5.4-stable review patch. If anyone has any objections, please let me know.
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From: HarshaVardhana S A harshavardhana.sa@broadcom.com
commit 223e2288f4b8c262a864e2c03964ffac91744cd5 upstream.
In vmci_transport_packet_init memset the vmci_transport_packet before populating the fields to avoid any uninitialised data being left in the structure.
Cc: Bryan Tan bryan-bt.tan@broadcom.com Cc: Vishnu Dasa vishnu.dasa@broadcom.com Cc: Broadcom internal kernel review list Cc: Stefano Garzarella sgarzare@redhat.com Cc: "David S. Miller" davem@davemloft.net Cc: Eric Dumazet edumazet@google.com Cc: Jakub Kicinski kuba@kernel.org Cc: Paolo Abeni pabeni@redhat.com Cc: Simon Horman horms@kernel.org Cc: virtualization@lists.linux.dev Cc: netdev@vger.kernel.org Cc: stable stable@kernel.org Signed-off-by: HarshaVardhana S A harshavardhana.sa@broadcom.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Fixes: d021c344051a ("VSOCK: Introduce VM Sockets") Acked-by: Stefano Garzarella sgarzare@redhat.com Link: https://patch.msgid.link/20250701122254.2397440-1-gregkh@linuxfoundation.org Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/vmw_vsock/vmci_transport.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/vmw_vsock/vmci_transport.c +++ b/net/vmw_vsock/vmci_transport.c @@ -125,6 +125,8 @@ vmci_transport_packet_init(struct vmci_t u16 proto, struct vmci_handle handle) { + memset(pkt, 0, sizeof(*pkt)); + /* We register the stream control handler as an any cid handle so we * must always send from a source address of VMADDR_CID_ANY */ @@ -137,8 +139,6 @@ vmci_transport_packet_init(struct vmci_t pkt->type = type; pkt->src_port = src->svm_port; pkt->dst_port = dst->svm_port; - memset(&pkt->proto, 0, sizeof(pkt->proto)); - memset(&pkt->_reserved2, 0, sizeof(pkt->_reserved2));
switch (pkt->type) { case VMCI_TRANSPORT_PACKET_TYPE_INVALID: