ACK: [SRU Groovy,Focal/linux-oem-5.10/Hirsute 0/2] CVE-2021-3490 fixups

[Tim Gardner]

Acked-by: Tim Gardner <tim.gardner at canonical.com>

On 5/26/21 6:12 PM, Thadeu Lima de Souza Cascardo wrote:
> We ended up applying a different fix for CVE-2021-3490. The upstream version is
> less restricted on the bounds for the cases where the lower 32-bits are known.
> 
> This has been tested against reproducers for the original issue. Other tests
> for different bounds have been tested as well.
> 
> Daniel Borkmann (1):
>    gpf: Fix alu32 const subreg bound tracking on bitwise operations
> 
> Thadeu Lima de Souza Cascardo (1):
>    UBUNTU: SAUCE: Revert "UBUNTU: SAUCE: bpf: verifier: fix ALU32 bounds
>      tracking with bitwise ops"
> 
>   kernel/bpf/verifier.c | 22 +++++++++++++++++++++-
>   1 file changed, 21 insertions(+), 1 deletion(-)
> 

-- 
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Tim Gardner
Canonical, Inc