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Vulnerability · Published Mar 27, 2025 · Assigned by Linux

CVE-2023-52939mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()

Medium 5.5

In plain English

A medium-severity null pointer dereference in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 88.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath() As commit 18365225f044 ("hwpoison, memcg: forcibly uncharge LRU pages"), hwpoison will forcibly uncharg a LRU hwpoisoned page, the folio_memcg could be NULl, then, mem_cgroup_track_foreign_dirty_slowpath() could occurs a NULL pointer dereference, let's do not record the foreign writebacks for folio memcg is null in mem_cgroup_track_foreign_dirty() to fix it.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.11-1DEBIAN-CVE-2023-52939
Debian:13linux6.1.11-1DEBIAN-CVE-2023-52939
Debian:14linux6.1.11-1DEBIAN-CVE-2023-52939
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2023-52939
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52939
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-52939
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2023-52939

Affected products (as reported)

VendorProductVersions
Linux Linux 97b27821b4854ca744946dae32a3f2fd55bcd5bc – before b79ba5953f6fdc5559389ad415620bffc24f024b97b27821b4854ca744946dae32a3f2fd55bcd5bc – before ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9
Linux Linux 5.4

Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References