kernel-ark/net/9p
Will Deacon b9cdc88df8 virtio: 9p: correctly pass physical address to userspace for high pages
When using a virtio transport, the 9p net device may pass the physical
address of a kernel buffer to userspace via a scatterlist inside a
virtqueue. If the kernel buffer is mapped outside of the linear mapping
(e.g. highmem), then virt_to_page will return a bogus value and we will
populate the scatterlist with junk.

This patch uses kmap_to_page when populating the page array for a kernel
buffer.

Cc: stable@kernel.org
Cc: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-10-22 18:19:36 +10:30
..
client.c net/9p: Check errno validity 2012-09-06 13:54:55 -05:00
error.c 9p: Reduce object size with CONFIG_NET_9P_DEBUG 2012-01-05 10:51:44 -06:00
Kconfig 9p: remove experimental tag from tested configurations 2011-05-25 08:46:38 -05:00
Makefile
mod.c 9p: Reduce object size with CONFIG_NET_9P_DEBUG 2012-01-05 10:51:44 -06:00
protocol.c 9p: fix min_t() casting in p9pdu_vwritef() 2012-06-27 15:26:24 -07:00
protocol.h net/9p: Convert net/9p protocol dumps to tracepoints 2011-10-24 11:13:12 -05:00
trans_common.c fs/9p: Update zero-copy implementation in 9p 2011-10-24 11:13:11 -05:00
trans_common.h fs/9p: Update zero-copy implementation in 9p 2011-10-24 11:13:11 -05:00
trans_fd.c The following changes since commit 4cbe5a555f: 2012-10-12 09:59:23 +09:00
trans_rdma.c 9p: Reduce object size with CONFIG_NET_9P_DEBUG 2012-01-05 10:51:44 -06:00
trans_virtio.c virtio: 9p: correctly pass physical address to userspace for high pages 2012-10-22 18:19:36 +10:30
util.c 9p: Reduce object size with CONFIG_NET_9P_DEBUG 2012-01-05 10:51:44 -06:00