yasm v1.3.0 was discovered to contain a memory leak via the function yasm_intnum_copy at /libyasm/intnum.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.
cpe:2.3:a:yasm_project:yasm:1.3.0:*:*:*:*:*:*:*
AD6556F7-3880-452A-ABA9-1A8A14BA41F3
OR


I found a memory leak bug in yasm.
Please confirm.
Thanks!



### Test Environment
Ubuntu 20.04, 64 bit yasm (version: v1.3.0 ;master)

### How to trigger
Compile the program with AddressSanitizer
Run command 
$ touch u
$ ./yasm -ium u

### Details
ASAN report
$./yasm -ium u 
```
yasm: file name already has no extension: output will be in `yasm.out'

=================================================================
==973537==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x499c1d in __interceptor_malloc (/home/root/randomFuzz/yasm/yasm/yasm_a_l_e/yasm+0x499c1d)
    #1 0x53d0af in def_xmalloc /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/xmalloc.c:69:14
    #2 0x511025 in yasm_intnum_copy /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/intnum.c:397:22
    #3 0x638eb4 in group_assign_vstart_recurse /home/root/FuzzDateset/yasm/yasm-1.3.0/modules/objfmts/bin/bin-objfmt.c:424:30
    #4 0x632759 in bin_objfmt_output /home/root/FuzzDateset/yasm/yasm-1.3.0/modules/objfmts/bin/bin-objfmt.c:1334:9
    #5 0x4d07a2 in do_assemble /home/root/FuzzDateset/yasm/yasm-1.3.0/frontends/yasm/yasm.c:546:5
    #6 0x4ccce0 in main /home/root/FuzzDateset/yasm/yasm-1.3.0/frontends/yasm/yasm.c:749:12
    #7 0x7f1562a88082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x499c1d in __interceptor_malloc (/home/root/randomFuzz/yasm/yasm/yasm_a_l_e/yasm+0x499c1d)
    #1 0x53d0af in def_xmalloc /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/xmalloc.c:69:14
    #2 0x510522 in yasm_intnum_create_uint /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/intnum.c:310:25
    #3 0x636694 in bin_lma_create_group /home/root/FuzzDateset/yasm/yasm-1.3.0/modules/objfmts/bin/bin-objfmt.c:248:22
    #4 0x51d0f2 in yasm_object_sections_traverse /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/section.c:544:22
    #5 0x62fb9e in bin_objfmt_output /home/root/FuzzDateset/yasm/yasm-1.3.0/modules/objfmts/bin/bin-objfmt.c:1147:9
    #6 0x4d07a2 in do_assemble /home/root/FuzzDateset/yasm/yasm-1.3.0/frontends/yasm/yasm.c:546:5
    #7 0x4ccce0 in main /home/root/FuzzDateset/yasm/yasm-1.3.0/frontends/yasm/yasm.c:749:12
    #8 0x7f1562a88082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16

SUMMARY: AddressSanitizer: 32 byte(s) leaked in 2 allocation(s).
```

yasm memory leak
This is a GitHub Issue
repo:yasm
owner:yasm
Title : yasm memory leak
Issue date:

--- start body ---


I found a memory leak bug in yasm.
Please confirm.
Thanks!



### Test Environment
Ubuntu 20.04, 64 bit yasm (version: v1.3.0 ;master)

### How to trigger
Compile the program with AddressSanitizer
Run command 
$ touch u
$ ./yasm -ium u

### Details
ASAN report
$./yasm -ium u 
```
yasm: file name already has no extension: output will be in `yasm.out'

=================================================================
==973537==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x499c1d in __interceptor_malloc (/home/root/randomFuzz/yasm/yasm/yasm_a_l_e/yasm+0x499c1d)
    #1 0x53d0af in def_xmalloc /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/xmalloc.c:69:14
    #2 0x511025 in yasm_intnum_copy /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/intnum.c:397:22
    #3 0x638eb4 in group_assign_vstart_recurse /home/root/FuzzDateset/yasm/yasm-1.3.0/modules/objfmts/bin/bin-objfmt.c:424:30
    #4 0x632759 in bin_objfmt_output /home/root/FuzzDateset/yasm/yasm-1.3.0/modules/objfmts/bin/bin-objfmt.c:1334:9
    #5 0x4d07a2 in do_assemble /home/root/FuzzDateset/yasm/yasm-1.3.0/frontends/yasm/yasm.c:546:5
    #6 0x4ccce0 in main /home/root/FuzzDateset/yasm/yasm-1.3.0/frontends/yasm/yasm.c:749:12
    #7 0x7f1562a88082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16

Direct leak of 16 byte(s) in 1 object(s) allocated from:
    #0 0x499c1d in __interceptor_malloc (/home/root/randomFuzz/yasm/yasm/yasm_a_l_e/yasm+0x499c1d)
    #1 0x53d0af in def_xmalloc /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/xmalloc.c:69:14
    #2 0x510522 in yasm_intnum_create_uint /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/intnum.c:310:25
    #3 0x636694 in bin_lma_create_group /home/root/FuzzDateset/yasm/yasm-1.3.0/modules/objfmts/bin/bin-objfmt.c:248:22
    #4 0x51d0f2 in yasm_object_sections_traverse /home/root/FuzzDateset/yasm/yasm-1.3.0/libyasm/section.c:544:22
    #5 0x62fb9e in bin_objfmt_output /home/root/FuzzDateset/yasm/yasm-1.3.0/modules/objfmts/bin/bin-objfmt.c:1147:9
    #6 0x4d07a2 in do_assemble /home/root/FuzzDateset/yasm/yasm-1.3.0/frontends/yasm/yasm.c:546:5
    #7 0x4ccce0 in main /home/root/FuzzDateset/yasm/yasm-1.3.0/frontends/yasm/yasm.c:749:12
    #8 0x7f1562a88082 in __libc_start_main /build/glibc-SzIz7B/glibc-2.31/csu/../csu/libc-start.c:308:16

SUMMARY: AddressSanitizer: 32 byte(s) leaked in 2 allocation(s).
```

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comments :
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