18.0-305.179.1.el8_4, python3-perf 4.18.0-305.179.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:22752
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6) perf 4.18.0-372.168.1.el8_6, kernel 4.18.0-372.168.1.el8_6, bpftool 4.18.0-372.168.1.el8_6, kernel-core 4.18.0-372.168.1.el8_6, kernel-tools 4.18.0-372.168.1.el8_6, python3-perf 4.18.0-372.168.1.el8_6, +8 more Red Hat Enterprise Linux BaseOS E4S (v.8.6) perf 4.18.0-372.168.1.el8_6, kernel 4.18.0-372.168.1.el8_6, bpftool 4.18.0-372.168.1.el8_6, kernel-core 4.18.0-372.168.1.el8_6, kernel-tools 4.18.0-372.168.1.el8_6, python3-perf 4.18.0-372.168.1.el8_6, +15 more
    fixed: vendor fix RHSA-2025:21084
  • Red Hat Enterprise Linux BaseOS E4S (v.8.8) perf 4.18.0-477.118.1.el8_8, kernel 4.18.0-477.118.1.el8_8, bpftool 4.18.0-477.118.1.el8_8, kernel-core 4.18.0-477.118.1.el8_8, kernel-tools 4.18.0-477.118.1.el8_8, python3-perf 4.18.0-477.118.1.el8_8, +9 more
    fixed: vendor fix RHSA-2025:21083
  • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kernel 5.14.0-70.153.1.el9_0, bpftool 5.14.0-70.153.1.el9_0, kernel-core 5.14.0-70.153.1.el9_0, kernel-tools 5.14.0-70.153.1.el9_0, python3-perf 5.14.0-70.153.1.el9_0, kernel-modules 5.14.0-70.153.1.el9_0, +14 more
    fixed: vendor fix RHSA-2025:21091
  • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool 7.0.0-284.146.1.el9_2, kernel 5.14.0-284.146.1.el9_2, kernel-64k 5.14.0-284.146.1.el9_2, kernel-core 5.14.0-284.146.1.el9_2, kernel-tools 5.14.0-284.146.1.el9_2, python3-perf 5.14.0-284.146.1.el9_2, +28 more
    fixed: vendor fix RHSA-2025:21051
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.97.1.el9_4, kernel 5.14.0-427.97.1.el9_4, kernel-64k 5.14.0-427.97.1.el9_4, kernel-core 5.14.0-427.97.1.el9_4, kernel-tools 5.14.0-427.97.1.el9_4, python3-perf 5.14.0-427.97.1.el9_4, +28 more
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) perf 4.18.0-305.179.1.el8_4, kernel 4.18.0-305.179.1.el8_4, bpftool 4.18.0-305.179.1.el8_4, kernel-core 4.18.0-305.179.1.el8_4, kernel-tools 4.18.0-305.179.1.el8_4, python3-perf 4.18.0-305.179.1.el8_4, +8 more
    fixed: vendor fix RHSA-2025:22752
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6) perf 4.18.0-372.168.1.el8_6, kernel 4.18.0-372.168.1.el8_6, bpftool 4.18.0-372.168.1.el8_6, kernel-core 4.18.0-372.168.1.el8_6, kernel-tools 4.18.0-372.168.1.el8_6, python3-perf 4.18.0-372.168.1.el8_6, +8 more
    fixed: vendor fix RHSA-2025:21084
  • Red Hat Enterprise Linux BaseOS TUS (v.8.8) perf 4.18.0-477.118.1.el8_8, kernel 4.18.0-477.118.1.el8_8, bpftool 4.18.0-477.118.1.el8_8, kernel-core 4.18.0-477.118.1.el8_8, kernel-tools 4.18.0-477.118.1.el8_8, python3-perf 4.18.0-477.118.1.el8_8, +8 more
    fixed: vendor fix RHSA-2025:21083
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.7.1.el9_7, libperf 5.14.0-570.60.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-611.7.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-570.60.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-611.7.1.el9_7, kernel-debuginfo-common-aarch64 5.14.0-611.7.1.el9_7, +4 more
    fixed: vendor fix RHSA-2025:19409
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.83.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.83.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.83.1.el8_10
    fixed: vendor fix RHSA-2025:19931
  • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt 3.10.0-1160.144.1.rt56.1296.el7, kernel-rt-trace 3.10.0-1160.144.1.rt56.1296.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.144.1.rt56.1296.el7
    fixed: vendor fix RHSA-2025:23960
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-kvm 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-core 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-modules 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-debug-kvm 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-debug-core 4.18.0-553.83.1.rt7.424.el8_10, +4 more
    fixed: vendor fix RHSA-2025:19932
  • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-kvm 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-core 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-modules 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-kvm 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-core 5.14.0-70.153.1.rt21.225.el9_0, +4 more
    fixed: vendor fix RHSA-2025:21136
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.7.1.el9_7, kernel-rt 5.14.0-570.60.1.el9_6, kernel-rt-64k 5.14.0-611.7.1.el9_7, kernel-rt-64k 5.14.0-570.60.1.el9_6, kernel-rt-core 5.14.0-611.7.1.el9_7, kernel-rt-core 5.14.0-570.60.1.el9_6, +34 more
    fixed: vendor fix RHSA-2025:19409
  • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-core 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-modules 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-core 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-modules 5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-modules-extra 5.14.0-70.153.1.rt21.225.el9_0, +2 more
    fixed: vendor fix RHSA-2025:21136
  • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-core 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-modules 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-core 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-modules-core 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-modules 5.14.0-284.146.1.rt14.431.el9_2, +4 more
    fixed: vendor fix RHSA-2025:21128
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.97.1.el9_4, kernel-rt-core 5.14.0-427.97.1.el9_4, kernel-rt-modules 5.14.0-427.97.1.el9_4, kernel-rt-debug-core 5.14.0-427.97.1.el9_4, kernel-rt-modules-core 5.14.0-427.97.1.el9_4, kernel-rt-debug-modules 5.14.0-427.97.1.el9_4, +4 more
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-611.7.1.el9_7, kernel-rt 5.14.0-570.60.1.el9_6, kernel-rt-core 5.14.0-611.7.1.el9_7, kernel-rt-kvm 5.14.0-570.60.1.el9_6, kernel-rt-core 5.14.0-570.60.1.el9_6, kernel-rt-modules 5.14.0-611.7.1.el9_7, +16 more
    fixed: vendor fix RHSA-2025:19409
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-kvm 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-core 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-modules 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-kvm 5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-core 5.14.0-284.146.1.rt14.431.el9_2, +6 more
    fixed: vendor fix RHSA-2025:21128
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.97.1.el9_4, kernel-rt-kvm 5.14.0-427.97.1.el9_4, kernel-rt-core 5.14.0-427.97.1.el9_4, kernel-rt-modules 5.14.0-427.97.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.97.1.el9_4, kernel-rt-debug-core 5.14.0-427.97.1.el9_4, +6 more
    fixed: vendor fix RHSA-2025:19886
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-core 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-modules 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-debug-core 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-debug-modules 4.18.0-553.83.1.rt7.424.el8_10, kernel-rt-modules-extra 4.18.0-553.83.1.rt7.424.el8_10, +2 more
    fixed: vendor fix RHSA-2025:19932
  • Red Hat Enterprise Linux Server (v. 7 ELS) perf 3.10.0-1160.144.1.el7, kernel 3.10.0-1160.144.1.el7, bpftool 3.10.0-1160.144.1.el7, python-perf 3.10.0-1160.144.1.el7, kernel-kdump 3.10.0-1160.144.1.el7, kernel-tools 3.10.0-1160.144.1.el7, +7 more Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debuginfo-common-ppc64 3.10.0-1160.144.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.144.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.144.1.el7
    fixed: vendor fix RHSA-2025:23947
  • 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
9 mo ago

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
NVD 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 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.