From: Hangyu Hua hbh25y@gmail.com
[ Upstream commit 143de8d97d79316590475dc2a84513c63c863ddf ]
msg_data_sz return a 32bit value, but size is 16bit. This may lead to a bit overflow.
Signed-off-by: Hangyu Hua hbh25y@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/tipc/crypto.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c index d293614d5fc65..b5074957e8812 100644 --- a/net/tipc/crypto.c +++ b/net/tipc/crypto.c @@ -2287,7 +2287,7 @@ static bool tipc_crypto_key_rcv(struct tipc_crypto *rx, struct tipc_msg *hdr) struct tipc_crypto *tx = tipc_net(rx->net)->crypto_tx; struct tipc_aead_key *skey = NULL; u16 key_gen = msg_key_gen(hdr); - u16 size = msg_data_sz(hdr); + u32 size = msg_data_sz(hdr); u8 *data = msg_data(hdr); unsigned int keylen;