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CVE-2023-6270

Kernel: aoe: improper reference count leads to use-after-free vulnerability

Published: 1/4/2024 Last updated: 11/20/2025 Reserved: 11/23/2023

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.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 7 High CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (27)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (10)

Product Vendor Version
Red Hat Enterprise Linux 6 Red Hat 5.2.2.1
Red Hat Enterprise Linux 9 Red Hat 5.3
Red Hat Enterprise Linux 6 Red Hat 13.0.5.0
Red Hat Enterprise Linux 7 Red Hat 13.0.5.1
Red Hat Enterprise Linux 9 Red Hat 13.0.5.2
Red Hat Enterprise Linux 9 Red Hat < 16.0.1115.1
Red Hat Enterprise Linux 7 Red Hat 6.0.0.beta3
Red Hat Enterprise Linux 8 Red Hat <= 1.3.1
Red Hat Enterprise Linux 7 Red Hat <= 0.9.83
Red Hat Enterprise Linux 8 Red Hat < *

References (12)