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target: Fix missing length check in spc_emulate_evpd_83()

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Commit fbfe858fea ("target_core_spc: Include target device
descriptor in VPD page 83") added a new length variable, but (due to a
cut and paste mistake?) just checks scsi_name_len against 256 twice.
Fix this to check scsi_target_len for overflow too.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Roland Dreier 2014-02-03 00:35:03 -08:00 committed by Nicholas Bellinger
parent 2d15025a56
commit 6a16d7be93
1 changed files with 2 additions and 2 deletions
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drivers/target/target_core_spc.c
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@ -440,8 +440,8 @@ spc_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf)
padding = ((-scsi_target_len) & 3);
if (padding)
scsi_target_len += padding;
if (scsi_name_len > 256)
scsi_name_len = 256;
if (scsi_target_len > 256)
scsi_target_len = 256;
buf[off-1] = scsi_target_len;
off += scsi_target_len;