Hello.
On 8/24/2015 1:07 PM, Xin Long wrote:
in sctp_process_asconf(), we get address parameter from the beginning of the
addip params. but we never check if it's really there. if the addr param is not
there, it still can pass sctp_verify_asconf(), then to be handled by
sctp_process_asconf(), it will not be safe.
so add a code in sctp_verify_asconf() to check the address parameter is in the
beginning, or return false to send abort.
Signed-off-by: Xin Long <lucien....@gmail.com>
---
net/sctp/sm_make_chunk.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 0ee5ca7..a2a72d5 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3122,6 +3122,14 @@ bool sctp_verify_asconf(const struct sctp_association
*asoc,
union sctp_params param;
bool addr_param_seen = false;
+ if(addr_param_needed){
Space needed after *if*. Please run your patches thru
scripts/checkpatch.pl before posting.
[...]
MBR, Sergei
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