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[PATCH 3.14 003/130] netfilter: nf_tables: fix bogus warning in nft_data_uninit()

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  [PATCH 3.14 003/130] netfilter: nf_tables: fix bogus warning in nft_data_uninit() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-03-02 03:20 +0100

#1347663 — [PATCH 3.14 003/130] netfilter: nf_tables: fix bogus warning in nft_data_uninit()

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mirek Kratochvil <exa.exa@gmail.com>

commit 960bd2c26421d321e890f1936938196ead41976f upstream.

The values 0x00000000-0xfffffeff are reserved for userspace datatype. When,
deleting set elements with maps, a bogus warning is triggered.

WARNING: CPU: 0 PID: 11133 at net/netfilter/nf_tables_api.c:4481 nft_data_uninit+0x35/0x40 [nf_tables]()

This fixes the check accordingly to enum definition in
include/linux/netfilter/nf_tables.h

Fixes: https://bugzilla.netfilter.org/show_bug.cgi?id=1013
Signed-off-by: Mirek Kratochvil <exa.exa@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/netfilter/nf_tables_api.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3316,9 +3316,9 @@ EXPORT_SYMBOL_GPL(nft_data_init);
  */
 void nft_data_uninit(const struct nft_data *data, enum nft_data_types type)
 {
-	switch (type) {
-	case NFT_DATA_VALUE:
+	if (type < NFT_DATA_VERDICT)
 		return;
+	switch (type) {
 	case NFT_DATA_VERDICT:
 		return nft_verdict_uninit(data);
 	default:

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