[Samba4] Valgrind trace of ntlm_auth crashing on failed authentication with debuglevel being > 2

Kai Blin kai.blin at gmail.com
Thu Aug 3 08:22:09 GMT 2006


Hi folks,

here's the valgrind trace of samba4's ntlm_auth crashing in squid-2.5-ntlmssp 
mode when the client sent an invalid password and DEBUGLEVEL is 3 or greater.

ntlm_password_check: Checking NT MD4 password
ntlm_password_check: NT MD4 password check failed for user Administrator
auth_check_password: sam_ignoredomain authentication for user 
[WORKGROUP\Administrator] FAILED with error NT_STATUS_WRONG_PASSWORD
==23193== Conditional jump or move depends on uninitialised value(s)
==23193==    at 0x1BC12B83: vfprintf (in /lib/tls/libc-2.3.5.so)
==23193==    by 0x1BC33800: vasprintf (in /lib/tls/libc-2.3.5.so)
==23193==    by 0x1BBBBC57: do_debug (debug.c:113)
==23193==    by 0x80500B0: auth_check_password (auth.c:177)
==23193==    by 0x1B92FC44: auth_ntlmssp_check_password (ntlmssp_server.c:720)
==23193==    by 0x1B92F964: ntlmssp_server_auth (ntlmssp_server.c:623)
==23193==    by 0x1B92BCBB: gensec_ntlmssp_update (ntlmssp.c:216)
==23193==    by 0x1B929BCA: gensec_update (gensec.c:904)
==23193==    by 0x804C856: manage_gensec_request (ntlm_auth.c:581)
==23193==    by 0x804DC20: manage_squid_request (ntlm_auth.c:945)
==23193==    by 0x804DC7A: squid_stream (ntlm_auth.c:954)
==23193==    by 0x804DE5B: main (ntlm_auth.c:1045)
auth_check_password: authentication for user [(null)\(null)] FAILED with error 
NT_STATUS_WRONG_PASSWORD
GENSEC login failed: NT_STATUS_LOGON_FAILURE

Hope that helps.
Kai

-- 
Kai Blin, <kai Dot blin At gmail Dot com>
WorldForge developer    http://www.worldforge.org/
Wine developer          http://wiki.winehq.org/KaiBlin/
--
Will code for cotton.
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