CVE-2023-52939
mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 27, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
97b27821b4854ca744946dae32a3f2fd55bcd5bc < b79ba5953f6fdc5559389ad415620bffc24f024b 97b27821b4854ca744946dae32a3f2fd55bcd5bc < ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9
Linux / Linux
5.4