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authorMartin Wilck <mwilck@suse.com>2017-11-28 01:47:34 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2017-12-05 05:54:28 +0300
commitba69ead9e9e9bb3cec5faf03526c36764ac8942a (patch)
tree4553dcde881ffec4df460f6a56c7cefb1b83a5ee /drivers/scsi
parent45349821ab3a8d378b8f37e52c6fe1aa1b870c47 (diff)
downloadlinux-ba69ead9e9e9bb3cec5faf03526c36764ac8942a.tar.xz
scsi: scsi_devinfo: handle non-terminated strings
devinfo->vendor and devinfo->model aren't necessarily zero-terminated. Fixes: b8018b973c7c "scsi_devinfo: fixup string compare" Signed-off-by: Martin Wilck <mwilck@suse.com> Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/scsi_devinfo.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index 78d4aa8df675..b256d4cbd3ad 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -458,7 +458,8 @@ static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
/*
* vendor strings must be an exact match
*/
- if (vmax != strlen(devinfo->vendor) ||
+ if (vmax != strnlen(devinfo->vendor,
+ sizeof(devinfo->vendor)) ||
memcmp(devinfo->vendor, vskip, vmax))
continue;
@@ -466,7 +467,7 @@ static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
* @model specifies the full string, and
* must be larger or equal to devinfo->model
*/
- mlen = strlen(devinfo->model);
+ mlen = strnlen(devinfo->model, sizeof(devinfo->model));
if (mmax < mlen || memcmp(devinfo->model, mskip, mlen))
continue;
return devinfo;