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| author | Corinna Vinschen <corinna@vinschen.de> | 2011-01-31 13:58:59 +0000 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2011-01-31 13:58:59 +0000 |
| commit | 2daa7e07cea5fb92a97d4d25c62c3f301523eab0 (patch) | |
| tree | 9fffb30e076e13c4e0bfd2c977e05b34c90b9d8c | |
| parent | adef8606bdb87500a0aa5595de4d09c21a85b8fa (diff) | |
| download | cygnal-2daa7e07cea5fb92a97d4d25c62c3f301523eab0.tar.gz cygnal-2daa7e07cea5fb92a97d4d25c62c3f301523eab0.tar.bz2 cygnal-2daa7e07cea5fb92a97d4d25c62c3f301523eab0.zip | |
* syscalls.cc (utmp_data): Fix potential buffer overflow.
| -rw-r--r-- | winsup/cygwin/ChangeLog | 4 | ||||
| -rw-r--r-- | winsup/cygwin/syscalls.cc | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 25751d32e..fb21b9dbd 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,5 +1,9 @@ 2011-01-31 Corinna Vinschen <corinna@vinschen.de> + * syscalls.cc (utmp_data): Fix potential buffer overflow. + +2011-01-31 Corinna Vinschen <corinna@vinschen.de> + * fhandler_socket.cc (address_in_use): Improve comment readability. 2011-01-30 Corinna Vinschen <corinna@vinschen.de> diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc index 6ea3c2803..825c1cfcd 100644 --- a/winsup/cygwin/syscalls.cc +++ b/winsup/cygwin/syscalls.cc @@ -3508,7 +3508,7 @@ static struct utmp utmp_data_buf[16]; static unsigned utix = 0; #define nutdbuf (sizeof (utmp_data_buf) / sizeof (utmp_data_buf[0])) #define utmp_data ({ \ - if (utix > nutdbuf) \ + if (utix >= nutdbuf) \ utix = 0; \ utmp_data_buf + utix++; \ }) |