diff options
| author | Hyunwoo Kim <v4bel@theori.io> | 2024-10-22 09:32:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-14 13:19:41 +0100 |
| commit | b110196fec44fe966952004bd426967c2a8fd358 (patch) | |
| tree | d6ff5c9539440e78914954129e086c78cc0aecdd | |
| parent | 4bdc5a62c6e50600d8a1c3e18fd6dce0c27c9497 (diff) | |
vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans
commit 6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f upstream.
During loopback communication, a dangling pointer can be created in
vsk->trans, potentially leading to a Use-After-Free condition. This
issue is resolved by initializing vsk->trans to NULL.
Cc: stable <stable@kernel.org>
Fixes: 06a8fc78367d ("VSOCK: Introduce virtio_vsock_common.ko")
Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Signed-off-by: Wongi Lee <qwerty@theori.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Message-Id: <2024102245-strive-crib-c8d3@gregkh>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/vmw_vsock/virtio_transport_common.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 78b5f4f8808b..2a44505f4a22 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -923,6 +923,7 @@ void virtio_transport_destruct(struct vsock_sock *vsk) struct virtio_vsock_sock *vvs = vsk->trans; kfree(vvs); + vsk->trans = NULL; } EXPORT_SYMBOL_GPL(virtio_transport_destruct); |