CVE-2023-52939

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.

The following products are affected by CVE-2023-52939 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2023-52939.

URL	Resource
https://git.kernel.org/stable/c/ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9
https://git.kernel.org/stable/c/b79ba5953f6fdc5559389ad415620bffc24f024b
https://lore.kernel.org/linux-cve-announce/2025032722-CVE-2023-52939-8bb1@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-52939
https://www.cve.org/CVERecord?id=CVE-2023-52939