mirror of https://github.com/torvalds/linux.git
91a79b7922
recent patches to add a WARN() when replacing skb dst entry found an
old bug:
WARNING: include/linux/skbuff.h:1165 skb_dst_check_unset include/linux/skbuff.h:1164 [inline]
WARNING: include/linux/skbuff.h:1165 skb_dst_set include/linux/skbuff.h:1210 [inline]
WARNING: include/linux/skbuff.h:1165 nf_reject_fill_skb_dst+0x2a4/0x330 net/ipv4/netfilter/nf_reject_ipv4.c:234
[..]
Call Trace:
nf_send_unreach+0x17b/0x6e0 net/ipv4/netfilter/nf_reject_ipv4.c:325
nft_reject_inet_eval+0x4bc/0x690 net/netfilter/nft_reject_inet.c:27
expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
..
This is because blamed commit forgot about loopback packets.
Such packets already have a dst_entry attached, even at PRE_ROUTING stage.
Instead of checking hook just check if the skb already has a route
attached to it.
Fixes:
|
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| ip6_tables.c | ||
| ip6t_NPT.c | ||
| ip6t_REJECT.c | ||
| ip6t_SYNPROXY.c | ||
| ip6t_ah.c | ||
| ip6t_eui64.c | ||
| ip6t_frag.c | ||
| ip6t_hbh.c | ||
| ip6t_ipv6header.c | ||
| ip6t_mh.c | ||
| ip6t_rpfilter.c | ||
| ip6t_rt.c | ||
| ip6t_srh.c | ||
| ip6table_filter.c | ||
| ip6table_mangle.c | ||
| ip6table_nat.c | ||
| ip6table_raw.c | ||
| ip6table_security.c | ||
| nf_conntrack_reasm.c | ||
| nf_defrag_ipv6_hooks.c | ||
| nf_dup_ipv6.c | ||
| nf_reject_ipv6.c | ||
| nf_socket_ipv6.c | ||
| nf_tproxy_ipv6.c | ||
| nft_dup_ipv6.c | ||
| nft_fib_ipv6.c | ||
| nft_reject_ipv6.c | ||