CVE-2026-53233netdev: fix double-free in netdev_nl_bind_rx_doit()
- 7.8HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 93% 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: netdev: fix double-free in netdev_nl_bind_rx_doit() Sashiko flags that genlmsg_reply() always consumes the skb. The error path calls nlmsg_free(rsp) so we can't jump directly to it. Let's not unbind, just propagate the error to the user. This is the typical way of handling genlmsg_reply() failures. They shouldn't happen unless user does something silly like calling the kernel with an already-full rcvbuf.
Timeline
ID reserved
By Linux
- 16 days later
· 16 days later
Published
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 |
|---|---|---|---|
| NVDNVD · Analyzed | 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)
- 0.18% · top 93% 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 170aafe35cb98e0f3fbacb446ea86389fbce22ea – < e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599
- affected 170aafe35cb98e0f3fbacb446ea86389fbce22ea – < c299321bc6232770ce378d6fa6bc46004d2d7fdb
- affected 170aafe35cb98e0f3fbacb446ea86389fbce22ea – < 9b019376cbee10c4f9184d1745fa37d156e36f30
- affected 170aafe35cb98e0f3fbacb446ea86389fbce22ea – < c849de7d8757a7af801fc4a4058f71d481d367f2
- affected 6.12
- unaffected < 6.12
- unaffected 6.12.94 – ≤ 6.12.*
- unaffected 6.18.36 – ≤ 6.18.*
- unaffected 7.0.13 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References4
- https://git.kernel.org/stable/c/e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599 (opens in a new tab)
- https://git.kernel.org/stable/c/c299321bc6232770ce378d6fa6bc46004d2d7fdb (opens in a new tab)
- https://git.kernel.org/stable/c/9b019376cbee10c4f9184d1745fa37d156e36f30 (opens in a new tab)
- https://git.kernel.org/stable/c/c849de7d8757a7af801fc4a4058f71d481d367f2 (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-2026-39324 (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-2026-53233)Record last updated .