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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-24 00:01:43 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-24 00:01:43 -0300
commit037d32aa8f748e39844d2a5b607fb063b4583843 (patch)
treeb5fe973d42017b5d8888103b05be7a503fe95f0f /drivers/scsi/arcmsr
parent670027c507e99521d416994a18a498def9ef2ea3 (diff)
Linux-libre 4.8.4-gnupck-4.8.4-gnu
Diffstat (limited to 'drivers/scsi/arcmsr')
-rw-r--r--drivers/scsi/arcmsr/arcmsr_hba.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 764049896..3d53d636b 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -2388,15 +2388,23 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
}
case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
unsigned char *ver_addr;
- int32_t user_len, cnt2end;
+ uint32_t user_len;
+ int32_t cnt2end;
uint8_t *pQbuffer, *ptmpuserbuffer;
+
+ user_len = pcmdmessagefld->cmdmessage.Length;
+ if (user_len > ARCMSR_API_DATA_BUFLEN) {
+ retvalue = ARCMSR_MESSAGE_FAIL;
+ goto message_out;
+ }
+
ver_addr = kmalloc(ARCMSR_API_DATA_BUFLEN, GFP_ATOMIC);
if (!ver_addr) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
ptmpuserbuffer = ver_addr;
- user_len = pcmdmessagefld->cmdmessage.Length;
+
memcpy(ptmpuserbuffer,
pcmdmessagefld->messagedatabuffer, user_len);
spin_lock_irqsave(&acb->wqbuffer_lock, flags);