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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2017-03-07 09:16:27 -0600
committerPaolo Bonzini <pbonzini@redhat.com>2017-03-14 14:41:19 +0100
commit2563c9c6b8670400c48e562034b321a7cf3d9a85 (patch)
tree4c24cc4bb13b7f4748f1f659fd88c7c2ba13d9fa /nbd
parentb31f84126215e3fd4b8acbc3083ae30d407329e8 (diff)
nbd/client: fix drop_sync [CVE-2017-2630]
Comparison symbol is misused. It may lead to memory corruption. Introduced in commit 7d3123e. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20170203154757.36140-6-vsementsov@virtuozzo.com> [eblake: add CVE details, update conditional] Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170307151627.27212-1-eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'nbd')
-rw-r--r--nbd/client.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/nbd/client.c b/nbd/client.c
index 5c9dee37fa..3dc2564cd0 100644
--- a/nbd/client.c
+++ b/nbd/client.c
@@ -94,7 +94,7 @@ static ssize_t drop_sync(QIOChannel *ioc, size_t size)
char small[1024];
char *buffer;
- buffer = sizeof(small) < size ? small : g_malloc(MIN(65536, size));
+ buffer = sizeof(small) >= size ? small : g_malloc(MIN(65536, size));
while (size > 0) {
ssize_t count = read_sync(ioc, buffer, MIN(65536, size));