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| author | Ulrich Drepper <drepper@gmail.com> | 2011-10-29 12:51:53 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-10-29 12:51:53 -0400 |
| commit | c9aafacee48275d85d86f25ab4569516f180846a (patch) | |
| tree | 4536b3eef5c45350700078df361166215b2b0b9e /elf/sprof.c | |
| parent | d272e7f19dc2dae6d215f6ca6512d042575ed736 (diff) | |
| download | glibc-c9aafacee48275d85d86f25ab4569516f180846a.tar.gz | |
Correctly NUL-terminate link name in sprof
Diffstat (limited to 'elf/sprof.c')
| -rw-r--r-- | elf/sprof.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/elf/sprof.c b/elf/sprof.c index dbe217b083..069649a654 100644 --- a/elf/sprof.c +++ b/elf/sprof.c @@ -596,10 +596,11 @@ load_shobj (const char *name) static const char procpath[] = "/proc/self/fd/%d"; char origprocname[sizeof (procpath) + sizeof (int) * 3]; snprintf (origprocname, sizeof (origprocname), procpath, fd); - char *origlink = (char *) alloca (PATH_MAX + 1); - origlink[PATH_MAX] = '\0'; - if (readlink (origprocname, origlink, PATH_MAX) == -1) + char *origlink = (char *) alloca (PATH_MAX); + ssize_t n = readlink (origprocname, origlink, PATH_MAX) + if (n == -1) goto no_debuginfo; + origlink[n] = '\0'; /* Try to find the actual file. There are three places: 1. the same directory the DSO is in |