Blame SOURCES/0010-quic-Check-we-have-some-data-to-start-decoding-quic-.patch
|
 |
84be6c |
From d9cc2d4659950df230dfe30e5445b91d4c15604e Mon Sep 17 00:00:00 2001
|
|
|
84be6c |
From: Frediano Ziglio <freddy77@gmail.com>
|
|
|
84be6c |
Date: Wed, 29 Apr 2020 15:09:13 +0100
|
|
|
84be6c |
Subject: [PATCH spice-common 1/4] quic: Check we have some data to start
|
|
|
84be6c |
decoding quic image
|
|
|
84be6c |
|
|
|
84be6c |
All paths already pass some data to quic_decode_begin but for the
|
|
|
84be6c |
test check it, it's not that expensive test.
|
|
|
84be6c |
Checking for not 0 is enough, all other words will potentially be
|
|
|
84be6c |
read calling more_io_words but we need one to avoid a potential
|
|
|
84be6c |
initial buffer overflow or deferencing an invalid pointer.
|
|
|
84be6c |
|
|
|
84be6c |
Signed-off-by: Frediano Ziglio <freddy77@gmail.com>
|
|
|
84be6c |
Acked-by: Uri Lublin <uril@redhat.com>
|
|
|
84be6c |
---
|
|
|
84be6c |
common/quic.c | 2 +-
|
|
|
84be6c |
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
84be6c |
|
|
|
84be6c |
diff --git a/subprojects/spice-common/common/quic.c b/subprojects/spice-common/common/quic.c
|
|
|
84be6c |
index 55a5d6c..e03f3af 100644
|
|
|
84be6c |
--- a/subprojects/spice-common/common/quic.c
|
|
|
84be6c |
+++ b/subprojects/spice-common/common/quic.c
|
|
|
84be6c |
@@ -1136,7 +1136,7 @@ int quic_decode_begin(QuicContext *quic, uint32_t *io_ptr, unsigned int num_io_w
|
|
|
84be6c |
int channels;
|
|
|
84be6c |
int bpc;
|
|
|
84be6c |
|
|
|
84be6c |
- if (!encoder_reset(encoder, io_ptr, io_ptr_end)) {
|
|
|
84be6c |
+ if (!num_io_words || !encoder_reset(encoder, io_ptr, io_ptr_end)) {
|
|
|
84be6c |
return QUIC_ERROR;
|
|
|
84be6c |
}
|
|
|
84be6c |
|
|
|
84be6c |
--
|
|
|
84be6c |
2.25.4
|
|
|
84be6c |
|