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| author | Tobias Sargeant <tobiasjs@google.com> | 2017-01-31 13:42:52 +0000 |
|---|---|---|
| committer | Tobias Sargeant <tobiasjs@chromium.org> | 2017-01-31 14:13:48 +0000 |
| commit | 7c2799f3ba6f8a8186c8883b213c3e59768b1287 (patch) | |
| tree | ee80449b56b37400892627baf1414871e2db6948 /src/client/linux/handler/minidump_descriptor.cc | |
| parent | Fixed a bug where cv record size was not correctly checked. (diff) | |
| download | breakpad-7c2799f3ba6f8a8186c8883b213c3e59768b1287.tar.xz | |
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 <rsesek@chromium.org>
Diffstat (limited to 'src/client/linux/handler/minidump_descriptor.cc')
| -rw-r--r-- | src/client/linux/handler/minidump_descriptor.cc | 2 |
1 files changed, 2 insertions, 0 deletions
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; } |