diff options
Diffstat (limited to 'lib/careadlinkat.c')
| -rw-r--r-- | lib/careadlinkat.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/careadlinkat.c b/lib/careadlinkat.c index e2909c766d..6e4aa1395f 100644 --- a/lib/careadlinkat.c +++ b/lib/careadlinkat.c @@ -135,6 +135,7 @@ careadlinkat (int fd, char const *filename, if (buf == stack_buf) { char *b = (char *) alloc->allocate (link_size); + buf_size = link_size; if (! b) break; memcpy (b, buf, link_size); @@ -158,6 +159,11 @@ careadlinkat (int fd, char const *filename, buf_size *= 2; else if (buf_size < buf_size_max) buf_size = buf_size_max; + else if (buf_size_max < SIZE_MAX) + { + errno = ENAMETOOLONG; + return NULL; + } else break; buf = (char *) alloc->allocate (buf_size); @@ -165,7 +171,7 @@ careadlinkat (int fd, char const *filename, while (buf); if (alloc->die) - alloc->die (); + alloc->die (buf_size); errno = ENOMEM; return NULL; } |