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| author | Ferruh Yigit <fery@cypress.com> | 2013-05-23 09:56:55 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-27 11:27:33 -0700 |
| commit | 8c428c194065e000d4138123f147bc74f7532bbc (patch) | |
| tree | 28cc19f2beaa37f23092216ef53d4bb424e91e97 | |
| parent | 322130dea90940d65b811bd67790aecf86e6340f (diff) | |
| download | linux-3.10-8c428c194065e000d4138123f147bc74f7532bbc.tar.gz linux-3.10-8c428c194065e000d4138123f147bc74f7532bbc.tar.bz2 linux-3.10-8c428c194065e000d4138123f147bc74f7532bbc.zip | |
Input: cyttsp - fix memcpy size param
commit d2983cdb480157f637df07723f28aaa657b1080d upstream.
memcpy param is wrong because of offset in bl_cmd, this may corrupt the
stack which may cause a crash.
Tested-by: Ferruh Yigit <fery@cypress.com> on TMA300-DVK
Signed-off-by: Ferruh Yigit <fery@cypress.com>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/input/touchscreen/cyttsp_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c index f030d9ec795..3f505d5e848 100644 --- a/drivers/input/touchscreen/cyttsp_core.c +++ b/drivers/input/touchscreen/cyttsp_core.c @@ -133,7 +133,7 @@ static int cyttsp_exit_bl_mode(struct cyttsp *ts) memcpy(bl_cmd, bl_command, sizeof(bl_command)); if (ts->pdata->bl_keys) memcpy(&bl_cmd[sizeof(bl_command) - CY_NUM_BL_KEYS], - ts->pdata->bl_keys, sizeof(bl_command)); + ts->pdata->bl_keys, CY_NUM_BL_KEYS); error = ttsp_write_block_data(ts, CY_REG_BASE, sizeof(bl_cmd), bl_cmd); |