tree 428ef651e5904677f5c823d738739de9a4b2fe7e
parent 40373195eeba898908cfe75f59705084a703e418
author Chia-hung Duan <chiahungduan@google.com> 1685036170 +0000
committer Copybara-Service <copybara-worker@google.com> 1685038259 -0700

[scudo] releaseToOSMaybe can fail if it can't allocate PageMap

PageMap is allocated with MAP_ALLOWNOMEM if there's no static buffer
left. So it can be failed and return nullptr without any assertion
triggered. Instead of crashing in the releaseToOSMaybe in the middle,
just return and let the program handles the page failure.

Reviewed By: cferris

Differential Revision: https://reviews.llvm.org/D151379

GitOrigin-RevId: 11ea40cff5413057d823a4b3ac5ac419b674dc56