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authorHyunwoo Kim <v4bel@theori.io>2024-11-06 04:36:04 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-11-22 15:30:25 +0100
commit8621725afb38e111969c64280b71480afde2aace (patch)
tree715b1d76533dad4262feb4294acaf0b12d86c25e /net/vmw_vsock
parentadc218676eef25575469234709c2d87185ca223a (diff)
hv_sock: Initializing vsk->trans to NULL to prevent a dangling pointer
commit e629295bd60abf4da1db85b82819ca6a4f6c1e79 upstream. When hvs is released, there is a possibility that vsk->trans may not be initialized to NULL, which could lead to a dangling pointer. This issue is resolved by initializing vsk->trans to NULL. Signed-off-by: Hyunwoo Kim <v4bel@theori.io> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Link: https://patch.msgid.link/Zys4hCj61V+mQfX2@v4bel-B760M-AORUS-ELITE-AX Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/vmw_vsock')
-rw-r--r--net/vmw_vsock/hyperv_transport.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c
index e2157e387217..56c232cf5b0f 100644
--- a/net/vmw_vsock/hyperv_transport.c
+++ b/net/vmw_vsock/hyperv_transport.c
@@ -549,6 +549,7 @@ static void hvs_destruct(struct vsock_sock *vsk)
vmbus_hvsock_device_unregister(chan);
kfree(hvs);
+ vsk->trans = NULL;
}
static int hvs_dgram_bind(struct vsock_sock *vsk, struct sockaddr_vm *addr)