CVE-2021-47186
Fixed in a distro release EPSS <1%
In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so need to check for it, otherwise the null key will be dereferenced later in tipc_crypto_key_xmit as can be seen in the trace [1]. [1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58
Products: Linux, linux_kernel
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | linux | 5.15.5-1 |
| Debian 13 | linux | 5.15.5-1 |
| Debian 14 | linux | 5.15.5-1 |
| SUSE Linux Enterprise High Availability Extension 15 SP5 | kernel-default | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5-RT_Update_18 | 1-150500.11.3.1 |
| SUSE Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_17 | 1-150500.11.3.1 |
| SUSE Linux Enterprise Micro 5.5 | kernel-default | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Micro 5.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 |
| SUSE Linux Enterprise Micro 5.5 | kernel-rt | 5.14.21-150500.13.64.1 |
| SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | 5.14.21-150500.13.64.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-64kb | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-default | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-zfcpdump | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-docs | 5.14.21-150500.55.73.2 |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-obs-build | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-syms | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Module for Legacy 15 SP5 | kernel-default | 5.14.21-150500.55.73.1 |
| SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-azure | 5.14.21-150500.33.63.1 |
| SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | 5.14.21-150500.33.63.1 |
| SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-syms-azure | 5.14.21-150500.33.63.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP5 | kernel-default | 5.14.21-150500.55.73.1 |
| SUSE Real Time Module 15 SP5 | kernel-rt | 5.14.21-150500.13.64.1 |
| SUSE Real Time Module 15 SP5 | kernel-rt_debug | 5.14.21-150500.13.64.1 |
| SUSE Real Time Module 15 SP5 | kernel-source-rt | 5.14.21-150500.13.64.1 |
| SUSE Real Time Module 15 SP5 | kernel-syms-rt | 5.14.21-150500.13.64.1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-aws-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-aws-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-azure | no fix |
| Ubuntu 18.04 LTS | linux-azure-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-azure-edge | no fix |
| Ubuntu 18.04 LTS | linux-gcp | no fix |
| Ubuntu 18.04 LTS | linux-gcp-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-gke-4.15 | no fix |
| Ubuntu 18.04 LTS | linux-gke-5.4 | no fix |
| Ubuntu 18.04 LTS | linux-gkeop-5.4 | no fix |
| Ubuntu 18.04 LTS | linux-hwe | no fix |
| Ubuntu 18.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-oem | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.3 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-aws-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-azure-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-azure-fde | no fix |
| Ubuntu 20.04 LTS | linux-gcp-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-gcp-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-gcp-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-gke | no fix |
| Ubuntu 20.04 LTS | linux-gke-5.15 | no fix |
| Ubuntu 20.04 LTS | linux-gkeop | no fix |
| Ubuntu 20.04 LTS | linux-hwe-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-hwe-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-hwe-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-intel-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.10 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.14 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.6 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.13 | no fix |
| Ubuntu 20.04 LTS | linux-oracle-5.8 | no fix |
| Ubuntu 20.04 LTS | linux-raspi2 | no fix |
| Ubuntu 20.04 LTS | linux-riscv | no fix |
| Ubuntu 20.04 LTS | linux-riscv-5.11 | no fix |
| Ubuntu 20.04 LTS | linux-riscv-5.8 | no fix |
| Ubuntu 22.04 LTS | linux-allwinner-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-aws-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-aws-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-azure-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-azure-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-azure-fde-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-azure-fde-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-gcp-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-gcp-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-hwe-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-hwe-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-intel-iot-realtime | no fix |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-lowlatency-hwe-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-nvidia-6.2 | no fix |
| Ubuntu 22.04 LTS | linux-oem-5.17 | no fix |
| Ubuntu 22.04 LTS | linux-oem-6.0 | no fix |
| Ubuntu 22.04 LTS | linux-oem-6.1 | no fix |
| Ubuntu 22.04 LTS | linux-realtime | no fix |
| Ubuntu 22.04 LTS | linux-riscv | no fix |
| Ubuntu 22.04 LTS | linux-riscv-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-starfive-5.19 | no fix |
| Ubuntu 22.04 LTS | linux-starfive-6.2 | no fix |
| Ubuntu 24.04 LTS | linux-raspi-realtime | no fix |
| openSUSE Leap 15.5 | dtb-aarch64 | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-64kb | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-azure | 5.14.21-150500.33.63.1 |
| openSUSE Leap 15.5 | kernel-debug | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-default | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 |
| openSUSE Leap 15.5 | kernel-docs | 5.14.21-150500.55.73.2 |
| openSUSE Leap 15.5 | kernel-kvmsmall | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-obs-build | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-obs-qa | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-rt | 5.14.21-150500.13.64.1 |
| openSUSE Leap 15.5 | kernel-rt_debug | 5.14.21-150500.13.64.1 |
| openSUSE Leap 15.5 | kernel-source | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-source-azure | 5.14.21-150500.33.63.1 |
| openSUSE Leap 15.5 | kernel-source-rt | 5.14.21-150500.13.64.1 |
| openSUSE Leap 15.5 | kernel-syms | 5.14.21-150500.55.73.1 |
| openSUSE Leap 15.5 | kernel-syms-azure | 5.14.21-150500.33.63.1 |
| openSUSE Leap 15.5 | kernel-syms-rt | 5.14.21-150500.13.64.1 |
| openSUSE Leap 15.5 | kernel-zfcpdump | 5.14.21-150500.55.73.1 |
| openSUSE Leap Micro 5.5 | kernel-default | 5.14.21-150500.55.73.1 |
| openSUSE Leap Micro 5.5 | kernel-default-base | 5.14.21-150500.55.73.1.150500.6.33.8 |
| openSUSE Leap Micro 5.5 | kernel-rt | 5.14.21-150500.13.64.1 |