These two functions are called in sendmsg path, and the 'len' is passed from user-space, so we should not allow malicious users to OOM kernel on purpose. Reported-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Cc: Lauro Ramos Venancio <lauro.venancio@xxxxxxxxxxxxx> Cc: Aloisio Almeida Jr <aloisio.almeida@xxxxxxxxxxxxx> Cc: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx> Signed-off-by: Cong Wang <xiyou.wangcong@xxxxxxxxx> --- net/nfc/llcp_commands.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/nfc/llcp_commands.c b/net/nfc/llcp_commands.c index 3621a90..3425532 100644 --- a/net/nfc/llcp_commands.c +++ b/net/nfc/llcp_commands.c @@ -663,7 +663,7 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock, return -ENOBUFS; } - msg_data = kzalloc(len, GFP_KERNEL); + msg_data = kmalloc(len, GFP_USER | __GFP_NOWARN); if (msg_data == NULL) return -ENOMEM; @@ -729,7 +729,7 @@ int nfc_llcp_send_ui_frame(struct nfc_llcp_sock *sock, u8 ssap, u8 dsap, if (local == NULL) return -ENODEV; - msg_data = kzalloc(len, GFP_KERNEL); + msg_data = kmalloc(len, GFP_USER | __GFP_NOWARN); if (msg_data == NULL) return -ENOMEM; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
