This is a note to let you know that I've just added the patch titled
octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()
to the 5.10-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:
octeontx2-af-fix-an-off-by-one-in-rvu_dbg_qsize_writ.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 19679e72739daaeb38d161be9692a305def092c7
Author: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Fri Feb 19 12:56:32 2021 +0300
octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()
[ Upstream commit 3a2eb515d1367c0f667b76089a6e727279c688b8 ]
This code does not allocate enough memory for the NUL terminator so it
ends up putting it one character beyond the end of the buffer.
Fixes: 8756828a8148 ("octeontx2-af: Add NPA aura and pool contexts to debugfs")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index 77adad4adb1bc..809f50ab0432e 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -332,7 +332,7 @@ static ssize_t rvu_dbg_qsize_write(struct file *filp,
u16 pcifunc;
int ret, lf;
- cmd_buf = memdup_user(buffer, count);
+ cmd_buf = memdup_user(buffer, count + 1);
if (IS_ERR(cmd_buf))
return -ENOMEM;
