CWE
416 362
Advisory Published
CVE Published
Updated

CVE-2022-41218: Use After Free

First published: Wed Aug 31 2022(Updated: )

In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release.

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:4.18.0-477.10.1.rt7.274.el8_8
0:4.18.0-477.10.1.rt7.274.el8_8
redhat/kernel<0:4.18.0-477.10.1.el8_8
0:4.18.0-477.10.1.el8_8
Linux Linux kernel<=5.19.10
Debian Debian Linux=11.0
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<5.19.0-40.41
5.19.0-40.41
ubuntu/linux<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux<4.4.0-239.273
4.4.0-239.273
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<5.19.0-1023.24
5.19.0-1023.24
ubuntu/linux-aws<4.4.0-1117.123
4.4.0-1117.123
ubuntu/linux-aws<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-aws<4.4.0-1155.170
4.4.0-1155.170
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<5.19.0-1023.24
5.19.0-1023.24
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<5.19.0-1023.24~22.04.1
5.19.0-1023.24~22.04.1
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<5.19.0-1020.22
5.19.0-1020.22
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<5.19.0-40.41~22.04.1
5.19.0-40.41~22.04.1
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<5.19.0-1020.22
5.19.0-1020.22
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<5.19.0-1021.22
5.19.0-1021.22
ubuntu/linux-kvm<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
ubuntu/linux-kvm<4.4.0-1118.128
4.4.0-1118.128
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<5.19.0-1022.23
5.19.0-1022.23
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<5.19.0-1022.23~22.04.1
5.19.0-1022.23~22.04.1
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<4.4.0-239.273~14.04.1
4.4.0-239.273~14.04.1
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<6.2~<5.4.229<5.15.87
6.2~
5.4.229
5.15.87
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<6.2~<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<5.19.0-1020.23
5.19.0-1020.23
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<5.19.0-1016.23
5.19.0-1016.23
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<5.19.0-1016.17
5.19.0-1016.17
ubuntu/linux-riscv<6.2.0-19.19.1
6.2.0-19.19.1
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
6.1.94-1
6.1.90-1
6.9.8-1
6.9.9-1

Remedy

To mitigate this issue, prevent the module dvb-core from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically.

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Reference Links

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