diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-03-17 12:04:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-28 08:41:44 +0200 |
| commit | 88791b79a1eb2ba94e95d039243e28433583a67b (patch) | |
| tree | f9a181842ee8b15bb048f9b33839f2f98c3ae822 | |
| parent | ea0bc620490a594b785d0732bc70557ee478bd5a (diff) | |
| download | linux-stable-88791b79a1eb2ba94e95d039243e28433583a67b.tar.gz linux-stable-88791b79a1eb2ba94e95d039243e28433583a67b.tar.bz2 linux-stable-88791b79a1eb2ba94e95d039243e28433583a67b.zip | |
netfilter: nf_tables: initialize registers in nft_do_chain()
commit 4c905f6740a365464e91467aa50916555b28213d upstream.
Initialize registers to avoid stack leak into userspace.
Fixes: 96518518cc41 ("netfilter: add nftables")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/netfilter/nf_tables_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c index a3850414dba2..7dfaad783cd5 100644 --- a/net/netfilter/nf_tables_core.c +++ b/net/netfilter/nf_tables_core.c @@ -144,7 +144,7 @@ nft_do_chain(struct nft_pktinfo *pkt, void *priv) struct nft_rule *const *rules; const struct nft_rule *rule; const struct nft_expr *expr, *last; - struct nft_regs regs; + struct nft_regs regs = {}; unsigned int stackptr = 0; struct nft_jumpstack jumpstack[NFT_JUMP_STACK_SIZE]; bool genbit = READ_ONCE(net->nft.gencursor); |