netfilter: nft_set_pipapo: walk over current view on netlink dump
commit 29b359cf6d95fd60730533f7f10464e95bd17c73 upstream.
The generation mask can be updated while netlink dump is in progress.
The pipapo set backend walk iterator cannot rely on it to infer what
view of the datastructure is to be used. Add notation to specify if user
wants to read/update the set.
Based on patch from Florian Westphal.
BUG=b/342562988
TEST=presubmit
RELEASE_NOTE=Fixed CVE-2024-27017 in the Linux kernel.
cos-patch: security-moderate
Fixes: 2b84e215f874 ("netfilter: nft_set_pipapo: .walk does not deal with generations")
Change-Id: I793fb2f125f0583e0f70a423cb6c2a64d627f1e1
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kernel CVE Triage Automation <cloud-image-kernel-cve-triage-automation@prod.google.com>
Reviewed-on: https://cos-review.googlesource.com/c/third_party/kernel/+/83930
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Arnav Kansal <rnv@google.com>
Reviewed-by: Anil Altinay <aaltinay@google.com>
3 files changed
