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High · 7.8 CVE-2022-50367 EUVD-2022-55631GHSA-4hcm-79j9-x472

fs: fix UAF/GPF bug in nilfs_mdt_destroy

Published Sep 17, 2025 · Updated Aug 5, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.15 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.15 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-6.11 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-fips Package: linux-bluefield Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.15 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-6.11 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.15 Package: linux-hwe-5.19 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-6.11 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.4 Package: linux-intel Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-intel-iotg Package: linux-intel-iotg-5.15 Package: linux-iot Package: linux-kvm Package: linux-lowlatency Package: linux-lowlatency-hwe-5.15 Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.11 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lts-xenial Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.11 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.15 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.15 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Package: linux-vmware Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

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)

Affected products

VendorProductAffectedFixed
Linux Linux 2.6.12 4.9.331

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.0.2-1 —
Debian 13 linux 6.0.2-1 —
Debian 12 linux 6.0.2-1 —
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-intel +9 No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-53.59 —
Ubuntu 22.04 LTS linux-aws 5.15.0-1023.27 —
Ubuntu 22.04 LTS linux-azure 5.15.0-1023.29 —
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1024.30.1 —
Ubuntu 22.04 LTS linux-gcp 5.15.0-1022.29 —
Ubuntu 22.04 LTS linux-gke 5.15.0-1020.25 —
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1008.12 —
Ubuntu 22.04 LTS linux-ibm 5.15.0-1018.21 —
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1018.23 —
Ubuntu 22.04 LTS linux-kvm 5.15.0-1021.26 —
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1015.15 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1022.28 —
Ubuntu 22.04 LTS linux-raspi 5.15.0-1018.20 —
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-132.148 —
Ubuntu 20.04 LTS linux-aws 5.4.0-1089.97 —
Ubuntu 20.04 LTS linux-aws-5.15 +1 5.15.0-1023.27~20.04.1 —
Ubuntu 20.04 LTS linux-azure 5.4.0-1095.101 —
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1023.29~20.04.1 —
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1050.56 —
Ubuntu 20.04 LTS linux-gcp 5.4.0-1093.102 —
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1022.29~20.04.1 —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-53.59~20.04.1 —
Ubuntu 20.04 LTS linux-ibm 5.4.0-1037.42 —
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1018.23~20.04.1 —
Ubuntu 20.04 LTS linux-iot 5.4.0-1006.8 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1079.85 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1087.96 —
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1022.28~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1074.85 —
Ubuntu 18.04 LTS linux 4.15.0-197.208 —
Ubuntu 18.04 LTS linux-aws 4.15.0-1143.155 —
Ubuntu 18.04 LTS linux-aws-5.4 5.4.0-1089.97~18.04.1 —
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1157.172 —
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1095.101~18.04.1 —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1138.154 —
Ubuntu 18.04 LTS linux-gcp-5.4 5.4.0-1093.102~18.04.1 —
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-132.148~18.04.1 —
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1037.42~18.04.1 —
Ubuntu 18.04 LTS linux-kvm 4.15.0-1129.134 —
Ubuntu 18.04 LTS linux-oracle 4.15.0-1108.119 —
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1087.96~18.04.1 —
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1074.85~18.04.1 —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1025.28 —
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1089.97+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1095.101+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1065.74 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1093.102+fips1 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2082.88 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2066.72 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1100.111 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2047.52 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips No fix yet —
Ubuntu Pro 16.04 LTS linux +2 No fix yet —
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1143.155~16.04.1 —
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1159.174~16.04.1 —
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1138.154~16.04.1 —
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-197.208~16.04.1 —
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1108.119~16.04.1 —
Ubuntu Pro 14.04 LTS linux +2 No fix yet —
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1157.172~14.04.2 —
ReleasePackageFixed inAdvisory
RHEL 9 rv +77 5.14.0-570.60.1.el9_6 RHSA-2025:21112, RHSA-2025:19409
RHEL 8 kernel-rt +12 4.18.0-553.83.1.rt7.424.el8_10 RHSA-2025:19932
RHEL 8 perf +26 4.18.0-553.83.1.el8_10 RHSA-2025:19931
Show 13 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat Rhel Extras Rt Els 7 kernel-rt +7 3.10.0-1160.144.1.rt56.1296.el7 RHSA-2025:23960
RHEL 9.4 EUS bpftool 7.3.0-427.97.1.el9_4 RHSA-2025:19886
RHEL 9.4 EUS rv +64 5.14.0-427.97.1.el9_4 RHSA-2025:19886
RHEL 9.2 E4S bpftool 7.0.0-284.146.1.el9_2 RHSA-2025:21051
RHEL 9.2 E4S kernel-rt +14 5.14.0-284.146.1.rt14.431.el9_2 RHSA-2025:21128
RHEL 9.2 E4S perf +47 5.14.0-284.146.1.el9_2 RHSA-2025:21051
RHEL 9.0 E4S kernel-rt +12 5.14.0-70.153.1.rt21.225.el9_0 RHSA-2025:21136
RHEL 9.0 E4S perf +28 5.14.0-70.153.1.el9_0 RHSA-2025:21091
RHEL 8.8 TUS perf +17 4.18.0-477.118.1.el8_8 RHSA-2025:21083
RHEL 8.8 E4S perf +18 4.18.0-477.118.1.el8_8 RHSA-2025:21083
RHEL 8.6 TUS perf +17 4.18.0-372.168.1.el8_6 RHSA-2025:21084
RHEL 8.6 E4S perf +25 4.18.0-372.168.1.el8_6 RHSA-2025:21084
RHEL 8.6 AUS perf +17 4.18.0-372.168.1.el8_6 RHSA-2025:21084
RHEL 8.4 EUS Long Life perf +17 4.18.0-305.179.1.el8_4 RHSA-2025:22752
RHEL 8.4 AUS perf +17 4.18.0-305.179.1.el8_4 RHSA-2025:22752
RHEL 8.2 AUS perf +17 4.18.0-193.178.1.el8_2 RHSA-2025:23445
RHEL 7 ELS perf +18 3.10.0-1160.144.1.el7 RHSA-2025:23947

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 rv +75 5.14.0-570.60.1.el9_6 ALSA-2025:19409
AlmaLinux 8 kernel-rt +9 4.18.0-553.83.1.rt7.424.el8_10 ALSA-2025:19932
AlmaLinux 8 perf +24 4.18.0-553.83.1.el8_10 ALSA-2025:19931

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-553.83.1.el8_10 RLSA-2025:19931
Rocky Linux 8 kernel-rt 4.18.0-553.83.1.rt7.424.el8_10 RLSA-2025:19932
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.221.1 SUSE-SU-2025:03626-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.221.1.150300.18.132.1 SUSE-SU-2025:03626-1
SLES 12 SP5 kernel-syms +2 4.12.14-122.280.1 SUSE-SU-2025:4189-1
Show 18 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLES for SAP 15 SP5 kernel-docs +4 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLES for SAP 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLES for SAP 15 SP4 kernel-docs +4 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.221.1.150300.18.132.1 SUSE-SU-2025:03626-1
SLES for SAP 15 SP3 kernel-docs +5 5.3.18-150300.59.221.1 SUSE-SU-2025:03626-1
SLE Micro 5.5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLE Micro 5.5 kernel-rt +1 5.14.21-150500.13.109.1 SUSE-SU-2025:3761-1
SLE Micro 5.5 kernel-source +1 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLE Micro 5.4 kernel-rt +1 5.14.21-150400.15.133.1 SUSE-SU-2025:3716-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLE Micro 5.3 kernel-rt +1 5.14.21-150400.15.133.1 SUSE-SU-2025:3716-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.221.1 SUSE-SU-2025:03626-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.221.1.150300.18.132.1 SUSE-SU-2025:03626-1
SLE Micro 5.2 kernel-rt +1 5.3.18-150300.223.1 SUSE-SU-2025:03613-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.221.1 SUSE-SU-2025:03626-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.221.1.150300.18.132.1 SUSE-SU-2025:03626-1
SLE Micro 5.1 kernel-rt +1 5.3.18-150300.223.1 SUSE-SU-2025:03613-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_31 1-150500.11.3.1 SUSE-SU-2025:03615-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_45 1-150400.9.3.1 SUSE-SU-2025:03628-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.221.1 SUSE-SU-2025:03626-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_62 1-150300.7.3.1 SUSE-SU-2025:03626-1
SLE Live Patching 12 SP5 kernel-default 4.12.14-122.280.1 SUSE-SU-2025:4189-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_63 16-2.1 SUSE-SU-2026:0154-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_72 4-2.1 SUSE-SU-2026:0155-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_73 2-2.1 SUSE-SU-2026:0200-1
SLE Live Patching 12 SP5 kgraft-patch-SLE12-SP5_Update_74 1-8.5.1 SUSE-SU-2025:4189-1
SLE HPC 15 SP5 kernel-64kb +5 5.14.21-150500.55.124.1 SUSE-SU-2025:03615-1
SLE HPC 15 SP5 kernel-default-base 5.14.21-150500.55.124.1.150500.6.59.1 SUSE-SU-2025:03615-1
SLE HPC 15 SP4 kernel-64kb +5 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SLE HPC 15 SP4 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SLE HPC 15 SP3 kernel-64kb +6 5.3.18-150300.59.221.1 SUSE-SU-2025:03626-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.221.1.150300.18.132.1 SUSE-SU-2025:03626-1
SUSE Manager Server LTS 4.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SUSE Manager Server LTS 4.3 kernel-syms +3 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SUSE Manager Proxy LTS 4.3 kernel-default-base 5.14.21-150400.24.179.1.150400.24.92.1 SUSE-SU-2025:03628-1
SUSE Manager Proxy LTS 4.3 kernel-syms +2 5.14.21-150400.24.179.1 SUSE-SU-2025:03628-1
SUSE Enterprise Storage 7.1 kernel-64kb +6 5.3.18-150300.59.221.1 SUSE-SU-2025:03626-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.221.1.150300.18.132.1 SUSE-SU-2025:03626-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 kernel-livepatch-4.14.296-222.539 1.0-0.amzn2 ALAS2-2022-1876
Amazon Linux 2 perf +8 4.14.296-222.539.amzn2 ALAS2-2022-1876

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 rv +28 5.14.0-570.60.1.0.1.el9_6 ELSA-2025-21112, ELSA-2025-19409
Oracle Linux 8 perf +19 4.18.0-553.83.1.el8_10 ELSA-2025-19931
Oracle Linux 7 perf +12 3.10.0-1160.119.1.0.16.el7 ELSA-2025-23947

Advisories 37

References