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octeontx2-af: Fix an off by one in rvu_dbg_qsize_write()

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[ 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@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2021-02-19 12:56:32 +03:00 committed by Greg Kroah-Hartman
parent a8afe8bce4
commit dae49384d0
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
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@ -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;