-----BEGIN PGP SIGNATURE-----
iQJdBAABCABHFiEEgKkgxbID4Gn1hq6fcJGo2a1f9gAFAmpOUggbFIAAAAAABAAO
bWFudTIsMi41KzEuMTIsMiwyDRxmd0BzdHJsZW4uZGUACgkQcJGo2a1f9gBl3g//
eKE4GL8PgftaxvGbgbPhf8FOeP8zLvR8aC7JU3BhI5HGcRrs8a9rE+jRVauffKqf
c9bQhcwWLtOKa9kg2MIcPKUhu71TT+eelkfXjLQoMdLdRBOZlDqtFDAVOgHn94ZA
k5UCmur34u9Kxwh3NASbiwCP53tr4w7Uw48y8oCG0f8avzESv7WRvZn+fECDTdcS
tTuTmEtislR8NphI03oX1u0s/6k/VnPCz+C+fo5eKp0l5x9tjcpBJtcdZgkwRmYa
C8p3N4XxoqlpI92hAOoRhSzArOcT01MjMIJXrg1MTuT8G17OtMb1s7EMFsmeDNnD
omOBiokkN6lYUi9TAWt3hFe2JB4T2kAaJf/eJpznvyNJiLvcPjJtUTOwbagtVy6w
wOr5/RuRDn0lXbfrGwwZflPbH7EL1WnaWpWMlWnLdH+S/J/Q+mmIY/tkl1v/ydNe
D6lIM5TbxedDZ/Pk6xor8B0ZdpABVrE14JHge6ChpmT31phQfx+xbcUADAPjpDxF
B4gjZkXCurDlVUmNIfIK84y+gyB3nC0UtwzsyMU/VtC4JT6Q+oi8Rq4eUyCebyCQ
vbBdoe/tAt+5B+WqYvtG1pv3ooYorR0f25TJq5p5QbGtEG5sv3FXBhRD8ADGCUPz
JRQngzjK/D3+nAiUd+3vDJIZwHKwG8QgehBdDQlsHx0=
=/dia
-----END PGP SIGNATURE-----
Merge tag 'nf-26-07-08' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Florian Westphal says:
====================
netfilter: updates for net
The following patchset contains Netfilter fixes for *net*.
Most of these are LLM fixes for old issues flagged by sashiko/LLMs.
Many of these trigger drive-by-findings in sashiko. In particular:
- many load/store tearing and missing memory barriers, races
etc. in ipset, esp. with GC and resizing.
Keeping the proposed patches spinning for yet-another-iteration
keeps legit fixes back, so I prefer to add these now and follow
up with other reports later.
- flowtable work queue still has possible races with teardown,
but same rationale as with ipset: drive-by findings, not
problems coming with the flowtable IPIP changeset in this PR.
- ever since unreadable frag skb support was added in 6.12, we can no
longer do: BUG_ON(skb_copy_bits( ...): it will fire with such skbs.
Mina Almasry is looking at similar patterns elsewhere in the stack.
1) Guard skb->mac_header adjustment after IPv6 defragmentation in
nf_conntrack_reasm. From Xiang Mei.
2) NUL-terminate ebtables table names before calling find_table_lock() to
prevent stack-out-of-bounds reads. Also from Xiang Mei.
3) Zero the ebtables chainstack array, else error unwind may free bogus
pointer when CPU mask is sparse. All three issues date from 2.6 days.
4) Ensure ebtables module names are c-strings, same bug pattern as 2).
Bug added in 4.6.
5) Fix catchall element handling for inverted lookups in nft_lookup. Fold the
catchall lookup into ext before computing the match status. Was like
this ever since catchall elements got introduced in 5.13.
From Tamaki Yanagawa.
6-9) ipset updates from Jozsef Kadlecsik:
- mark rcu protected areas correctly
- address gc and resize clash in the comment extension
- add/del backlog cleanup in the error path
- allocate right size for the generic hash structure
10-12): IPIP flowtable updates from Pablo Neira Ayuso:
- Use the current direction's route when pushing IPIP headers
Fix incorrect headroom and fragmentation offset calculations.
- Avoid hardware offload for IPIP tunnels due to lack of driver support.
- Support IPIP tunnels with direct xmit in netfilter flowtable.
dst_cache and dst_cookie are moved outside the union to share route
state across flows. This is a followup to work done in 6.19 cycle.
13) Don't BUG() on skb_copy_bits error. Handle unreadable fragments by
either returning an error or restricting the copy operations to linear area,
This became an issue when unreable frag support was merged in 6.12.
14-16): IPVS updates from Yizhou Zhao:
- Pass parsed transport offset to IPVS state handlers.
update callback signatures.
- use correct transport header offset on state lookp in TCP.
As-is it was possible for ipv6 extension header data to be
treated as L4 header.
- same for SCTP. This was also broken since 2.6 days.
17) Ensure inner IP headers in ICMP errors are in the skb headroom after
stripping outer headers. Add more checks for the length of inner headers.
This was broken since 3.7 days.
From Julian Anastasov.
netfilter pull request nf-26-07-08
* tag 'nf-26-07-08' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
ipvs: ensure inner headers in ICMP errors are in headroom
ipvs: use parsed transport offset in SCTP state lookup
ipvs: use parsed transport offset in TCP state lookup
ipvs: pass parsed transport offset to state handlers
netfilter: handle unreadable frags
netfilter: flowtable: support IPIP tunnel with direct xmit
netfilter: flowtable: IPIP tunnel hardware offload is not yet support
netfilter: flowtable: use dst in this direction when pushing IPIP header
netfilter: ipset: allocate the proper memory for the generic hash structure
netfilter: ipset: cleanup the add/del backlog when resize failed
netfilter: ipset: exclude gc when resize is in progress
netfilter: ipset: mark the rcu locked areas properly
netfilter: nft_lookup: fix catchall element handling with inverted lookups
netfilter: ebtables: module names must be null-terminated
netfilter: ebtables: zero chainstack array
netfilter: ebtables: terminate table name before find_table_lock()
netfilter: nf_conntrack_reasm: guard mac_header adjustment after IPv6 defrag
====================
Link: https://patch.msgid.link/20260708140309.19633-1-fw@strlen.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
24c4c88259