2 Commits

Author SHA1 Message Date
Justin Cohen
7b105f83ab ios: Properly handle overflows in scoped_vm_read.
Passing -1 (or size_t max) to ScopedVMRead would succeed, because the
amount of memory to be read would overflow vm_address_t/vm_size_t and
turn into something reasonable. ScopedVMRead would return true having
only read a miniscule subset of the requested data length.

Bug: 1348341
Change-Id: I061a1d86928f211c541a6378a78ee045d489a838
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3791710
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2022-07-29 02:33:32 +00:00
Justin Cohen
d5b3a1d531 ios: Add support for ScopedVMRead and RAWLOG
Adds wrapper to vm_read and vm_deallocate memory to allow for safe
in-process memory reads during crashes.

Also adds a logging utility safe for in-process exception handling.

Bug: crashpad: 31
Change-Id: I658f3181cbec40a79e304b7306466e10c003564f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2875349
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2021-05-07 19:00:19 +00:00