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authorBenoît Ganne <bganne@cisco.com>2021-06-09 17:20:16 +0200
committerFlorin Coras <florin.coras@gmail.com>2021-06-21 17:13:05 +0000
commitd4721b2152b245558f5753a60d909b5b233af493 (patch)
tree231d65b1d95b5975bdd1723d6150079e41e77cff /build
parent3006289a07429730ff69c2585eed6d6075be3565 (diff)
vppinfra: asan: fix overflow support
In some part of VPP we are accessing memory past what was allocated for efficiency when we know it is safe to do so. We need to tell ASan about it so it does not complain. The initial attempt was too simple and could not manage cases where the poisoned memory was scattered. This new attempt is more robust as we save and restore the full shadow state. Note it will still not work properly if we poison/unpoison memory while in an overflow context, but this should not be a big issue as overflow should only be temporary. Type: fix Change-Id: I636f44eb59aa8455a4d13929a3791b56619af7b4 Signed-off-by: Benoît Ganne <bganne@cisco.com>
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