Budimir Markovic cf86704798 vsock: Do not allow binding to VMADDR_PORT_ANY ... commit aba0c94f61 upstream. It is possible for a vsock to autobind to VMADDR_PORT_ANY. This can cause a use-after-free when a connection is made to the bound socket. The socket returned by accept() also has port VMADDR_PORT_ANY but is not on the list of unbound sockets. Binding it will result in an extra refcount decrement similar to the one fixed in fcdd2242c0 (vsock: Keep the binding until socket destruction). Modify the check in __vsock_bind_connectible() to also prevent binding to VMADDR_PORT_ANY. Fixes: d021c34405 ("VSOCK: Introduce VM Sockets") Reported-by: Budimir Markovic <markovicbudimir@gmail.com> Signed-off-by: Budimir Markovic <markovicbudimir@gmail.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://patch.msgid.link/20250807041811.678-1-markovicbudimir@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-08-28 16:24:14 +02:00
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af_vsock_tap.c
af_vsock.c	vsock: Do not allow binding to VMADDR_PORT_ANY	2025-08-28 16:24:14 +02:00
diag.c
hyperv_transport.c
Kconfig
Makefile
virtio_transport_common.c
virtio_transport.c
vmci_transport_notify_qstate.c
vmci_transport_notify.c
vmci_transport_notify.h
vmci_transport.c
vmci_transport.h
vsock_addr.c
vsock_loopback.c