diff options
| -rw-r--r-- | winsup/cygwin/path.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc index b5efd61b2..c8e73c64c 100644 --- a/winsup/cygwin/path.cc +++ b/winsup/cygwin/path.cc @@ -4307,6 +4307,8 @@ find_fast_cwd_pointer () const uint8_t *use_cwd = rcall + 5 + offset; /* Find first `push %edi' instruction. */ const uint8_t *pushedi = (const uint8_t *) memchr (use_cwd, 0x57, 32); + if (!pushedi) + return NULL; /* ...which should be followed by `mov crit-sect-addr,%edi' then `push %edi', or by just a single `push crit-sect-addr'. */ const uint8_t *movedi = pushedi + 1; |