Skip to content
OpenAdvisories
Unscored CVE-2023-21400 EUVD-2023-25568GHSA-xjm8-9w9g-9h2f

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalat…

Published Jul 12, 2023 · Updated Feb 13, 2025 · Assigned by google_android

Vendor: Google Product: Android 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-azure 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-6.2 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-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-6.2 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-edge Package: linux-ibm Package: linux-ibm-5.15 Package: linux-ibm-5.4 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-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-nvidia Package: linux-nvidia-tegra Package: linux-nvidia-tegra-5.15 Package: linux-nvidia-tegra-igx 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-6.5 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 Package: linux-xilinx-zynqmp Platform: Android Ecosystem: Debian Ecosystem: Ubuntu

Description

In multiple functions of io_uring.c, there is a possible kernel memory corruption due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

Affected products

VendorProductAffectedFixed
Google Android Android kernel —

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 5.18.2-1 —
Debian 13 linux 5.18.2-1 —
Debian 12 linux 5.18.2-1 —
Debian 11 linux 5.10.191-1 DSA-5480-1
Debian 10 linux-5.10 5.10.197-1~deb10u1 DLA-3623-1
ReleasePackageFixed inAdvisory
Ubuntu Nvidia-BlueField 22.04 LTS linux-bluefield 5.15.0-1022.24 —
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux +1 5.15.0-82.91 USN-6315-1
Ubuntu 22.04 LTS linux-aws 5.15.0-1043.48 USN-6315-1
Ubuntu 22.04 LTS linux-azure 5.15.0-1045.52 USN-6332-1
Ubuntu 22.04 LTS linux-azure-fde 5.15.0-1045.52.1 USN-6332-1
Ubuntu 22.04 LTS linux-gcp 5.15.0-1040.48 USN-6315-1
Ubuntu 22.04 LTS linux-gke +1 5.15.0-1040.45 USN-6315-1
Ubuntu 22.04 LTS linux-gkeop 5.15.0-1026.31 USN-6315-1
Ubuntu 22.04 LTS linux-ibm +1 5.15.0-1036.39 USN-6348-1, USN-6315-1
Ubuntu 22.04 LTS linux-intel-iotg 5.15.0-1038.43 USN-6325-1
Ubuntu 22.04 LTS linux-nvidia 5.15.0-1031.31 USN-6315-1
Ubuntu 22.04 LTS linux-nvidia-tegra 5.15.0-1017.17 —
Ubuntu 22.04 LTS linux-nvidia-tegra-igx 5.15.0-1004.4 —
Ubuntu 22.04 LTS linux-oracle 5.15.0-1041.47 USN-6315-1
Ubuntu 22.04 LTS linux-riscv +27 No fix yet —
Ubuntu 22.04 LTS linux-xilinx-zynqmp 5.15.0-1025.29 —
Ubuntu 20.04 LTS linux 5.4.0-205.225 USN-7234-1
Ubuntu 20.04 LTS linux-aws 5.4.0-1139.149 USN-7234-4
Ubuntu 20.04 LTS linux-aws-5.15 5.15.0-1043.48~20.04.1 USN-6315-1
Ubuntu 20.04 LTS linux-azure 5.4.0-1143.150 USN-7234-3
Ubuntu 20.04 LTS linux-azure-5.15 5.15.0-1045.52~20.04.1 USN-6332-1
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1098.105 USN-7234-1
Ubuntu 20.04 LTS linux-gcp 5.4.0-1142.151 USN-7234-1
Ubuntu 20.04 LTS linux-gcp-5.15 5.15.0-1040.48~20.04.1 USN-6330-1
Ubuntu 20.04 LTS linux-gke +27 No fix yet —
Ubuntu 20.04 LTS linux-gkeop-5.15 5.15.0-1026.31~20.04.1 USN-6325-1
Ubuntu 20.04 LTS linux-hwe-5.15 +1 5.15.0-82.91~20.04.1 USN-6315-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1085.90 USN-7234-1
Ubuntu 20.04 LTS linux-ibm-5.15 5.15.0-1036.39~20.04.1 —
Ubuntu 20.04 LTS linux-intel-iotg-5.15 5.15.0-1038.43~20.04.1 USN-6348-1
Ubuntu 20.04 LTS linux-iot 5.4.0-1048.51 USN-7413-1
Ubuntu 20.04 LTS linux-kvm 5.4.0-1126.134 USN-7234-1
Ubuntu 20.04 LTS linux-nvidia-tegra-5.15 5.15.0-1017.17~20.04.1 —
Ubuntu 20.04 LTS linux-oracle 5.4.0-1137.146 USN-7234-1
Ubuntu 20.04 LTS linux-oracle-5.15 5.15.0-1041.47~20.04.1 USN-6315-1
Ubuntu 20.04 LTS linux-raspi 5.4.0-1122.134 USN-7234-1
Ubuntu 20.04 LTS linux-riscv-5.15 5.15.0-1039.43~20.04.2 —
Ubuntu 20.04 LTS linux-xilinx-zynqmp 5.4.0-1058.62 USN-7295-1
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Show 10 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Ubuntu Pro Realtime 22.04 LTS linux-intel-iot-realtime 5.15.0-1037.39 —
Ubuntu Pro Realtime 22.04 LTS linux-realtime 5.15.0-1044.49 —
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips 5.4.0-1139.149+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1143.150+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1112.122 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-gcp-fips 5.4.0-1142.151+fips1 —
Ubuntu Pro FIPS-preview 22.04 LTS linux-fips No fix yet —
Ubuntu Pro 22.04 LTS linux 5.15.0-84.93 LSN-0098-1
Ubuntu Pro 22.04 LTS linux-aws 5.15.0-1045.50 LSN-0098-1
Ubuntu Pro 22.04 LTS linux-aws-6.2 +1 6.2.0-1012.12~22.04.1 LSN-0098-1
Ubuntu Pro 22.04 LTS linux-azure 5.15.0-1047.54 LSN-0098-1
Ubuntu Pro 22.04 LTS linux-gcp 5.15.0-1042.50 LSN-0098-1
Ubuntu Pro 22.04 LTS linux-gcp-6.2 6.2.0-1014.14~22.04.1 LSN-0098-1
Ubuntu Pro 22.04 LTS linux-gke 5.15.0-1042.47 LSN-0098-1
Ubuntu Pro 22.04 LTS linux-hwe-6.2 6.2.0-33.33~22.04.1 LSN-0098-1
Ubuntu Pro 22.04 LTS linux-ibm 5.15.0-1038.41 LSN-0098-1
Ubuntu Pro 20.04 LTS linux 5.4.0-205.225 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-aws 5.4.0-1139.149 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-aws-5.15 5.15.0-1045.50~20.04.1 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-azure 5.4.0-1143.150 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-gcp 5.4.0-1142.151 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-gcp-5.15 5.15.0-1042.50~20.04.1 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-gke 5.4.0-1104.111 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-gke-5.15 5.15.0-1038.43~20.04.1 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-gkeop 5.4.0-1077.81 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-hwe-5.15 +1 5.15.0-84.93~20.04.1 LSN-0098-1
Ubuntu Pro 20.04 LTS linux-ibm 5.4.0-1085.90 LSN-0098-1
Ubuntu Pro 18.04 LTS linux 4.15.0-218.229 LSN-0098-1
Ubuntu Pro 18.04 LTS linux-aws 4.15.0-1161.174 LSN-0098-1
Ubuntu Pro 18.04 LTS linux-aws-5.4 5.4.0-1139.149~18.04.1 USN-7234-5
Ubuntu Pro 18.04 LTS linux-azure-4.15 4.15.0-1170.185 LSN-0098-1
Ubuntu Pro 18.04 LTS linux-azure-5.4 5.4.0-1143.150~18.04.1 USN-7234-3
Ubuntu Pro 18.04 LTS linux-gcp-4.15 4.15.0-1155.172 LSN-0098-1
Ubuntu Pro 18.04 LTS linux-gcp-5.4 5.4.0-1142.151~18.04.1 USN-7234-1
Ubuntu Pro 18.04 LTS linux-hwe-5.4 5.4.0-205.225~18.04.1 USN-7234-2
Ubuntu Pro 18.04 LTS linux-ibm-5.4 5.4.0-1085.90~18.04.1 USN-7234-1
Ubuntu Pro 18.04 LTS linux-oracle-5.4 5.4.0-1137.146~18.04.1 USN-7234-1
Ubuntu Pro 18.04 LTS linux-raspi-5.4 5.4.0-1122.134~18.04.1 USN-7234-5
Ubuntu Pro 16.04 LTS linux 4.4.0-245.279 LSN-0098-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1161.176 LSN-0098-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1170.185~16.04.1 LSN-0098-1
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1155.172~16.04.1 LSN-0098-1
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-245.279~14.04.1 LSN-0098-1
ReleasePackageFixed inAdvisory
SLES 15 SP5 kernel-64kb +6 5.14.21-150500.55.19.1 SUSE-SU-2023:3311-1
SLES 15 SP5 kernel-azure +2 5.14.21-150500.33.14.1 SUSE-SU-2023:3376-1
SLES 15 SP5 kernel-default-base 5.14.21-150500.55.19.1.150500.6.6.4 SUSE-SU-2023:3311-1
SLES 15 SP4 kernel-64kb +6 5.14.21-150400.24.81.1 SUSE-SU-2023:3313-1
SLES 15 SP4 kernel-azure +2 5.14.21-150400.14.63.1 SUSE-SU-2023:3377-1
SLES 15 SP4 kernel-default-base 5.14.21-150400.24.81.1.150400.24.35.3 SUSE-SU-2023:3313-1
SLES 15 SP3 kernel-64kb +7 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SLES 15 SP3 kernel-default-base 5.3.18-150300.59.133.1.150300.18.78.1 SUSE-SU-2023:3684-1
SLES 15 SP2 kernel-default-base 5.3.18-150200.24.163.1.150200.9.81.1 SUSE-SU-2023:3687-1
SLES 15 SP2 kernel-docs +5 5.3.18-150200.24.163.1 SUSE-SU-2023:3687-1
Show 17 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP3 kernel-default-base 5.3.18-150300.59.133.1.150300.18.78.1 SUSE-SU-2023:3684-1
SLES for SAP 15 SP3 kernel-docs +5 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SLES for SAP 15 SP2 kernel-default-base 5.3.18-150200.24.163.1.150200.9.81.1 SUSE-SU-2023:3687-1
SLES for SAP 15 SP2 kernel-docs +5 5.3.18-150200.24.163.1 SUSE-SU-2023:3687-1
SLE Micro 5.4 kernel-default 5.14.21-150400.24.81.1 SUSE-SU-2023:3313-1
SLE Micro 5.4 kernel-default-base 5.14.21-150400.24.81.1.150400.24.35.3 SUSE-SU-2023:3313-1
SLE Micro 5.4 kernel-rt 5.14.21-150400.15.46.1 SUSE-SU-2023:3318-1
SLE Micro 5.3 kernel-default 5.14.21-150400.24.81.1 SUSE-SU-2023:3313-1
SLE Micro 5.3 kernel-default-base 5.14.21-150400.24.81.1.150400.24.35.3 SUSE-SU-2023:3313-1
SLE Micro 5.3 kernel-rt 5.14.21-150400.15.46.1 SUSE-SU-2023:3318-1
SLE Micro 5.2 kernel-default 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SLE Micro 5.2 kernel-default-base 5.3.18-150300.59.133.1.150300.18.78.1 SUSE-SU-2023:3684-1
SLE Micro 5.2 kernel-rt 5.3.18-150300.141.1 SUSE-SU-2023:3785-1
SLE Micro 5.1 kernel-default 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SLE Micro 5.1 kernel-default-base 5.3.18-150300.59.133.1.150300.18.78.1 SUSE-SU-2023:3684-1
SLE Micro 5.1 kernel-rt 5.3.18-150300.141.1 SUSE-SU-2023:3785-1
SLE Live Patching 15 SP5 kernel-default 5.14.21-150500.55.19.1 SUSE-SU-2023:3311-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5-RT_Update_3 1-150500.11.5.1 SUSE-SU-2023:3302-1
SLE Live Patching 15 SP5 kernel-livepatch-SLE15-SP5_Update_3 1-150500.11.3.4 SUSE-SU-2023:3311-1
SLE Live Patching 15 SP4 kernel-default 5.14.21-150400.24.81.1 SUSE-SU-2023:3313-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4-RT_Update_11 1-150400.1.5.1 SUSE-SU-2023:3318-1
SLE Live Patching 15 SP4 kernel-livepatch-SLE15-SP4_Update_16 1-150400.9.3.3 SUSE-SU-2023:3313-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_36 1-150300.7.3.1 SUSE-SU-2023:3684-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-150200.24.163.1 SUSE-SU-2023:3687-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_40 1-150200.5.3.1 SUSE-SU-2023:3687-1
SLE HPC 15 SP3 kernel-64kb +6 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SLE HPC 15 SP3 kernel-default-base 5.3.18-150300.59.133.1.150300.18.78.1 SUSE-SU-2023:3684-1
SLE HPC 15 SP2 kernel-default-base 5.3.18-150200.24.163.1.150200.9.81.1 SUSE-SU-2023:3687-1
SLE HPC 15 SP2 kernel-docs +5 5.3.18-150200.24.163.1 SUSE-SU-2023:3687-1
SUSE Real Time Module 15 SP5 kernel-rt +3 5.14.21-150500.13.11.1 SUSE-SU-2023:3302-1
SUSE Real Time Module 15 SP4 kernel-rt +3 5.14.21-150400.15.46.1 SUSE-SU-2023:3318-1
SUSE Manager Server 4.2 kernel-default-base 5.3.18-150300.59.133.1.150300.18.78.1 SUSE-SU-2023:3684-1
SUSE Manager Server 4.2 kernel-source +3 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SUSE Manager Proxy 4.2 kernel-default-base 5.3.18-150300.59.133.1.150300.18.78.1 SUSE-SU-2023:3684-1
SUSE Manager Proxy 4.2 kernel-source +2 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SUSE Enterprise Storage 7.1 kernel-64kb +6 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1
SUSE Enterprise Storage 7.1 kernel-default-base 5.3.18-150300.59.133.1.150300.18.78.1 SUSE-SU-2023:3684-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.5 dtb-aarch64 +10 5.14.21-150500.55.19.1 SUSE-SU-2023:3311-1
openSUSE Leap 15.5 kernel-azure +2 5.14.21-150500.33.14.1 SUSE-SU-2023:3376-1
openSUSE Leap 15.5 kernel-default-base 5.14.21-150500.55.19.1.150500.6.6.4 SUSE-SU-2023:3311-1
openSUSE Leap 15.5 kernel-rt +3 5.14.21-150500.13.11.1 SUSE-SU-2023:3302-1
openSUSE Leap 15.4 dtb-aarch64 5.3.18-150300.59.133.1 SUSE-SU-2023:3684-1, SUSE-SU-2023:3313-1
openSUSE Leap 15.4 kernel-64kb +9 5.14.21-150400.24.81.1 SUSE-SU-2023:3313-1
openSUSE Leap 15.4 kernel-azure +2 5.14.21-150400.14.63.1 SUSE-SU-2023:3377-1
openSUSE Leap 15.4 kernel-default-base 5.14.21-150400.24.81.1.150400.24.35.3 SUSE-SU-2023:3313-1
openSUSE Leap 15.4 kernel-rt +3 5.14.21-150400.15.46.1 SUSE-SU-2023:3318-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.4 kernel-default 5.14.21-150400.24.81.1 SUSE-SU-2023:3313-1
openSUSE Leap Micro 5.4 kernel-default-base 5.14.21-150400.24.81.1.150400.24.35.3 SUSE-SU-2023:3313-1
openSUSE Leap Micro 5.4 kernel-rt 5.14.21-150400.15.46.1 SUSE-SU-2023:3318-1
openSUSE Leap Micro 5.3 kernel-default 5.14.21-150400.24.81.1 SUSE-SU-2023:3313-1
openSUSE Leap Micro 5.3 kernel-default-base 5.14.21-150400.24.81.1.150400.24.35.3 SUSE-SU-2023:3313-1
openSUSE Leap Micro 5.3 kernel-rt 5.14.21-150400.15.46.1 SUSE-SU-2023:3318-1

Advisories 25

References