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authorMarc-André Lureau <marcandre.lureau@redhat.com>2016-02-23 19:10:51 +0100
committerMichael S. Tsirkin <mst@redhat.com>2016-03-11 16:59:12 +0200
commit869a58af86d5bb2533908dc53cc28de6e85edf38 (patch)
tree29e0da4c2aaca91d9ca81e902e68e5d46313719e
parentb7fcb3603cd9e44d643636ad797e66f2ea9096da (diff)
downloadqemu-869a58af86d5bb2533908dc53cc28de6e85edf38.zip
qemu-char: avoid potential double-free
If tcp_set_msgfds() is called several time with NULL fds, this could lead to double-free. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
-rw-r--r--qemu-char.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/qemu-char.c b/qemu-char.c
index e0147f3e8b..fc4611d3b8 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2697,6 +2697,7 @@ static int tcp_set_msgfds(CharDriverState *chr, int *fds, int num)
}
/* clear old pending fd array */
g_free(s->write_msgfds);
+ s->write_msgfds = NULL;
if (num) {
s->write_msgfds = g_new(int, num);