Stefano Garzarella 91751e2482 vsock: prevent null-ptr-deref in vsock_*[has_data|has_space] ... Recent reports have shown how we sometimes call vsock_*_has_data() when a vsock socket has been de-assigned from a transport (see attached links), but we shouldn't. Previous commits should have solved the real problems, but we may have more in the future, so to avoid null-ptr-deref, we can return 0 (no space, no data available) but with a warning. This way the code should continue to run in a nearly consistent state and have a warning that allows us to debug future problems. Fixes: c0cfa2d8a7 ("vsock: add multi-transports support") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/netdev/Z2K%2FI4nlHdfMRTZC@v4bel-B760M-AORUS-ELITE-AX/ Link: https://lore.kernel.org/netdev/5ca20d4c-1017-49c2-9516-f6f75fd331e9@rbox.co/ Link: https://lore.kernel.org/netdev/677f84a8.050a0220.25a300.01b3.GAE@google.com/ Co-developed-by: Hyunwoo Kim <v4bel@theori.io> Signed-off-by: Hyunwoo Kim <v4bel@theori.io> Co-developed-by: Wongi Lee <qwerty@theori.io> Signed-off-by: Wongi Lee <qwerty@theori.io> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Luigi Leonardi <leonardi@redhat.com> Reviewed-by: Hyunwoo Kim <v4bel@theori.io> Signed-off-by: Paolo Abeni <pabeni@redhat.com>		2025-01-14 12:29:37 +01:00
..
af_vsock.c	vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]	2025-01-14 12:29:37 +01:00
af_vsock_tap.c
diag.c
hyperv_transport.c	hv_sock: Initializing vsk->trans to NULL to prevent a dangling pointer	2024-11-09 09:13:37 -08:00
Kconfig
Makefile
virtio_transport.c	virtio: bugfixes	2024-10-07 11:33:26 -07:00
virtio_transport_common.c	vsock/virtio: cancel close work in the destructor	2025-01-14 12:29:37 +01:00
vmci_transport.c
vmci_transport.h
vmci_transport_notify.c
vmci_transport_notify.h
vmci_transport_notify_qstate.c
vsock_addr.c
vsock_bpf.c	vsock/bpf: return early if transport is not assigned	2025-01-14 12:29:37 +01:00
vsock_loopback.c	vsock/virtio: add SIOCOUTQ support for all virtio based transports	2024-08-02 09:20:28 +01:00