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tipc: fix a bit overflow in tipc_crypto_key_rcv()

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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>
This commit is contained in:
Hangyu Hua 2022-02-11 12:55:10 +08:00 committed by David S. Miller
parent bf8e59fd31
commit 143de8d97d
1 changed files with 1 additions and 1 deletions
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2
net/tipc/crypto.c
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@ -2276,7 +2276,7 @@ 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;