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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2023-52939

mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 97b27821b4854ca744946dae32a3f2fd55bcd5bc to < b79ba5953f6fdc5559389ad415620bffc24f024baffected
  • 97b27821b4854ca744946dae32a3f2fd55bcd5bc to < ac86f547ca1002aec2ef66b9e64d03f45bbbfbb9affected

Linux Linux

Default version status: affected

  • 5.4affected
  • 0 to < 5.4unaffected
  • 6.1.11 to ≤ 6.1.*unaffected
  • 6.2 to ≤ *unaffected

References