Re: [PATCH net] net: qrtr: fix a kernel-infoleak in qrtr_recvmsg()

2021-03-14 Thread patchwork-bot+netdevbpf
Hello: This patch was applied to netdev/net.git (refs/heads/master): On Fri, 12 Mar 2021 08:59:48 -0800 you wrote: > From: Eric Dumazet > > struct sockaddr_qrtr has a 2-byte hole, and qrtr_recvmsg() currently > does not clear it before copying kernel data to user space. > > It might be too lat

[PATCH net] net: qrtr: fix a kernel-infoleak in qrtr_recvmsg()

2021-03-12 Thread Eric Dumazet
From: Eric Dumazet struct sockaddr_qrtr has a 2-byte hole, and qrtr_recvmsg() currently does not clear it before copying kernel data to user space. It might be too late to name the hole since sockaddr_qrtr structure is uapi. BUG: KMSAN: kernel-infoleak in kmsan_copy_to_user+0x9c/0xb0 mm/kmsan/