From: Anastasia Belova <nabelov...@gmail.com>
s->pool has n_descs elements so maximum i should be
n_descs - 1. Fix the upper bound.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: cb039ef3d9 ("net: add initial support for AF_XDP network backend")
Cc: qemu-sta...@nongnu.org
Reviewed-by: Ilya Maximets <i.maxim...@ovn.org>
Signed-off-by: Anastasia Belova <nabelov...@gmail.com>
Signed-off-by: Jason Wang <jasow...@redhat.com>
(cherry picked from commit 110d0fa2d4d1f754242f6775baec43776a9adb35)
Signed-off-by: Michael Tokarev <m...@tls.msk.ru>
diff --git a/net/af-xdp.c b/net/af-xdp.c
index 01c5fb914e..d022534d76 100644
--- a/net/af-xdp.c
+++ b/net/af-xdp.c
@@ -323,7 +323,7 @@ static int af_xdp_umem_create(AFXDPState *s, int sock_fd,
Error **errp)
s->pool = g_new(uint64_t, n_descs);
/* Fill the pool in the opposite order, because it's a LIFO queue. */
- for (i = n_descs; i >= 0; i--) {
+ for (i = n_descs - 1; i >= 0; i--) {
s->pool[i] = i * XSK_UMEM__DEFAULT_FRAME_SIZE;
}
s->n_pool = n_descs;
--
2.47.2
