| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.17 47/70] libata: zpodd: small read overflow in eject_tray() | Date | Sun, 24 Jun 2018 23:22:39 +0800 |
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4.17-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter <dan.carpenter@oracle.com>
commit 18c9a99bce2a57dfd7e881658703b5d7469cc7b9 upstream.
We read from the cdb[] buffer in ata_exec_internal_sg(). It has to be ATAPI_CDB_LEN (16) bytes long, but this buffer is only 12 bytes.
Fixes: 213342053db5 ("libata: handle power transition of ODD") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/ata/libata-zpodd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/ata/libata-zpodd.c +++ b/drivers/ata/libata-zpodd.c @@ -35,7 +35,7 @@ struct zpodd { static int eject_tray(struct ata_device *dev) { struct ata_taskfile tf; - static const char cdb[] = { GPCMD_START_STOP_UNIT, + static const char cdb[ATAPI_CDB_LEN] = { GPCMD_START_STOP_UNIT, 0, 0, 0, 0x02, /* LoEj */ 0, 0, 0, 0, 0, 0, 0,
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