[PATCH 5/5] Drivers: hv: kvp: Use MAX_ADAPTER_ID_SIZE for translating adapter id

[kys]

From: Alex Ng 

There's a bug which passes the output buffer size as MAX_IP_ADDR_SIZE,
when converting the adapter_id field to UTF16. This is much larger than
the actual size (MAX_ADAPTER_ID_SIZE). Fix this by passing the proper
size.

Fortunately, the translation is limited by the length of the input. This
explains why we haven't seen output buffer overflow conditions.

Signed-off-by: Alex Ng 
Signed-off-by: K. Y. Srinivasan 
---
 drivers/hv/hv_kvp.c |2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 9a90b91..5eed1e7 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -304,7 +304,7 @@ static int process_ob_ipinfo(void *in_msg, void *out_msg, 
int op)
strlen((char *)in->body.kvp_ip_val.adapter_id),
UTF16_HOST_ENDIAN,
(wchar_t *)out->kvp_ip_val.adapter_id,
-   MAX_IP_ADDR_SIZE);
+   MAX_ADAPTER_ID_SIZE);
if (len < 0)
return len;
 
-- 
1.7.1

[PATCH 5/5] Drivers: hv: kvp: Use MAX_ADAPTER_ID_SIZE for translating adapter id

[kys]

From: Alex Ng 

There's a bug which passes the output buffer size as MAX_IP_ADDR_SIZE,
when converting the adapter_id field to UTF16. This is much larger than
the actual size (MAX_ADAPTER_ID_SIZE). Fix this by passing the proper
size.

Fortunately, the translation is limited by the length of the input. This
explains why we haven't seen output buffer overflow conditions.

Signed-off-by: Alex Ng 
Signed-off-by: K. Y. Srinivasan 
---
 drivers/hv/hv_kvp.c |2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 9a90b91..5eed1e7 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -304,7 +304,7 @@ static int process_ob_ipinfo(void *in_msg, void *out_msg, 
int op)
strlen((char *)in->body.kvp_ip_val.adapter_id),
UTF16_HOST_ENDIAN,
(wchar_t *)out->kvp_ip_val.adapter_id,
-   MAX_IP_ADDR_SIZE);
+   MAX_ADAPTER_ID_SIZE);
if (len < 0)
return len;
 
-- 
1.7.1