diff options
Diffstat (limited to 'elf/dl-version.c')
| -rw-r--r-- | elf/dl-version.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/elf/dl-version.c b/elf/dl-version.c index 8966d61..2fbf494 100644 --- a/elf/dl-version.c +++ b/elf/dl-version.c @@ -1,5 +1,5 @@ /* Handle symbol and library versioning. - Copyright (C) 1997-2024 Free Software Foundation, Inc. + Copyright (C) 1997-2025 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -357,6 +357,13 @@ _dl_check_map_versions (struct link_map *map, int verbose, int trace_mode) ent = (ElfW(Verdef) *) ((char *) ent + ent->vd_next); } } + + /* The empty string has ELF hash zero. This avoids a NULL check + before the version string comparison in check_match in + dl-lookup.c. */ + for (unsigned int i = 0; i < map->l_nversions; ++i) + if (map->l_versions[i].name == NULL) + map->l_versions[i].name = ""; } /* When there is a DT_VERNEED entry with libc.so on DT_NEEDED, issue |