CVE-2021-47090

In the Linux kernel, the following vulnerability has been resolved: mm/hwpoison: clear MFCOUNTINCREASED before retrying getanypage Hulk Robot reported a panic in putpagetestzero when testing madvise with MADVSOFTOFFLINE. The BUG is triggered when retrying getanypage. This is because we keep...

CVE-2021-47090

CVE-2021-47090 affects the Linux kernel memory manager (mm/hwpoison) where MF_COUNT_INCREASED is not cleared before retrying get_any_page, triggering a kernel BUG in release_pages() when MADV_SOFT_OFFLINE is tested. The issue leads to a kernel panic/BUG_ON scenario (VM_BUG_ON_PAGE) during page re...