Description (CNA)
An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.5
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c444eb564fb16645c172d550359cb3d75fe8a040
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2045
- https://security.netapp.com/advisory/ntap-20210108-0002/
ADP enrichment
No English description supplied.