CVE-2026-90146bpf, xdp: move offload check into dev_xdp_install()
- 7.8HighCVSS base score
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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().
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 43 days later
· 43 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 026a4c28e1db3b0cb99cd9a3e495d4a8b632fa74 – < 4a0467819bc2423be8fc4c9834e8f42af2af0861
- affected 026a4c28e1db3b0cb99cd9a3e495d4a8b632fa74 – < bd06033625ec20b7bdec43d21f776fc1a5e9000e
- affected 026a4c28e1db3b0cb99cd9a3e495d4a8b632fa74 – < 486dbe7efec2be19cd3625be282f7f6b34a3f2c5
- affected 026a4c28e1db3b0cb99cd9a3e495d4a8b632fa74 – < f14b774ec9bd52d0f4ec29a6597a35fd107197f9
- affected 026a4c28e1db3b0cb99cd9a3e495d4a8b632fa74 – < ea7b35dcc9430293b861bc7bad0c546f193c85f9
- affected 026a4c28e1db3b0cb99cd9a3e495d4a8b632fa74 – < 03022dd874070768a7099f18b1944c633641315f
- affected 026a4c28e1db3b0cb99cd9a3e495d4a8b632fa74 – < ad27ed7d2309419a129078d781504f486b1b469a
- affected 5.9
- unaffected < 5.9
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.113 – ≤ 6.12.*
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/4a0467819bc2423be8fc4c9834e8f42af2af0861 (opens in a new tab)
- https://git.kernel.org/stable/c/bd06033625ec20b7bdec43d21f776fc1a5e9000e (opens in a new tab)
- https://git.kernel.org/stable/c/486dbe7efec2be19cd3625be282f7f6b34a3f2c5 (opens in a new tab)
- https://git.kernel.org/stable/c/f14b774ec9bd52d0f4ec29a6597a35fd107197f9 (opens in a new tab)
- https://git.kernel.org/stable/c/ea7b35dcc9430293b861bc7bad0c546f193c85f9 (opens in a new tab)
- https://git.kernel.org/stable/c/03022dd874070768a7099f18b1944c633641315f (opens in a new tab)
- https://git.kernel.org/stable/c/ad27ed7d2309419a129078d781504f486b1b469a (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-81739 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-90146)Record last updated .