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CVE-2023-4133

Kernel: cxgb4: use-after-free in ch_flower_stats_cb()

Published: 8/3/2023 Last updated: 11/6/2025 Reserved: 8/3/2023

A use-after-free vulnerability was found in the cxgb4 driver in the Linux kernel. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.

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

Metrics

Version Score Severity Vector String
3.1 5.5 Medium CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 (16)

Product Vendor Version
Red Hat Enterprise Linux 9 Red Hat 15.1(3)SVE
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 6 Red Hat 3.8.0E
Red Hat Enterprise Linux 7 Red Hat 15.0(2)EK
Red Hat Enterprise Linux 6 Red Hat 6.8
Red Hat Enterprise Linux 7 Red Hat <= 1.1.7
Red Hat Enterprise Linux 8 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat Android-11 Android-10
Red Hat Enterprise Linux 9 Red Hat SAP BPC
Red Hat Enterprise Linux 8 Red Hat 16.2.2
Red Hat Enterprise Linux 9 Red Hat n/a
Red Hat Enterprise Linux 7 Red Hat < 16.6
Red Hat Enterprise Linux 9 Red Hat < 6.8
Red Hat Enterprise Linux 8 Red Hat Android-11 Android-12 Android-12L Android-13
Red Hat Enterprise Linux 7 Red Hat < 9.5
Red Hat Enterprise Linux 8 Red Hat < c8ea2c31f5ea437199b239d76ad5db27343edb0c

References (20)

Credits (2)