diff options
Diffstat (limited to 'elf/dl-deps.c')
| -rw-r--r-- | elf/dl-deps.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/elf/dl-deps.c b/elf/dl-deps.c index b981d49..68e4921 100644 --- a/elf/dl-deps.c +++ b/elf/dl-deps.c @@ -22,6 +22,7 @@ #include <errno.h> #include <stdlib.h> #include <string.h> +#include <unistd.h> #include <sys/param.h> #include <elf/ldsodefs.h> @@ -96,9 +97,15 @@ struct list \ if (__cnt != 0) \ { \ - char *__newp = (char *) alloca (DL_DST_REQUIRED (l, __str, \ - strlen (__str), \ - __cnt)); \ + char *__newp; \ + \ + /* DST must not appear in SUID/SGID programs. */ \ + if (__libc_enable_secure) \ + _dl_signal_error (0, __str, \ + "DST not allowed in SUID/SGID programs"); \ + \ + __newp = (char *) alloca (DL_DST_REQUIRED (l, __str, strlen (__str), \ + __cnt)); \ \ __result = DL_DST_SUBSTITUTE (l, __str, __newp, 0); \ \ |