| commit | d2d95688f81fcce492b46b8e260bdf4f6e0b679b | [log] [tgz] |
|---|---|---|
| author | Josh Gao <jmgao@google.com> | Thu Jul 14 16:43:12 2016 -0700 |
| committer | gitbuildkicker <android-build@google.com> | Tue Aug 16 15:52:46 2016 -0700 |
| tree | 62273ca194a87316582c85380f8da15c7bc403f8 | |
| parent | 3b268646f802d72f9b53800ac00540201223cf2e [diff] |
DO NOT MERGE: debuggerd: verify that traced threads belong to the right process.
Fix two races in debuggerd's PTRACE_ATTACH logic:
1. The target thread in a crash dump request could exit between the
/proc/<pid>/task/<tid> check and the PTRACE_ATTACH.
2. Sibling threads could exit between listing /proc/<pid>/task and the
PTRACE_ATTACH.
Backport of NYC change I4dfe1ea30e2c211d2389321bd66e3684dd757591
Bug: http://b/29555636
Change-Id: I6c6efcf82a49bca140d761b2d1de04215ba4d252