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fix console overwrite any file

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Prevent to specify a file not belonging to us as the output for the console

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
This commit is contained in:
Daniel Lezcano 2010-07-20 13:45:44 +02:00
parent 28f602ff47
commit 00dbc43e30
1 changed files with 6 additions and 5 deletions
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11
src/lxc/console.c
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@ -30,10 +30,10 @@
#include <sys/types.h> #include <sys/types.h>
#include <sys/un.h> #include <sys/un.h>
#include <lxc/log.h> #include "log.h"
#include <lxc/conf.h> #include "conf.h"
#include <lxc/start.h> /* for struct lxc_handler */ #include "start.h" /* for struct lxc_handler */
#include "caps.h"
#include "commands.h" #include "commands.h"
#include "mainloop.h" #include "mainloop.h"
#include "af_unix.h" #include "af_unix.h"
@ -192,7 +192,8 @@ int lxc_create_console(struct lxc_conf *conf)
goto err; goto err;
} }
fd = open(console->path, O_CLOEXEC | O_RDWR | O_CREAT | O_APPEND, 0600); fd = lxc_unpriv(open(console->path, O_CLOEXEC | O_RDWR | O_CREAT |
O_APPEND, 0600));
if (fd < 0) { if (fd < 0) {
SYSERROR("failed to open '%s'", console->path); SYSERROR("failed to open '%s'", console->path);
goto err; goto err;