[Bug dynamic-link/32498] New: Leaks from call_init (dl-init.c:74)

[pjfloyd at wanadoo dot fr]

https://sourceware.org/bugzilla/show_bug.cgi?id=32498

            Bug ID: 32498
           Summary: Leaks from call_init (dl-init.c:74)
           Product: glibc
           Version: 2.40
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: dynamic-link
          Assignee: unassigned at sourceware dot org
          Reporter: pjfloyd at wanadoo dot fr
  Target Milestone: ---

This is related to the following Valgrind bugzilla item
https://bugs.kde.org/show_bug.cgi?id=358980 from comment 3 onwards.

The leaks that I get are

==16702== HEAP SUMMARY:
==16702==     in use at exit: 24,879 bytes in 29 blocks
==16702==   total heap usage: 335 allocs, 306 frees, 233,296 bytes allocated
==16702== 
==16702== 8 bytes in 1 blocks are definitely lost in loss record 1 of 15
==16702==    at 0x48447C2: malloc (vg_replace_malloc.c:446)
==16702==    by 0x96A0A35: ???
==16702==    by 0x96B788F: ???
==16702==    by 0x969F1BB: ???
==16702==    by 0x40045B6: call_init (dl-init.c:74)
==16702==    by 0x40045B6: call_init (dl-init.c:26)
==16702==    by 0x40046AC: _dl_init (dl-init.c:121)
==16702==    by 0x40015C1: _dl_catch_exception (dl-catch.c:215)
==16702==    by 0x400B4FB: dl_open_worker (dl-open.c:829)
==16702==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==16702==    by 0x400B903: _dl_open (dl-open.c:905)
==16702==    by 0x4CA3F13: dlopen_doit (dlopen.c:56)
==16702==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==16702==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==16702==    by 0x4CA39F2: _dlerror_run (dlerror.c:138)
==16702==    by 0x4CA3FCE: dlopen_implementation (dlopen.c:71)
==16702==    by 0x4CA3FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==16702==    by 0x10917D: main (main.cpp:6)
==16702== 
==16702== 96 bytes in 1 blocks are definitely lost in loss record 10 of 15
==16702==    at 0x484BEFF: calloc (vg_replace_malloc.c:1675)
==16702==    by 0x96A0A6D: ???
==16702==    by 0x969F100: ???
==16702==    by 0x969F1D7: ???
==16702==    by 0x40045B6: call_init (dl-init.c:74)
==16702==    by 0x40045B6: call_init (dl-init.c:26)
==16702==    by 0x40046AC: _dl_init (dl-init.c:121)
==16702==    by 0x40015C1: _dl_catch_exception (dl-catch.c:215)
==16702==    by 0x400B4FB: dl_open_worker (dl-open.c:829)
==16702==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==16702==    by 0x400B903: _dl_open (dl-open.c:905)
==16702==    by 0x4CA3F13: dlopen_doit (dlopen.c:56)
==16702==    by 0x4001522: _dl_catch_exception (dl-catch.c:241)
==16702==    by 0x4001678: _dl_catch_error (dl-catch.c:260)
==16702==    by 0x4CA39F2: _dlerror_run (dlerror.c:138)
==16702==    by 0x4CA3FCE: dlopen_implementation (dlopen.c:71)
==16702==    by 0x4CA3FCE: dlopen@@GLIBC_2.34 (dlopen.c:81)
==16702==    by 0x10917D: main (main.cpp:6)
==16702== 
==16702== LEAK SUMMARY:
==16702==    definitely lost: 104 bytes in 2 blocks
==16702==    indirectly lost: 0 bytes in 0 blocks
==16702==      possibly lost: 0 bytes in 0 blocks
==16702==    still reachable: 24,775 bytes in 27 blocks
==16702==         suppressed: 0 bytes in 0 blocks
==16702== Reachable blocks (those to which a pointer was found) are not shown.
==16702== To see them, rerun with: --leak-check=full --show-leak-kinds=all


I'm ignoring the still-reachables for now.

Details:
Arch linux updated on 24 Dec 2024 running in a VirtualBox VM
[paulf@archlinux dlopen-leaks]$ lscpu
Architecture:             x86_64
  CPU op-mode(s):         32-bit, 64-bit
  Address sizes:          36 bits physical, 48 bits virtual
  Byte Order:             Little Endian
CPU(s):                   1
  On-line CPU(s) list:    0
Vendor ID:                GenuineIntel
  Model name:             Intel(R) Xeon(R) CPU           W3520  @ 2.67GHz
    CPU family:           6
    Model:                26
    Thread(s) per core:   1
    Core(s) per socket:   1
    Socket(s):            1
    Stepping:             5
    BogoMIPS:             5335.55
    Flags:                fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx rdtscp lm
constant_tsc rep_good nopl xtopolo
                          gy nonstop_tsc cpuid tsc_known_freq pni monitor ssse3
cx16 sse4_1 sse4_2 x2apic popcnt hypervisor lahf_lm pti


Valgrind 3.24.0 (same with Valgrind built from git HEAD).

gcc (GCC) 14.2.1 20240910

[paulf@archlinux dlopen-leaks]$ /lib/ld-linux-x86-64.so.2 --version
ld.so (GNU libc) stable release version 2.40.

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