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authorAndrew Yourtchenko <ayourtch@gmail.com>2018-10-04 15:11:01 +0200
committerDave Barach <openvpp@barachs.net>2018-10-04 17:53:44 +0000
commit6f40a8a4c5792c5c5e5c77366e98b1f10370d685 (patch)
tree8c7382d588c9b8a801537b132bcbe9832d50fcef /src/vnet
parenta44d6b133bfb7ee0fb11d6ae8d9f0f00e57f242c (diff)
acl-plugin: tuplemerge: avoid batch-resize of the applied entries vector - VPP-1352
If the number of rules within a given partition exceeds the limit, the split_partition() might get called, in which we calculate the relaxed mask, create a new partition with that mask and attempt to reallocate some entries from the overcrowded partition. The non-TM code was pre-expanding the vector with rules by the number of rules in the new ACL being applied - which caused the split_partition() to iterate over the rules filled with zeroes. Most of the time it is benign, but if a newly created relaxed partition is such that these entries can be "relocated", then the code attempts to do so, which does not end well. Change-Id: I2dbf3ccd29ff97277b21cdb11c4424ff0915c3b7 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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