[LU-9412] A invalid memory write in llapi_layout_to_lum

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.10.0
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: Zhenyu Xu

Description

valgrind found a bug in llapi_layout_to_lum()

 

==8402== Invalid write of size 4
==8402==    at 0x41AA66: llapi_layout_to_lum (liblustreapi_layout.c:620)
==8402==    by 0x41AE2C: llapi_layout_file_open (liblustreapi_layout.c:1460)
==8402==    by 0x408F4A: lfs_component_create (lfs.c:728)
==8402==    by 0x40B8BB: lfs_setstripe (lfs.c:1301)
==8402==    by 0x41F17E: Parser_execarg (parser.c:115)
==8402==    by 0x409A37: main (lfs.c:5467)
==8402==  Address 0x4e56a60 is 32 bytes inside a block of size 176 free'd
==8402==    at 0x4A06C20: realloc (vg_replace_malloc.c:662)
==8402==    by 0x41A91B: llapi_layout_to_lum (liblustreapi_layout.c:559)
==8402==    by 0x41AE2C: llapi_layout_file_open (liblustreapi_layout.c:1460)
==8402==    by 0x408F4A: lfs_component_create (lfs.c:728)
==8402==    by 0x40B8BB: lfs_setstripe (lfs.c:1301)
==8402==    by 0x41F17E: Parser_execarg (parser.c:115)
==8402==    by 0x409A37: main (lfs.c:5467)