[PATCH netfilter -stable,4.14 0/6] stable fixes for 4.14

Pablo Neira Ayuso
2023-05-11T15:42:06Z

Hi Greg, Sasha,

This is a backport of c1592a89942e ("netfilter: nf_tables: deactivate anonymous
set from preparation phase") which fixes CVE-2023-32233. This patch requires
dependency fixes which are not currently in the 4.14 branch.

The following list shows the backported patches, I am using original commit IDs
for reference:

1) cd5125d8f518 ("netfilter: nf_tables: split set destruction in deactivate and destroy phase")

2) f6ac85858976 ("netfilter: nf_tables: unbind set in rule from commit path")

3) 7f4dae2d7f03 ("netfilter: nft_hash: fix nft_hash_deactivate")

4) 6a0a8d10a366 ("netfilter: nf_tables: use-after-free in failing rule with bound set")

5) 273fe3f1006e ("netfilter: nf_tables: bogus EBUSY when deleting set after flush")

6) c1592a89942e ("netfilter: nf_tables: deactivate anonymous set from preparation phase")

Please apply to 4.14-stable.

Thanks.

Florian Westphal (1):
netfilter: nf_tables: split set destruction in deactivate and destroy phase

Pablo Neira Ayuso (5):
netfilter: nf_tables: unbind set in rule from commit path
netfilter: nft_hash: fix nft_hash_deactivate
netfilter: nf_tables: use-after-free in failing rule with bound set
netfilter: nf_tables: bogus EBUSY when deleting set after flush
netfilter: nf_tables: deactivate anonymous set from preparation phase

include/net/netfilter/nf_tables.h | 30 ++++++-
net/netfilter/nf_tables_api.c | 139 +++++++++++++++++++++---------
net/netfilter/nft_dynset.c | 22 ++++-
net/netfilter/nft_immediate.c | 6 +-
net/netfilter/nft_lookup.c | 21 ++++-
net/netfilter/nft_objref.c | 21 ++++-
net/netfilter/nft_set_hash.c | 2 +-
7 files changed, 194 insertions(+), 47 deletions(-)

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2.30.2