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| author | Ulrich Drepper <drepper@redhat.com> | 2009-11-24 18:24:14 -0800 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-11-24 18:24:14 -0800 |
| commit | 139ee080b6b428240bf49f3e6361f3ac729f891a (patch) | |
| tree | 6d995b56cab939c5107371e83cd5fa53fe3c3284 /login | |
| parent | fa214705b957d20621cb1190b467aa88bc9b69a3 (diff) | |
| download | glibc-139ee080b6b428240bf49f3e6361f3ac729f891a.zip glibc-139ee080b6b428240bf49f3e6361f3ac729f891a.tar.gz glibc-139ee080b6b428240bf49f3e6361f3ac729f891a.tar.bz2 | |
Prevent unintended file desriptor leak in grantpt.
The pt_chown program is completely transparently called. It might
not be able to live with the various file descriptors the program
has open at the time of the call (e.g., under SELinux). Close all
but the needed descriptor and connect stdin, stdout, and stderr
with /dev/null. pt_chown shouldn't print anything when called to
do real work.
Diffstat (limited to 'login')
| -rw-r--r-- | login/programs/pt_chown.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/login/programs/pt_chown.c b/login/programs/pt_chown.c index 7e279a5..4c36f2ce 100644 --- a/login/programs/pt_chown.c +++ b/login/programs/pt_chown.c @@ -154,8 +154,7 @@ main (int argc, char *argv[]) # define ncap_list (sizeof (cap_list) / sizeof (cap_list[0])) cap_t caps = cap_init (); if (caps == NULL) - error (FAIL_ENOMEM, errno, - _("Failed to initialize drop of capabilities")); + return FAIL_ENOMEM; /* There is no reason why these should not work. */ cap_set_flag (caps, CAP_PERMITTED, ncap_list, cap_list, CAP_SET); @@ -166,7 +165,7 @@ main (int argc, char *argv[]) cap_free (caps); if (__builtin_expect (res != 0, 0)) - error (FAIL_EXEC, errno, _("cap_set_proc failed")); + return FAIL_EXEC; } #endif |