7.5
CWE
610
Advisory Published
Updated

CVE-2023-0045

First published: Fri Feb 03 2023(Updated: )

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ib_prctl_set function updates the Thread Information Flags (TIFs) for the task and updates the SPEC_CTRL MSR on the function __speculation_ctrl_update, but the IBPB is only issued on the next schedule, when the TIF bits are checked. This leaves the victim vulnerable to values already injected on the BTB, prior to the prctl syscall. The patch that added the support for the conditional mitigation via prctl (ib_prctl_set) dates back to the kernel 4.9.176. We recommend upgrading past commit a664ec9158eeddd75121d39c9a0758016097fa96

Credit: cve-coordination@google.com cve-coordination@google.com cve-coordination@google.com

Affected SoftwareAffected VersionHow to fix
Linux Linux kernel>=3.16.68<3.17
Linux Linux kernel>=4.4.180<4.5
Linux Linux kernel>=4.9.176<4.10
Linux Linux kernel>=4.14.86<4.14.303
Linux Linux kernel>=4.19.7<4.19.270
Linux Linux kernel>=4.20<5.4.229
Linux Linux kernel>=5.5.0<5.10.163
Linux Linux kernel>=5.11<5.15.87
Linux Linux kernel>=5.16<6.0.19
Linux Linux kernel>=6.1<6.1.5
Debian Debian Linux=10.0
Netapp Active Iq Unified Manager Vmware Vsphere
Netapp H300s Firmware
Netapp H300s
Netapp H500s Firmware
Netapp H500s
Netapp H700s Firmware
Netapp H700s
Netapp H410s Firmware
Netapp H410s
Netapp H410c Firmware
Netapp H410c
All of
Netapp H300s Firmware
Netapp H300s
All of
Netapp H500s Firmware
Netapp H500s
All of
Netapp H700s Firmware
Netapp H700s
All of
Netapp H410s Firmware
Netapp H410s
All of
Netapp H410c Firmware
Netapp H410c
ubuntu/linux<4.15.0-208.220
4.15.0-208.220
ubuntu/linux<5.4.0-144.161
5.4.0-144.161
ubuntu/linux<5.15.0-69.76
5.15.0-69.76
ubuntu/linux<5.19.0-38.39
5.19.0-38.39
ubuntu/linux<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux<4.4.0-237.271
4.4.0-237.271
ubuntu/linux-aws<4.15.0-1153.166
4.15.0-1153.166
ubuntu/linux-aws<5.4.0-1097.105
5.4.0-1097.105
ubuntu/linux-aws<5.15.0-1033.37
5.15.0-1033.37
ubuntu/linux-aws<5.19.0-1022.23
5.19.0-1022.23
ubuntu/linux-aws<6.2.0-1002.2
6.2.0-1002.2
ubuntu/linux-aws<4.4.0-1116.122
4.4.0-1116.122
ubuntu/linux-aws<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-aws<4.4.0-1154.169
4.4.0-1154.169
ubuntu/linux-aws-5.0<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-aws-5.15<5.15.0-1033.37~20.04.1
5.15.0-1033.37~20.04.1
ubuntu/linux-aws-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-aws-5.4<5.4.0-1097.105~18.04.1
5.4.0-1097.105~18.04.1
ubuntu/linux-aws-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-aws-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-aws-fips<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-aws-hwe<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-aws-hwe<4.15.0-1153.166~16.04.1
4.15.0-1153.166~16.04.1
ubuntu/linux-azure<5.4.0-1104.110
5.4.0-1104.110
ubuntu/linux-azure<5.15.0-1035.42
5.15.0-1035.42
ubuntu/linux-azure<5.19.0-1022.23
5.19.0-1022.23
ubuntu/linux-azure<6.2.0-1002.2
6.2.0-1002.2
ubuntu/linux-azure<4.15.0-1162.177~14.04.1
4.15.0-1162.177~14.04.1
ubuntu/linux-azure<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-azure<4.15.0-1162.177~16.04.1
4.15.0-1162.177~16.04.1
ubuntu/linux-azure-4.15<4.15.0-1162.177
4.15.0-1162.177
ubuntu/linux-azure-4.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-azure-5.15<5.15.0-1035.42~20.04.1
5.15.0-1035.42~20.04.1
ubuntu/linux-azure-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-azure-5.19<5.19.0-1022.23~22.04.1
5.19.0-1022.23~22.04.1
ubuntu/linux-azure-5.4<5.4.0-1104.110~18.04.1
5.4.0-1104.110~18.04.1
ubuntu/linux-azure-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-azure-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-azure-edge<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-azure-fde<5.4.0-1104.110
5.4.0-1104.110
ubuntu/linux-azure-fde<5.15.0-1035.42.1
5.15.0-1035.42.1
ubuntu/linux-azure-fde<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-azure-fde-5.15<5.15.0-1035.42~20.04.1.1
5.15.0-1035.42~20.04.1.1
ubuntu/linux-azure-fde-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-azure-fips<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-bluefield<5.4.0-1059.65
5.4.0-1059.65
ubuntu/linux-bluefield<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-dell300x<4.15.0-1062.67
4.15.0-1062.67
ubuntu/linux-dell300x<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-fips<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gcp<5.4.0-1101.110
5.4.0-1101.110
ubuntu/linux-gcp<5.15.0-1031.38
5.15.0-1031.38
ubuntu/linux-gcp<5.19.0-1019.21
5.19.0-1019.21
ubuntu/linux-gcp<6.2.0-1004.4
6.2.0-1004.4
ubuntu/linux-gcp<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gcp<4.15.0-1147.163~16.04.1
4.15.0-1147.163~16.04.1
ubuntu/linux-gcp-4.15<4.15.0-1147.163
4.15.0-1147.163
ubuntu/linux-gcp-4.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gcp-5.15<5.15.0-1031.38~20.04.1
5.15.0-1031.38~20.04.1
ubuntu/linux-gcp-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gcp-5.4<5.4.0-1101.110~18.04.1
5.4.0-1101.110~18.04.1
ubuntu/linux-gcp-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gcp-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gcp-fips<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gke<5.4.0-1095.102
5.4.0-1095.102
ubuntu/linux-gke<5.15.0-1030.35
5.15.0-1030.35
ubuntu/linux-gke<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gke-4.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gke-5.0<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gke-5.15<5.15.0-1029.34~20.04.1
5.15.0-1029.34~20.04.1
ubuntu/linux-gke-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gke-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gkeop<5.4.0-1065.69
5.4.0-1065.69
ubuntu/linux-gkeop<5.15.0-1017.22
5.15.0-1017.22
ubuntu/linux-gkeop<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gkeop-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-gkeop-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-hwe<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-hwe<4.15.0-208.219~16.04.1
4.15.0-208.219~16.04.1
ubuntu/linux-hwe-5.15<5.15.0-69.76~20.04.1
5.15.0-69.76~20.04.1
ubuntu/linux-hwe-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-hwe-5.19<5.19.0-38.39~22.04.1
5.19.0-38.39~22.04.1
ubuntu/linux-hwe-5.4<5.4.0-144.161~18.04.1
5.4.0-144.161~18.04.1
ubuntu/linux-hwe-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-hwe-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-hwe-edge<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-ibm<5.4.0-1045.50
5.4.0-1045.50
ubuntu/linux-ibm<5.15.0-1027.30
5.15.0-1027.30
ubuntu/linux-ibm<5.19.0-1019.21
5.19.0-1019.21
ubuntu/linux-ibm<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-ibm-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-ibm-5.4<5.4.0-1045.50~18.04.1
5.4.0-1045.50~18.04.1
ubuntu/linux-ibm-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-intel<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-intel-5.13<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-intel-iotg<5.15.0-1027.32
5.15.0-1027.32
ubuntu/linux-intel-iotg<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-intel-iotg-5.15<5.15.0-1027.32~20.04.1
5.15.0-1027.32~20.04.1
ubuntu/linux-intel-iotg-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-iot<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-kvm<4.15.0-1137.142
4.15.0-1137.142
ubuntu/linux-kvm<5.4.0-1087.93
5.4.0-1087.93
ubuntu/linux-kvm<5.15.0-1030.35
5.15.0-1030.35
ubuntu/linux-kvm<5.19.0-1020.21
5.19.0-1020.21
ubuntu/linux-kvm<6.2.0-1002.2
6.2.0-1002.2
ubuntu/linux-kvm<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-kvm<4.4.0-1117.127
4.4.0-1117.127
ubuntu/linux-laptop<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-lowlatency<5.15.0-69.76
5.15.0-69.76
ubuntu/linux-lowlatency<5.19.0-1021.22
5.19.0-1021.22
ubuntu/linux-lowlatency<6.2.0-1002.2
6.2.0-1002.2
ubuntu/linux-lowlatency<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-69.76~20.04.1
5.15.0-69.76~20.04.1
ubuntu/linux-lowlatency-hwe-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-lowlatency-hwe-5.19<5.19.0-1021.22~22.04.1
5.19.0-1021.22~22.04.1
ubuntu/linux-lowlatency-hwe-5.19<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-lowlatency-hwe-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-lts-xenial<4.4.0-237.271~14.04.1
4.4.0-237.271~14.04.1
ubuntu/linux-lts-xenial<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-nvidia<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-nvidia-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-5.10<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-5.14<5.14.0-1058.66
5.14.0-1058.66
ubuntu/linux-oem-5.14<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-5.17<5.17.0-1028.29
5.17.0-1028.29
ubuntu/linux-oem-5.17<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-5.6<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-6.0<6.0.0-1012.12
6.0.0-1012.12
ubuntu/linux-oem-6.0<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-6.1<6.1.0-1007.7
6.1.0-1007.7
ubuntu/linux-oem-6.1<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-6.8<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oem-osp1<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oracle<4.15.0-1116.127
4.15.0-1116.127
ubuntu/linux-oracle<5.4.0-1094.103
5.4.0-1094.103
ubuntu/linux-oracle<5.15.0-1032.38
5.15.0-1032.38
ubuntu/linux-oracle<5.19.0-1019.22
5.19.0-1019.22
ubuntu/linux-oracle<6.2.0-1002.2
6.2.0-1002.2
ubuntu/linux-oracle<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oracle<4.15.0-1116.127~16.04.1
4.15.0-1116.127~16.04.1
ubuntu/linux-oracle-5.0<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oracle-5.13<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oracle-5.15<5.15.0-1032.38~20.04.1
5.15.0-1032.38~20.04.1
ubuntu/linux-oracle-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oracle-5.4<5.4.0-1094.103~18.04.1
5.4.0-1094.103~18.04.1
ubuntu/linux-oracle-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-oracle-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-raspi<5.4.0-1081.92
5.4.0-1081.92
ubuntu/linux-raspi<5.15.0-1026.28
5.15.0-1026.28
ubuntu/linux-raspi<5.19.0-1015.22
5.19.0-1015.22
ubuntu/linux-raspi<6.2.0-1003.3
6.2.0-1003.3
ubuntu/linux-raspi<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-raspi-5.4<5.4.0-1081.92~18.04.1
5.4.0-1081.92~18.04.1
ubuntu/linux-raspi-5.4<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-raspi2<4.15.0-1129.137
4.15.0-1129.137
ubuntu/linux-raspi2<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-riscv<5.19.0-1015.16
5.19.0-1015.16
ubuntu/linux-riscv<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-riscv-5.15<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-riscv-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-snapdragon<4.15.0-1148.158
4.15.0-1148.158
ubuntu/linux-snapdragon<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-starfive<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-starfive-6.5<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-xilinx-zynqmp<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
debian/linux
5.10.218-1
5.10.221-1
6.1.94-1
6.1.99-1
6.9.8-1
6.9.9-1

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