From 7c2799f3ba6f8a8186c8883b213c3e59768b1287 Mon Sep 17 00:00:00 2001 From: Tobias Sargeant Date: Tue, 31 Jan 2017 13:42:52 +0000 Subject: Sanitize dumped stacks to remove data that may be identifiable. In order to sanitize the stack contents we erase any pointer-aligned word that could not be interpreted as a pointer into one of the processes' memory mappings, or a small integer (+/-4096). This still retains enough information to unwind stack frames, and also to recover some register values. BUG=682278 Change-Id: I541a13b2e92a9d1aea2c06a50bd769a9e25601d3 Reviewed-on: https://chromium-review.googlesource.com/430050 Reviewed-by: Robert Sesek --- src/client/linux/handler/minidump_descriptor.cc | 2 ++ 1 file changed, 2 insertions(+) (limited to 'src/client/linux/handler/minidump_descriptor.cc') diff --git a/src/client/linux/handler/minidump_descriptor.cc b/src/client/linux/handler/minidump_descriptor.cc index cdb5bf03..bd94474e 100644 --- a/src/client/linux/handler/minidump_descriptor.cc +++ b/src/client/linux/handler/minidump_descriptor.cc @@ -49,6 +49,7 @@ MinidumpDescriptor::MinidumpDescriptor(const MinidumpDescriptor& descriptor) descriptor.address_within_principal_mapping_), skip_dump_if_principal_mapping_not_referenced_( descriptor.skip_dump_if_principal_mapping_not_referenced_), + sanitize_stacks_(descriptor.sanitize_stacks_), microdump_extra_info_(descriptor.microdump_extra_info_) { // The copy constructor is not allowed to be called on a MinidumpDescriptor // with a valid path_, as getting its c_path_ would require the heap which @@ -74,6 +75,7 @@ MinidumpDescriptor& MinidumpDescriptor::operator=( descriptor.address_within_principal_mapping_; skip_dump_if_principal_mapping_not_referenced_ = descriptor.skip_dump_if_principal_mapping_not_referenced_; + sanitize_stacks_ = descriptor.sanitize_stacks_; microdump_extra_info_ = descriptor.microdump_extra_info_; return *this; } -- cgit v1.2.1