[Bug binutils/26239] New: memory leak in libiberty, hashtab.c

[featherrain26 at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=26239

            Bug ID: 26239
           Summary: memory leak in libiberty, hashtab.c
           Product: binutils
           Version: 2.36 (HEAD)
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: featherrain26 at gmail dot com
  Target Milestone: ---

Created attachment 12698
  --> https://sourceware.org/bugzilla/attachment.cgi?id=12698&action=edit
leak instance

Hi, there.

There is a memory leak in file libiberty/hashtab.c.

Here is the reproducing environment and procedure:

Distributor ID: Ubuntu
Description:    Ubuntu 16.04.6 LTS
Release:        16.04
Codename:       xenial
gcc:            5.4.0

compilation:
CFLAGS="-fsanitize=address,undefined" ./configure

nm-new -C -a -l --synthetic poc


Here is the error message:

==77316==ERROR: LeakSanitizer: detected memory leaks

 Direct leak of 224 byte(s) in 2 object(s) allocated from:
     #0 0x7f88f652c7fa in __interceptor_calloc
(/usr/lib/x86_64-linux-gnu/libasan.so.2+0x987fa)
     #1 0x93545c in htab_create_typed_alloc ../../libiberty/hashtab.c:357
     #2 0x93545c in htab_create_alloc ../../libiberty/hashtab.c:285

 Direct leak of 24 byte(s) in 1 object(s) allocated from:
     #0 0x7f88f652c662 in malloc
(/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98662)
     #1 0x45bff7 in bfd_malloc ../../bfd/libbfd.c:275

 Indirect leak of 208 byte(s) in 2 object(s) allocated from:
     #0 0x7f88f652c7fa in __interceptor_calloc
(/usr/lib/x86_64-linux-gnu/libasan.so.2+0x987fa)
     #1 0x935473 in htab_create_typed_alloc ../../libiberty/hashtab.c:360
     #2 0x935473 in htab_create_alloc ../../libiberty/hashtab.c:285

 SUMMARY: AddressSanitizer: 456 byte(s) leaked in 5 allocation(s).

Regards,

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