High · published May 1, 2024
In the Linux kernel, the following vulnerability has been resolved:
wireguard: netlink: access device through ctx instead of peer
The previous commit fixed a bug that led to a NULL peer->device being
dereferenced. It's actually easier and faster performance-wise to
instead get the device from ctx->wg. This semantically makes more sense
too, since ctx->wg->peer_allowedips.seq is compared with
ctx->allowedips_seq, basing them both in ctx. This also acts as a
defence in depth provision against freed peers.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 5.6, < 5.10.215 | 5.10.215 |
| linux/linux_kernel | ≥ 5.11, < 5.15.154 | 5.15.154 |
| linux/linux_kernel | ≥ 5.16, < 6.1.84 | 6.1.84 |
| linux/linux_kernel | ≥ 6.2, < 6.6.24 | 6.6.24 |
| linux/linux_kernel | ≥ 6.7, < 6.7.12 | 6.7.12 |
| linux/linux_kernel | ≥ 6.8, < 6.8.3 | 6.8.3 |
| debian/debian_linux | all versions | — |