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Bug 1707642 - Increase message size limit in fuzzing builds. r=nika, a=RyanVM

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If the limit is small, then the fuzzers hit crashes in various places when
passing in large data structures to DOM APIs, so increase the limit.

Differential Revision: https://phabricator.services.mozilla.com/D130890
This commit is contained in:
Andrew McCreight 2021-11-11 18:00:02 +00:00
parent 9a4a2ff86b
commit 6842fb4693
1 changed files with 11 additions and 4 deletions
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15
ipc/chromium/src/chrome/common/ipc_channel.h
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@ -67,11 +67,18 @@ class Channel {
enum Mode { MODE_SERVER, MODE_CLIENT };
enum {
// The maximum message size in bytes. Attempting to receive a
// message of this size or bigger results in a channel error.
kMaximumMessageSize = 256 * 1024 * 1024,
// Ammount of data to read at once from the pipe.
// The maximum message size in bytes. Attempting to receive a
// message of this size or bigger results in a channel error.
// This is larger in fuzzing builds to allow the fuzzing of passing
// large data structures into DOM methods without crashing.
#ifndef FUZZING
kMaximumMessageSize = 256 * 1024 * 1024,
#else
kMaximumMessageSize = 1792 * 1024 * 1024, // 1.75GB
#endif
// Amount of data to read at once from the pipe.
kReadBufferSize = 4 * 1024,
// Maximum size of a message that we allow to be copied (rather than moved).