Package: libc6
Version: 2.18-4
If the fd refers to a terminal device, but not a pty master, ptsname_r()
passes the buffer (which would be normally uninitialized) unchanged to
stat64:
$ cat test.c
#define _XOPEN_SOURCE
#include <stdlib.h>
int main(int argc, char **argv)
{
char buffer[128] = "garbage";
ptsname_r(0, buffer, sizeof buffer);
return 0;
}
$ gcc test.c -o t
$ strace -o '| grep -B2 garbage' ./t
ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS,
{B38400 opost isig icanon echo ...}) = 0
ioctl(0, TIOCGPTN, [-142970892]) = -1 ENOTTY (Inappropriate ioctl for
device)
stat64("garbage", 0xfffafe20) = -1 ENOENT (No such file or directory)
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (990, 'unstable'), (500, 'experimental')
Architecture: i386 (x86_64)
Foreign Architectures: amd64
Kernel: Linux 3.12-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=pl_PL.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages libc6:i386 depends on:
ii libgcc1 1:4.9-20140303-1
Versions of packages libc6:i386 recommends:
ii libc6-i686 2.18-4
--
Jakub Wilk
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