This is a note to let you know that I've just added the patch titled
s390/iucv: fix receive buffer virtual vs physical address confusion
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
s390-iucv-fix-receive-buffer-virtual-vs-physical-add.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7a6f2cb5f26fd4c2c31c590d3b0148b7e92d36d1
Author: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Date: Fri Feb 16 13:13:26 2024 +0100
s390/iucv: fix receive buffer virtual vs physical address confusion
[ Upstream commit 4e8477aeb46dfe74e829c06ea588dd00ba20c8cc ]
Fix IUCV_IPBUFLST-type buffers virtual vs physical address confusion.
This does not fix a bug since virtual and physical address spaces are
currently the same.
Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Reviewed-by: Alexandra Winter <wintera@xxxxxxxxxxxxx>
Signed-off-by: Heiko Carstens <hca@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index f0364649186b9..dc85973479284 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -1136,8 +1136,7 @@ static int iucv_message_receive_iprmdata(struct iucv_path *path,
size = (size < 8) ? size : 8;
for (array = buffer; size > 0; array++) {
copy = min_t(size_t, size, array->length);
- memcpy((u8 *)(addr_t) array->address,
- rmmsg, copy);
+ memcpy(phys_to_virt(array->address), rmmsg, copy);
rmmsg += copy;
size -= copy;
}
