The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 4.5.0 (excluding) |
| Linux_kernel | Linux | 4.5.0-rc1 (including) | 4.5.0-rc1 (including) |
| Linux_kernel | Linux | 4.5.0-rc2 (including) | 4.5.0-rc2 (including) |
| Linux_kernel | Linux | 4.5.0-rc3 (including) | 4.5.0-rc3 (including) |
| Linux | Ubuntu | upstream | * |
| Linux | Ubuntu | wily | * |
| Linux-armadaxp | Ubuntu | upstream | * |
| Linux-aws | Ubuntu | upstream | * |
| Linux-flo | Ubuntu | trusty | * |
| Linux-flo | Ubuntu | upstream | * |
| Linux-fsl-imx51 | Ubuntu | upstream | * |
| Linux-gke | Ubuntu | upstream | * |
| Linux-goldfish | Ubuntu | trusty | * |
| Linux-goldfish | Ubuntu | upstream | * |
| Linux-grouper | Ubuntu | trusty | * |
| Linux-grouper | Ubuntu | upstream | * |
| Linux-hwe | Ubuntu | upstream | * |
| Linux-hwe-edge | Ubuntu | upstream | * |
| Linux-linaro-omap | Ubuntu | precise | * |
| Linux-linaro-omap | Ubuntu | upstream | * |
| Linux-linaro-shared | Ubuntu | precise | * |
| Linux-linaro-shared | Ubuntu | upstream | * |
| Linux-linaro-vexpress | Ubuntu | precise | * |
| Linux-linaro-vexpress | Ubuntu | upstream | * |
| Linux-lts-quantal | Ubuntu | precise | * |
| Linux-lts-quantal | Ubuntu | upstream | * |
| Linux-lts-raring | Ubuntu | precise | * |
| Linux-lts-raring | Ubuntu | upstream | * |
| Linux-lts-saucy | Ubuntu | precise | * |
| Linux-lts-saucy | Ubuntu | upstream | * |
| Linux-lts-trusty | Ubuntu | upstream | * |
| Linux-lts-utopic | Ubuntu | upstream | * |
| Linux-lts-vivid | Ubuntu | upstream | * |
| Linux-lts-wily | Ubuntu | trusty | * |
| Linux-lts-wily | Ubuntu | upstream | * |
| Linux-lts-xenial | Ubuntu | upstream | * |
| Linux-maguro | Ubuntu | trusty | * |
| Linux-maguro | Ubuntu | upstream | * |
| Linux-mako | Ubuntu | trusty | * |
| Linux-mako | Ubuntu | upstream | * |
| Linux-manta | Ubuntu | trusty | * |
| Linux-manta | Ubuntu | upstream | * |
| Linux-qcm-msm | Ubuntu | precise | * |
| Linux-qcm-msm | Ubuntu | upstream | * |
| Linux-raspi2 | Ubuntu | upstream | * |
| Linux-raspi2 | Ubuntu | vivid/ubuntu-core | * |
| Linux-raspi2 | Ubuntu | wily | * |
| Linux-snapdragon | Ubuntu | upstream | * |
| Linux-ti-omap4 | Ubuntu | upstream | * |