This data comes from the device, so probably it's fairly trustworthy but
it makes the static checkers happy if we check it.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index d22cd16..755812a 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -529,6 +529,8 @@ static int exofs_devs_2_odi(struct exofs_dt_device_info *dt_dev,
struct osd_dev_info *odi)
{
odi->systemid_len = le32_to_cpu(dt_dev->systemid_len);
+ if (odi->systemid_len > OSD_SYSTEMID_LEN)
+ return -EINVAL;
memcpy(odi->systemid, dt_dev->systemid, odi->systemid_len);
odi->osdname_len = le32_to_cpu(dt_dev->osdname_len);
--
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