Messages in this thread Patch in this message | | | From | Artem Chernyshev <> | Subject | [PATCH] net: vmw_vsock: vmci: Check memcpy_from_msg() | Date | Sat, 3 Dec 2022 01:58:18 +0300 |
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We returns from vmci_transport_dgram_enqueue() with error if memcpy goes wrong
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 0f7db23a07af ("vmci_transport: switch ->enqeue_dgram, ->enqueue_stream and ->dequeue_stream to msghdr") Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru> --- net/vmw_vsock/vmci_transport.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c index 842c94286d31..7994090e0314 100644 --- a/net/vmw_vsock/vmci_transport.c +++ b/net/vmw_vsock/vmci_transport.c @@ -1711,7 +1711,8 @@ static int vmci_transport_dgram_enqueue( if (!dg) return -ENOMEM; - memcpy_from_msg(VMCI_DG_PAYLOAD(dg), msg, len); + if (memcpy_from_msg(VMCI_DG_PAYLOAD(dg), msg, len)) + return -EFAULT; dg->dst = vmci_make_handle(remote_addr->svm_cid, remote_addr->svm_port); -- 2.30.3
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