debian/patches/0001-conf-set-pty_info-to-NULL-after-free.patch

   1 From e00c024230e457a0f37ea5c90bd8caac0c30020e Mon Sep 17 00:00:00 2001
   2 From: Wolfgang Bumiller <w.bumiller@proxmox.com>
   3 Date: Thu, 28 Jul 2016 11:52:18 +0200
   4 Subject: [PATCH] conf: set pty_info to NULL after free
   5
   6 This fixes a double free corruption on container-requested
   7 reboots when lxc_spawn() fails before receiving the ttys, as
   8 lxc_fini() (part of __lxc_start()'s cleanup) calls
   9 lxc_delete_tty().
  10
  11 Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
  12 ---
  13  src/lxc/conf.c | 1 +
  14  1 file changed, 1 insertion(+)
  15
  16 diff --git a/src/lxc/conf.c b/src/lxc/conf.c
  17 index 48a2978..1e330ac 100644
  18 --- a/src/lxc/conf.c
  19 +++ b/src/lxc/conf.c
  20 @@ -3327,6 +3327,7 @@ void lxc_delete_tty(struct lxc_tty_info *tty_info)
  21         }
  22
  23         free(tty_info->pty_info);
  24 +       tty_info->pty_info = NULL;
  25         tty_info->nbtty = 0;
  26  }
  27
  28 --
  29 2.1.4
  30