tree ad58a8aaed81c73c0824031f71077ff2ad48928c
parent 38e08aab37b2aab86aa372f1e3440d593c74e0fa
author cdumez@apple.com <cdumez@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1566662572 +0000
committer cdumez@apple.com <cdumez@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1566662572 +0000

Make CacheStorageEngineCaches's decodeCachesNames() more robust against bad input data
https://bugs.webkit.org/show_bug.cgi?id=201102

Reviewed by Antti Koivisto.

Use Vector::tryReserveCapacity() instead of Vector::reserveInitialCapacity() in CacheStorage::decodeCachesNames()
since the size is read from disk and thus cannot be trusted. If the size is too large, reserveInitialCapacity()
would end up crashing the network process. Now, we merely discard the data if tryReserveCapacity() fails because
the size is too large.

* NetworkProcess/cache/CacheStorageEngineCaches.cpp:
(WebKit::CacheStorage::decodeCachesNames):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@249087 268f45cc-cd09-0410-ab3c-d52691b4dbfc