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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> |
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.. | ||
client.c | ||
error.c | ||
Kconfig | ||
Makefile | ||
mod.c | ||
protocol.c | ||
protocol.h | ||
trans_common.c | ||
trans_common.h | ||
trans_fd.c | ||
trans_rdma.c | ||
trans_virtio.c | ||
util.c |