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| author | Hyunwoo Kim <v4bel@theori.io> | 2024-10-22 09:32:56 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-11-06 09:30:20 +0100 |
| commit | 6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f (patch) | |
| tree | e7d9904448ad0b990b8cc137ea746ab88eb3b89b /net/vmw_vsock | |
| parent | Linux 6.12-rc6 (diff) | |
| download | linux-6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f.tar.xz linux-6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f.zip | |
vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans
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>
Diffstat (limited to 'net/vmw_vsock')
| -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 ccbd2bc0d210..fc5666c8298f 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -1109,6 +1109,7 @@ 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); |