ACK: [SRU OEM-5.10/OEM-5.14 0/1] CVE-2021-4002

[Andrea Righi]

On Mon, Nov 29, 2021 at 01:15:38PM -0300, Thadeu Lima de Souza Cascardo wrote:
> https://www.openwall.com/lists/oss-security/2021/11/25/1
> 
> [Impact]
> Missing TLB flush on hugetlb unmapping may allow a different process to
> access another process memory, as long as it is using hugetlb mappings.
> 
> [Test case]
> POC from the link above was used to test it on amd64.
> 
> [Potential regression]
> hugetlb users may regress.
> 
> Nadav Amit (1):
>   hugetlbfs: flush TLBs correctly after huge_pmd_unshare

Clean upstream cherry pick. Looks good to me. Thanks!

Acked-by: Andrea Righi <andrea.righi at canonical.com>