« List of all CVEs

CVE-2023-4732

Kernel: race between task migrating pages and another task calling exit_mmap to release those same pages getting invalid opcode bug in include/linux/swapops.h

Published: 10/3/2023 Last updated: 11/7/2025 Reserved: 9/2/2023

A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.

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

Metrics

Version Score Severity Vector String
3.1 4.7 Medium CVSS:3.1/AV:L/AC:H/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 (15)

Product Vendor Version
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Red Hat 12.1.0
Red Hat Enterprise Linux 7 Red Hat 5.0
Red Hat Enterprise Linux 6 Red Hat 2.5.0.9
Red Hat Enterprise Linux 9 Red Hat 6.2(13a)
Red Hat Enterprise Linux 7 Red Hat < 10.0.17763.5696
Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat 2.5.0.8
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat Interactive Graphical SCADA System (IGSS) Definition (Def.exe) V15.0.0.21041 and prior
Red Hat Enterprise Linux 8 Red Hat 5.0.2
Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat < 10.0.17763.3287
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat 2.0
Red Hat Enterprise Linux 9 Red Hat < 10.0.20348.887
Red Hat Enterprise Linux 9 Red Hat < 12.13
Red Hat Enterprise Linux 8 Red Hat Office for Mac 2011 and 2016
Red Hat Enterprise Linux 7 Red Hat < 10.0.19043.1889
Red Hat Enterprise Linux 8 Red Hat n/a

References (24)