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| author | José Expósito <jose.exposito89@gmail.com> | 2021-12-13 08:01:49 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-29 14:17:35 +0300 |
| commit | b75d500fd52481ddfa00d2fc8f9b8318e750c48a (patch) | |
| tree | dbb0e431972658554f80f6ccd272c5b1c2565d76 | |
| parent | 6e1c179cf8708dd6c53e0b6cb63ca21484d95b0b (diff) | |
| download | linux-b75d500fd52481ddfa00d2fc8f9b8318e750c48a.tar.xz | |
Input: atmel_mxt_ts - fix double free in mxt_read_info_block
commit 12f247ab590a08856441efdbd351cf2cc8f60a2d upstream.
The "id_buf" buffer is stored in "data->raw_info_block" and freed by
"mxt_free_object_table" in case of error.
Return instead of jumping to avoid a double free.
Addresses-Coverity-ID: 1474582 ("Double free")
Fixes: 068bdb67ef74 ("Input: atmel_mxt_ts - fix the firmware update")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Link: https://lore.kernel.org/r/20211212194257.68879-1-jose.exposito89@gmail.com
Cc: stable@vger.kernel.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/atmel_mxt_ts.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 138d1f3b12b2..366990fa01b9 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -1768,7 +1768,7 @@ static int mxt_read_info_block(struct mxt_data *data) if (error) { dev_err(&client->dev, "Error %d parsing object table\n", error); mxt_free_object_table(data); - goto err_free_mem; + return error; } data->object_table = (struct mxt_object *)(id_buf + MXT_OBJECT_START); |