Messages in this thread | | | From | David Howells <> | Subject | Re: kernel BUG at net/rxrpc/local_object.c:LINE! | Date | Mon, 19 Aug 2019 09:23:00 +0100 |
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Hi Hillf,
There are some commits in net/master that ought to fix this and conflict with your longer patch:
730c5fd42c1e3652a065448fd235cb9fafb2bd10 rxrpc: Fix local endpoint refcounting
68553f1a6f746bf860bce3eb42d78c26a717d9c0 rxrpc: Fix local refcounting
b00df840fb4004b7087940ac5f68801562d0d2de rxrpc: Fix local endpoint replacement
06d9532fa6b34f12a6d75711162d47c17c1add72 rxrpc: Fix read-after-free in rxrpc_queue_local()
After the first one, you should never see local->usage == 0 in rxrpc_input_packet() as the UDP socket gets closed before the refcount is reduced to 0 (there's now a second "usage" count that counts how many times the local endpoint is in use and local->usage is the refcount for the struct itself).
Thanks, David
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