Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 97b27821b4854ca744946dae32a3f2fd55bcd5bc before b79ba5953f6fdc5559389ad415620bffc24f024b; affected 97b27821b4854ca744946dae32a3f2fd55bcd5bc before ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9 |
| Linux / Linux | affected 5.4; unaffected 0 before 5.4; unaffected 6.1.11 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b79ba5953f6fdc5559389ad415620bffc24f024b
- https://git.kernel.org/stable/c/ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9
ADP enrichment
No English description supplied.
No references supplied.