CVE-2022-2905
First published: Fri Aug 26 2022(Updated: )
A bug in the x86 BPF JIT compiler. A bpf_tail_call with a key larger than the max_entries of the map can cause an out-of-bound access when the x86 JIT compiler tries to index bpf_array->ptr using the invalid key. References: <a href="https://www.openwall.com/lists/oss-security/2022/08/26/1">https://www.openwall.com/lists/oss-security/2022/08/26/1</a> <a href="https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel@iogearbox.net/">https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel@iogearbox.net/</a>
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.0 | |
| Linux Linux kernel | =6.0-rc1 | |
| Linux Linux kernel | =6.0-rc2 | |
| Linux Linux kernel | =6.0-rc3 | |
| Redhat Enterprise Linux | =8.0 | |
| Debian Debian Linux | =10.0 | |
| redhat/Linux kernel | <6.0 | 6.0 |
| ubuntu/linux | <5.15.0-53.59 | 5.15.0-53.59 |
| ubuntu/linux | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-aws | <5.15.0-1023.27 | 5.15.0-1023.27 |
| ubuntu/linux-aws | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-aws-5.0 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-aws-5.15 | <5.15.0-1023.27~20.04.1 | 5.15.0-1023.27~20.04.1 |
| ubuntu/linux-aws-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-aws-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-aws-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-aws-fips | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-aws-hwe | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure | <5.15.0-1023.29 | 5.15.0-1023.29 |
| ubuntu/linux-azure | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure-4.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure-5.15 | <5.15.0-1023.29~20.04.1 | 5.15.0-1023.29~20.04.1 |
| ubuntu/linux-azure-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure-edge | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure-fde | <5.15.0-1024.30.1 | 5.15.0-1024.30.1 |
| ubuntu/linux-azure-fde | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1029.36~20.04.1.1 | 5.15.0-1029.36~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-azure-fips | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-bluefield | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-dell300x | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-fips | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gcp | <5.15.0-1022.29 | 5.15.0-1022.29 |
| ubuntu/linux-gcp | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gcp-4.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gcp-5.15 | <5.15.0-1022.29~20.04.1 | 5.15.0-1022.29~20.04.1 |
| ubuntu/linux-gcp-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gcp-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gcp-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gcp-fips | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gke | <5.15.0-1020.25 | 5.15.0-1020.25 |
| ubuntu/linux-gke | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gke-4.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gke-5.0 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gke-5.15 | <5.15.0-1020.25~20.04.1 | 5.15.0-1020.25~20.04.1 |
| ubuntu/linux-gke-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gke-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gkeop | <5.15.0-1008.12 | 5.15.0-1008.12 |
| ubuntu/linux-gkeop | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gkeop-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-gkeop-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-hwe | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-hwe-5.15 | <5.15.0-53.59~20.04.1 | 5.15.0-53.59~20.04.1 |
| ubuntu/linux-hwe-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-hwe-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-hwe-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-hwe-edge | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-ibm | <5.15.0-1018.21 | 5.15.0-1018.21 |
| ubuntu/linux-ibm | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-ibm-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-ibm-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-intel | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-intel-5.13 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-intel-iotg | <5.15.0-1018.23 | 5.15.0-1018.23 |
| ubuntu/linux-intel-iotg | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1018.23~20.04.1 | 5.15.0-1018.23~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-iot | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-kvm | <5.15.0-1021.26 | 5.15.0-1021.26 |
| ubuntu/linux-kvm | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-laptop | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-lowlatency | <5.15.0-53.59 | 5.15.0-53.59 |
| ubuntu/linux-lowlatency | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-53.59~20.04.1 | 5.15.0-53.59~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-lowlatency-hwe-5.19 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-lts-xenial | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-nvidia | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-nvidia-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-5.10 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-5.14 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-5.17 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-5.6 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-6.0 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-6.1 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-6.8 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oem-osp1 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oracle | <5.15.0-1022.28 | 5.15.0-1022.28 |
| ubuntu/linux-oracle | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oracle-5.0 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oracle-5.13 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oracle-5.15 | <5.15.0-1022.28~20.04.1 | 5.15.0-1022.28~20.04.1 |
| ubuntu/linux-oracle-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oracle-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-oracle-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-raspi | <5.15.0-1018.20 | 5.15.0-1018.20 |
| ubuntu/linux-raspi | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-raspi-5.4 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-raspi2 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-riscv | <5.15.0-1023.27 | 5.15.0-1023.27 |
| ubuntu/linux-riscv | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-riscv-5.15 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-riscv-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-snapdragon | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-starfive | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-starfive-6.5 | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| ubuntu/linux-xilinx-zynqmp | <6.0~<5.15.64 | 6.0~ 5.15.64 |
| debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.10-1 6.9.12-1 |
Remedy
Ensure the kernel.unprivileged_bpf_disabled sysctl is set to 2 (the default) or 1.
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2121800
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel@iogearbox.net/
- https://launchpad.net/bugs/cve/CVE-2022-2905
- https://www.openwall.com/lists/oss-security/2022/08/26/1
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2121801
- https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel%40iogearbox.net/
- https://ubuntu.com/security/notices/USN-5729-1
- https://ubuntu.com/security/notices/USN-5729-2
- https://www.cve.org/CVERecord?id=CVE-2022-2905
- https://nvd.nist.gov/vuln/detail/CVE-2022-2905
- https://security-tracker.debian.org/tracker/CVE-2022-2905
- https://git.kernel.org/linus/d2e4c1e6c2947269346054ac8937ccfe9e0bcc6b
- https://git.kernel.org/linus/a657182a5c5150cdfacb6640aad1d2712571a409
- https://ubuntu.com/security/CVE-2022-2905
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