Bug 2492285 (CVE-2026-53001) - CVE-2026-53001 kernel: netfilter: xtables: restrict several matches to inet family
Summary: CVE-2026-53001 kernel: netfilter: xtables: restrict several matches to inet f...
Keywords:
Status: NEW
Alias: CVE-2026-53001
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-24 18:03 UTC by OSIDB Bzimport
Modified: 2026-06-25 15:21 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-06-24 18:03:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

netfilter: xtables: restrict several matches to inet family

This is a partial revert of:

  commit ab4f21e6fb1c ("netfilter: xtables: use NFPROTO_UNSPEC in more extensions")

to allow ipv4 and ipv6 only.

- xt_mac
- xt_owner
- xt_physdev

These extensions are not used by ebtables in userspace.

Moreover, xt_realm is only for ipv4, since dst->tclassid is ipv4
specific.
Comment 1 Mauro Matteo Cascella 2026-06-25 15:16:21 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062447-CVE-2026-53001-160e@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.