https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103792
--- Comment #1 from Matt Cross <mcross at irobot dot com> ---
Address Sanitizer output from executing this:
=================================================================
==29328==ERROR: AddressSanitizer: stack-use-after-scope on address 0xbed737e0
at pc 0xb319b875 bp 0xbed733a0 sp 0xbed733a8
WRITE of size 388 at 0xbed737e0 thread T0
#0 0xb319b872 in memcpy (/usr/lib/brewst.so.d/libasan.so.6+0x2e872)
#1 0x10d92 in process_dummy_recursive(int, Dummy)
/home/mcross/sources/brewst3/utils/mcross-test/mcross-test1.cpp:41
#2 0x10dd8 in exc_cleanup_test()
/home/mcross/sources/brewst3/utils/mcross-test/mcross-test1.cpp:65
#3 0x10de4 in main
/home/mcross/sources/brewst3/utils/mcross-test/mcross-test1.cpp:70
#4 0xb2eb455a in __libc_start_main (/usr/lib/brewst.so.d/libc.so.6+0x1755a)
Address 0xbed737e0 is located in stack of thread T0
SUMMARY: AddressSanitizer: stack-use-after-scope
(/usr/lib/brewst.so.d/libasan.so.6+0x2e872) in memcpy
Shadow bytes around the buggy address:
0x37dae6a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x37dae6b0: 00 00 00 00 00 00 00 00 f8 f8 f8 f8 f8 f8 f8 f8
0x37dae6c0: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
0x37dae6d0: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
0x37dae6e0: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 00 00 00 00 00 00
=>0x37dae6f0: 00 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8[f8]f8 f8 f8
0x37dae700: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
0x37dae710: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8
0x37dae720: f8 f8 f8 f8 00 00 00 00 00 00 00 00 00 00 00 00
0x37dae730: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x37dae740: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==29328==ABORTING
