```
==28724==ERROR: AddressSanitizer: stack-use-after-scope on address 0x7f028b500060 at pc 0x55edc7ea2e85 bp 0x7fff7d70a4d0 sp 0x7fff7d70a4c8
 READ of size 4 at 0x7f028b500060 thread T0
 /usr/bin/llvm-symbolizer-18: /home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4: no version information available (required by /usr/bin/llvm-symbolizer-18)
 /usr/bin/llvm-symbolizer-18: symbol lookup error: /home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4: undefined symbol: __asan_option_detect_stack_use_after_return
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't write to symbolizer at fd 9
 /usr/bin/llvm-symbolizer-18: /home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4: no version information available (required by /usr/bin/llvm-symbolizer-18)
 /usr/bin/llvm-symbolizer-18: symbol lookup error: /home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4: undefined symbol: __asan_option_detect_stack_use_after_return
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
 ==28724==WARNING: Can't read from symbolizer at fd 6
     #0 0x55edc7ea2e84  (/home/runner/work/curl/curl/bld/tests/libtest/.libs/libtests+0x1b6e84) (BuildId: 7d9c526eeac6e37274bab929807a3ed93d8fe67c)
     #1 0x7f028f6111dd  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x8111dd) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #2 0x7f028f38b8c4  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x58b8c4) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #3 0x7f028f38d60a  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x58d60a) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #4 0x7f028f3796a5  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x5796a5) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #5 0x7f028f11c442  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x31c442) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #6 0x7f028f11bd9c  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x31bd9c) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #7 0x7f028f37891b  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x57891b) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #8 0x7f028f2bb7f3  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x4bb7f3) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #9 0x7f028f28b01d  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x48b01d) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #10 0x7f028f5e3ce4  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x7e3ce4) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     #11 0x7f028f5de4c1  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x7de4c1) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     curl#12 0x7f028f340504  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x540504) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     curl#13 0x7f028f33dba1  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x53dba1) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     curl#14 0x7f028f4f02bd  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x6f02bd) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     curl#15 0x7f028f212a09  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x412a09) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     curl#16 0x7f028f211bae  (/home/runner/work/curl/curl/bld/lib/.libs/libcurl.so.4+0x411bae) (BuildId: 8b44169afc81107024b77ec9a2942da0f6e28bfa)
     curl#17 0x55edc7ea2c73  (/home/runner/work/curl/curl/bld/tests/libtest/.libs/libtests+0x1b6c73) (BuildId: 7d9c526eeac6e37274bab929807a3ed93d8fe67c)
     curl#18 0x55edc7f7b832  (/home/runner/work/curl/curl/bld/tests/libtest/.libs/libtests+0x28f832) (BuildId: 7d9c526eeac6e37274bab929807a3ed93d8fe67c)
     curl#19 0x7f028dc2a1c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 42c84c92e6f98126b3e2230ebfdead22c235b667)
     curl#20 0x7f028dc2a28a  (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 42c84c92e6f98126b3e2230ebfdead22c235b667)
     curl#21 0x55edc7da3a34  (/home/runner/work/curl/curl/bld/tests/libtest/.libs/libtests+0xb7a34) (BuildId: 7d9c526eeac6e37274bab929807a3ed93d8fe67c)
 Address 0x7f028b500060 is located in stack of thread T0 at offset 32 in frame
 ==28724==WARNING: Can't read from symbolizer at fd 6
     #0 0x55edc7ea2717  (/home/runner/work/curl/curl/bld/tests/libtest/.libs/libtests+0x1b6717) (BuildId: 7d9c526eeac6e37274bab929807a3ed93d8fe67c)
   This frame has 1 object(s):
     [32, 36) 'counter' (line 91) <== Memory access at offset 32 is inside this variable
 HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
       (longjmp and C++ exceptions *are* supported)
 ==28724==WARNING: Can't read from symbolizer at fd 6
 SUMMARY: AddressSanitizer: stack-use-after-scope (/home/runner/work/curl/curl/bld/tests/libtest/.libs/libtests+0x1b6e84) (BuildId: 7d9c526eeac6e37274bab929807a3ed93d8fe67c)
 Shadow bytes around the buggy address:
   0x7f028b4ffd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   0x7f028b4ffe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   0x7f028b4ffe80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   0x7f028b4fff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
   0x7f028b4fff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 =>0x7f028b500000: f5 f5 f5 f5 f5 f5 f5 f5 f1 f1 f1 f1[f8]f3 f3 f3
   0x7f028b500080: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
   0x7f028b500100: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
   0x7f028b500180: f1 f1 f1 f1 04 f2 f8 f3 f5 f5 f5 f5 f5 f5 f5 f5
   0x7f028b500200: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
   0x7f028b500280: f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5
 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
 ==28724==ABORTING
```
https://github.com/curl/curl/actions/runs/15590177615/job/43906987845?pr=17598#step:39:1276