diff options
Diffstat (limited to 'sysdeps/unix')
| -rw-r--r-- | sysdeps/unix/sysv/linux/shm_open.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/shm_open.c b/sysdeps/unix/sysv/linux/shm_open.c index 41d9315..482b49c 100644 --- a/sysdeps/unix/sysv/linux/shm_open.c +++ b/sysdeps/unix/sysv/linux/shm_open.c @@ -148,14 +148,15 @@ shm_open (const char *name, int oflag, mode_t mode) while (name[0] == '/') ++name; - if (name[0] == '\0') + namelen = strlen (name); + + /* Validate the filename. */ + if (name[0] == '\0' || namelen > NAME_MAX || strchr (name, '/') == NULL) { - /* The name "/" is not supported. */ __set_errno (EINVAL); return -1; } - namelen = strlen (name); fname = (char *) alloca (mountpoint.dirlen + namelen + 1); __mempcpy (__mempcpy (fname, mountpoint.dir, mountpoint.dirlen), name, namelen + 1); @@ -237,14 +238,15 @@ shm_unlink (const char *name) while (name[0] == '/') ++name; - if (name[0] == '\0') + namelen = strlen (name); + + /* Validate the filename. */ + if (name[0] == '\0' || namelen > NAME_MAX || strchr (name, '/') == NULL) { - /* The name "/" is not supported. */ __set_errno (ENOENT); return -1; } - namelen = strlen (name); fname = (char *) alloca (mountpoint.dirlen + namelen + 1); __mempcpy (__mempcpy (fname, mountpoint.dir, mountpoint.dirlen), name, namelen + 1); |