| Name | CVE-2026-90146 |
| Description | In the Linux kernel, the following vulnerability has been resolved: bpf, xdp: move offload check into dev_xdp_install() bpf_xdp_link_update() calls dev_xdp_install() directly and skips dev_xdp_attach(), so the checks in dev_xdp_attach() do not run. A user can make an XDP link with a normal program and then swap in an offloaded or device-bound program with BPF_LINK_UPDATE, which puts it on the software path. dev_xdp_install() is the one place all three paths go through: "ip link set xdp" and BPF_LINK_CREATE reach it via dev_xdp_attach(), and BPF_LINK_UPDATE calls it directly. So move the program checks (offloaded, bound to another device, device-bound in generic mode, native vs generic, DEVMAP and CPUMAP) there, and keep only the netlink-flag check (XDP_FLAGS_UPDATE_IF_NOEXIST) in dev_xdp_attach(). |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4850-1, DSA-6568-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bookworm | 6.1.176-1 | vulnerable |
| bookworm (security) | 6.1.190-1 | vulnerable | |
| trixie | 6.12.107-1 | vulnerable | |
| trixie (security) | 6.12.113-1 | fixed | |
| forky | 7.2.11-1 | fixed | |
| sid | 7.2.12-1 | fixed | |
| linux-6.12 (PTS) | bookworm (security) | 6.12.113-1~deb12u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | trixie | 6.12.113-1 | DSA-6568-1 | ||
| linux | source | (unstable) | 7.2.6-1 | |||
| linux-6.12 | source | bookworm | 6.12.113-1~deb12u1 | DLA-4850-1 |
https://git.kernel.org/linus/ad27ed7d2309419a129078d781504f486b1b469a (7.3-rc1)