diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2021-02-19 12:56:32 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-04 12:15:11 +0100 |
| commit | c9a2ed3fdd037314a71e6a6ba5d99a3605f6f9c7 (patch) | |
| tree | f064004452663e61facd60362ce6e0ba9e870c16 | |
| parent | 1e2c94d0e5c689d037fb5a6856e3e99d0a7a52c6 (diff) | |
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@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index d27543c1a166..bb3fdaf33751 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -385,7 +385,7 @@ 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; |