[Bug sanitizer/82116] New: "nested bug in the same thread" when a bug is found while reporting another one

[mephi42 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82116

            Bug ID: 82116
           Summary: "nested bug in the same thread" when a bug is found
                    while reporting another one
           Product: gcc
           Version: 7.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mephi42 at gmail dot com
                CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
                    jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at gcc dot gnu.org
  Target Milestone: ---

Created attachment 42135
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42135&action=edit
minimal reproducible example

The attached program fails with

    AddressSanitizer: nested bug in the same thread, aborting.

without diagnosing the stack-buffer-overflow.



In rare cases it exits correctly with the expected

    AddressSanitizer: while reporting a bug found another one. Ignoring.
    ERROR: AddressSanitizer: stack-buffer-overflow on address ...