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authorDan Carpenter <dan.carpenter@oracle.com>2018-02-14 15:02:31 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2018-03-02 05:10:36 +0300
commit29e79e0fa9b86535c2f1442d080c8cb5dec8606b (patch)
tree4e9850bea6ffa70fce84cd2c21e178515c6336c0 /drivers/scsi/atp870u.c
parente75fba9c0668b3767f608ea07485f48d33c270cf (diff)
downloadlinux-29e79e0fa9b86535c2f1442d080c8cb5dec8606b.tar.xz
scsi: atp870u: 64 bit bug in atp885_init()
On 64 bit CPUs there is a memory corruption bug on probe(). It should be a u32 pointer instead of an unsigned long pointer or we write past the end of the setupdata[] array. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/atp870u.c')
-rw-r--r--drivers/scsi/atp870u.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 8b52a9dbb9cf..b46997cf77e2 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -1413,11 +1413,11 @@ static void atp885_init(struct Scsi_Host *shpnt)
atpdev->global_map[m] = 0;
for (k = 0; k < 4; k++) {
atp_writew_base(atpdev, 0x3c, n++);
- ((unsigned long *)&setupdata[m][0])[k] = atp_readl_base(atpdev, 0x38);
+ ((u32 *)&setupdata[m][0])[k] = atp_readl_base(atpdev, 0x38);
}
for (k = 0; k < 4; k++) {
atp_writew_base(atpdev, 0x3c, n++);
- ((unsigned long *)&atpdev->sp[m][0])[k] = atp_readl_base(atpdev, 0x38);
+ ((u32 *)&atpdev->sp[m][0])[k] = atp_readl_base(atpdev, 0x38);
}
n += 8;
}