Re: [PATCH 6.1.y] xfrm: fix sk_dst_cache double-free in xfrm_user_policy()

From: Sasha Levin

Date: Tue Aug 25 2026 - 07:50:31 EST


On Fri, Aug 21, 2026 at 12:42:00AM -0400, Artem Dinaburg wrote:
> Please queue this unchanged upstream fix for CVE-2026-64581 in 6.1.y. An
> unprivileged namespace user can race UDP transmit with per-socket XFRM policy
> replacement and double-release the cached destination.

Queued for 6.18, 6.12, 6.6, 6.1, 5.15 and 5.10, thanks.

--
Thanks,
Sasha