| commit | 294c149a209c6196c2de85f512b52ef50f519949 | [log] [tgz] |
|---|---|---|
| author | Dan Carpenter <dan.carpenter@oracle.com> | Fri Feb 01 11:28:16 2019 +0300 |
| committer | David S. Miller <davem@davemloft.net> | Fri Feb 01 10:00:22 2019 -0800 |
| tree | bac41b5c5e67a0fd4cdde48757d9a71d3259f643 | |
| parent | 5e66e35aab335b83d9ffb220d8a3a13986a7a60e [diff] |
skge: potential memory corruption in skge_get_regs()
The "p" buffer is 0x4000 bytes long. B3_RI_WTO_R1 is 0x190. The value
of "regs->len" is in the 1-0x4000 range. The bug here is that
"regs->len - B3_RI_WTO_R1" can be a negative value which would lead to
memory corruption and an abrupt crash.
Fixes: c3f8be961808 ("[PATCH] skge: expand ethtool debug register dump")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>