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.
Fix
Patch, vendor advisory and mitigation references on NVD 14
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5 Patch
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068 Patch
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5 Patch
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f Patch
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996 Patch
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37 Patch
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47 Patch
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5 Patch
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068 Patch
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5 Patch
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f Patch
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996 Patch
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37 Patch
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.8 · linux, debianNVD modified 2026-10-15 01:17
Affected (CPE criteria) 2
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
References 16
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5 Patch
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068 Patch
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5 Patch
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f Patch
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996 Patch
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37 Patch
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47 Patch
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5 Patch
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068 Patch
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5 Patch
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f Patch
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996 Patch
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37 Patch
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47 Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html