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Commit afec35e3 authored by Andrea Bittau's avatar Andrea Bittau Committed by David S. Miller
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[DCCP] Ackvec: fix soft lockup in ackvec handling code 



A soft lockup existed in the handling of ack vector records.
Specifically, when a tail of the list of ack vector records was
removed, it was possible to end up iterating infinitely on an element
of the tail.

Signed-off-by: default avatarAndrea Bittau <a.bittau@cs.ucl.ac.uk>
Signed-off-by: default avatarIan McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 289a1e99

net/dccp/ackvec.c

+1 −0
Original line number Diff line number Diff line
@@ -452,6 +452,7 @@ found: 
					      (unsigned long long)

					      avr->dccpavr_ack_ackno);

				dccp_ackvec_throw_record(av, avr);

				break;

			}

			/*

			 * If it wasn't received, continue scanning... we might