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20cbfa4971
The broker attempts to use sbrk() to allocate memory to track ptrace attachments. If the process failed due to an OOM, this system call might fail, the broker falls back to saving attachments on the stack, and then overruns the stack. This change updates the broker to use sys_mmap() instead of sbrk(), which is expected to work at least as well. If sys_mmap() fails or the first mapped page is exhausted, further attachments fail without attempting to save them to the stack. Bug: chromium:1128441 Change-Id: Ibffaa986403adaf3178ee77e6d210053fbf60f26 Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2488280 Reviewed-by: Mark Mentovai <mark@chromium.org> Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Crashpad
Crashpad is a crash-reporting system.
Documentation
- Project status
- Developing Crashpad: instructions for getting the source code, building, testing, and contributing to the project.
- Crashpad interface documentation
- Crashpad tool man pages
- Crashpad overview design
Source Code
Crashpad’s source code is hosted in a Git repository at https://chromium.googlesource.com/crashpad/crashpad.
Other Links
- Bugs can be reported at the Crashpad issue tracker.
- The Crashpad bots perform automated builds and tests.
- crashpad-dev is the Crashpad developers’ mailing list.