Description
A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution.
Affected products
debian: debian linux; linux: linux kernel; fedoraproject: fedora
References6
- access.redhat.com/security/cve/CVE-2023-6270 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2256786 Issue TrackingThird Party Advisory
- access.redhat.com/security/cve/CVE-2023-6270 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2256786 Issue TrackingThird Party Advisory
- lists.debian.org/debian-lts-announce/2024/06/msg00017.html Third Party Advisory
- lists.debian.org/debian-lts-announce/2024/06/msg00020.html Third Party Advisory
Metrics
- CVSS 3.1
-
7.0
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 35 · as of 5 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.