First published: Tue Mar 09 2021(Updated: )
A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.
Credit: secalert@redhat.com secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
Linux Linux kernel | <5.9.0 | |
redhat/kernel | <5.9 | 5.9 |
ubuntu/linux | <4.15.0-144.148 | 4.15.0-144.148 |
ubuntu/linux | <5.4.0-90.101 | 5.4.0-90.101 |
ubuntu/linux | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux | <4.4.0-239.273 | 4.4.0-239.273 |
ubuntu/linux-aws | <4.15.0-1103.110 | 4.15.0-1103.110 |
ubuntu/linux-aws | <5.4.0-1059.62 | 5.4.0-1059.62 |
ubuntu/linux-aws | <4.4.0-1117.123 | 4.4.0-1117.123 |
ubuntu/linux-aws | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws | <4.4.0-1155.170 | 4.4.0-1155.170 |
ubuntu/linux-aws-5.0 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-5.11 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-5.13 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-5.3 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-5.4 | <5.4.0-1059.62~18.04.1 | 5.4.0-1059.62~18.04.1 |
ubuntu/linux-aws-5.4 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-5.8 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-fips | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-hwe | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-aws-hwe | <4.15.0-1103.110~16.04.1 | 4.15.0-1103.110~16.04.1 |
ubuntu/linux-azure | <5.4.0-1063.66 | 5.4.0-1063.66 |
ubuntu/linux-azure | <4.15.0-1115.128~14.04.1 | 4.15.0-1115.128~14.04.1 |
ubuntu/linux-azure | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure | <4.15.0-1115.128~16.04.1 | 4.15.0-1115.128~16.04.1 |
ubuntu/linux-azure-4.15 | <4.15.0-1115.128 | 4.15.0-1115.128 |
ubuntu/linux-azure-4.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-5.11 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-5.13 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-5.3 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-5.4 | <5.4.0-1063.66~18.04.1 | 5.4.0-1063.66~18.04.1 |
ubuntu/linux-azure-5.4 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-edge | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-fde | <5.4.0-1063.66 | 5.4.0-1063.66 |
ubuntu/linux-azure-fde | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-fde-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-azure-fips | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-bluefield | <5.4.0-1021.24 | 5.4.0-1021.24 |
ubuntu/linux-bluefield | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-dell300x | <4.15.0-1022.26 | 4.15.0-1022.26 |
ubuntu/linux-dell300x | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-fips | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp | <5.4.0-1057.61 | 5.4.0-1057.61 |
ubuntu/linux-gcp | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp | <4.15.0-1100.113~16.04.1 | 4.15.0-1100.113~16.04.1 |
ubuntu/linux-gcp-4.15 | <4.15.0-1100.113 | 4.15.0-1100.113 |
ubuntu/linux-gcp-4.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp-5.11 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp-5.13 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp-5.3 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp-5.4 | <5.4.0-1057.61~18.04.1 | 5.4.0-1057.61~18.04.1 |
ubuntu/linux-gcp-5.8 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp-edge | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gcp-fips | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gke | <5.4.0-1055.58 | 5.4.0-1055.58 |
ubuntu/linux-gke | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gke-4.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gke-5.0 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gke-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gke-5.3 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gke-5.4 | <5.4.0-1055.58~18.04.1 | 5.4.0-1055.58~18.04.1 |
ubuntu/linux-gke-5.4 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gkeop | <5.4.0-1026.27 | 5.4.0-1026.27 |
ubuntu/linux-gkeop | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gkeop-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-gkeop-5.4 | <5.4.0-1026.27~18.04.1 | 5.4.0-1026.27~18.04.1 |
ubuntu/linux-gkeop-5.4 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-hwe | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-hwe | <4.15.0-144.148~16.04.1 | 4.15.0-144.148~16.04.1 |
ubuntu/linux-hwe-5.11 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-hwe-5.13 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-hwe-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-hwe-5.4 | <5.4.0-90.101~18.04.1 | 5.4.0-90.101~18.04.1 |
ubuntu/linux-hwe-5.4 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-hwe-5.8 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-hwe-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-hwe-edge | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-ibm | <5.4.0-1007.8 | 5.4.0-1007.8 |
ubuntu/linux-ibm | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-ibm-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-ibm-5.4 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-intel | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-intel-5.13 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-intel-iot-realtime | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-intel-iotg | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-intel-iotg-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-iot | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-kvm | <4.15.0-1092.94 | 4.15.0-1092.94 |
ubuntu/linux-kvm | <5.4.0-1049.51 | 5.4.0-1049.51 |
ubuntu/linux-kvm | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-kvm | <4.4.0-1118.128 | 4.4.0-1118.128 |
ubuntu/linux-laptop | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-lowlatency | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-lowlatency-hwe-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-lowlatency-hwe-5.19 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-lowlatency-hwe-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-lowlatency-hwe-6.8 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-lts-trusty | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-lts-xenial | <4.4.0-239.273~14.04.1 | 4.4.0-239.273~14.04.1 |
ubuntu/linux-lts-xenial | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-nvidia | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-nvidia-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-nvidia-6.8 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-nvidia-lowlatency | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-5.10 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-5.13 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-5.17 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-5.6 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-6.0 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-6.1 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-6.8 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oem-osp1 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oracle | <4.15.0-1072.80 | 4.15.0-1072.80 |
ubuntu/linux-oracle | <5.4.0-1057.61 | 5.4.0-1057.61 |
ubuntu/linux-oracle | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oracle | <4.15.0-1072.80~16.04.1 | 4.15.0-1072.80~16.04.1 |
ubuntu/linux-oracle-5.0 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oracle-5.11 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oracle-5.13 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oracle-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oracle-5.3 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-oracle-5.4 | <5.4.0-1057.61~18.04.1 | 5.4.0-1057.61~18.04.1 |
ubuntu/linux-oracle-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-raspi | <5.4.0-1046.50 | 5.4.0-1046.50 |
ubuntu/linux-raspi | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-raspi-5.4 | <5.4.0-1046.50~18.04.1 | 5.4.0-1046.50~18.04.1 |
ubuntu/linux-raspi-5.4 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-raspi-realtime | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-raspi2 | <4.15.0-1086.91 | 4.15.0-1086.91 |
ubuntu/linux-raspi2 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-raspi2-5.3 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-realtime | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-riscv | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-riscv-5.11 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-riscv-5.15 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-riscv-5.8 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-riscv-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-riscv-6.8 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-snapdragon | <4.15.0-1103.112 | 4.15.0-1103.112 |
ubuntu/linux-snapdragon | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-starfive | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-starfive-6.5 | <5.9~<4.4.263 | 5.9~ 4.4.263 |
ubuntu/linux-xilinx-zynqmp | <5.9~<4.4.263 | 5.9~ 4.4.263 |
debian/linux | 5.10.223-1 6.1.106-3 6.1.99-1 6.10.6-1 6.10.7-1 |
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(Appears in the following advisories)