70 lines
2.7 KiB
Diff
70 lines
2.7 KiB
Diff
From d7793765e75e2c0db31565903b50bb90bced18ff Mon Sep 17 00:00:00 2001
|
|
From: Robbie Harwood <rharwood@redhat.com>
|
|
Date: Mon, 27 Mar 2017 13:24:37 -0400
|
|
Subject: [PATCH] Prevent GSSError/_display_status() infinite recursion
|
|
|
|
I was unable to reproduce the problem, but this should prevent the issue.
|
|
|
|
Resolves: #111
|
|
(cherry picked from commit b7e6c6c5451590f18df965a2a84550a63461d76e)
|
|
---
|
|
gssapi/raw/misc.pyx | 20 +++++++++++---------
|
|
1 file changed, 11 insertions(+), 9 deletions(-)
|
|
|
|
diff --git a/gssapi/raw/misc.pyx b/gssapi/raw/misc.pyx
|
|
index e278c4b..4ea0c55 100644
|
|
--- a/gssapi/raw/misc.pyx
|
|
+++ b/gssapi/raw/misc.pyx
|
|
@@ -139,7 +139,7 @@ def _display_status(unsigned int error_code, bint is_major_code,
|
|
whether or not to call again for further messages
|
|
|
|
Raises:
|
|
- GSSError
|
|
+ ValueError
|
|
"""
|
|
|
|
cdef int status_type
|
|
@@ -165,13 +165,16 @@ def _display_status(unsigned int error_code, bint is_major_code,
|
|
|
|
if maj_stat == GSS_S_COMPLETE:
|
|
call_again = bool(msg_ctx_out)
|
|
-
|
|
msg_out = msg_buff.value[:msg_buff.length]
|
|
gss_release_buffer(&min_stat, &msg_buff)
|
|
return (msg_out, msg_ctx_out, call_again)
|
|
else:
|
|
- # NB(directxman12): this is highly unlikely to cause a recursive loop
|
|
- raise GSSError(maj_stat, min_stat)
|
|
+ # This hides whatever error gss_display_status is complaining about,
|
|
+ # but obviates infinite recursion into stack exhaustion. The
|
|
+ # exception raised here is handled by get_all_statuses(), which prints
|
|
+ # the code.
|
|
+ raise ValueError("gss_display_status call returned failure "
|
|
+ "(major {0}, minor {1}).".format(maj_stat, min_stat))
|
|
|
|
|
|
class GSSErrorRegistry(type):
|
|
@@ -294,8 +297,8 @@ class GSSError(Exception, metaclass=GSSErrorRegistry):
|
|
try:
|
|
msg, ctx, cont = _display_status(code, is_maj)
|
|
res.append(msg.decode(msg_encoding))
|
|
- except GSSError:
|
|
- res.append(u'issue decoding code: {0}'.format(code))
|
|
+ except ValueError as e:
|
|
+ res.append(u'{0} Decoding code: {1}'.format(e, code))
|
|
cont = False
|
|
|
|
while cont:
|
|
@@ -303,9 +306,8 @@ class GSSError(Exception, metaclass=GSSErrorRegistry):
|
|
msg, ctx, cont = _display_status(code, is_maj,
|
|
message_context=ctx)
|
|
res.append(msg.decode(msg_encoding))
|
|
- except GSSError:
|
|
- res.append(u'issue decoding '
|
|
- u'code: {0}'.format(code))
|
|
+ except ValueError:
|
|
+ res.append(u'{0} Decoding code: {1}'.format(e, code))
|
|
cont = False
|
|
|
|
return res
|