From: Hangyu Hua <hbh25y@gmail.com> stable inclusion from stable-v5.10.104 commit e3850e211df6817e7a6c3999080a8bc4a63092c0 bugzilla: https://gitee.com/openeuler/kernel/issues/I56XAC Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ 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> Signed-off-by: Yu Liao <liaoyu15@huawei.com> Reviewed-by: Wei Li <liwei391@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- 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 d8a2f424786f..6f91b9a306dc 100644 --- a/net/tipc/crypto.c +++ b/net/tipc/crypto.c @@ -2280,7 +2280,7 @@ 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; -- 2.20.1