[Bug 1094438] Re: Samba crashes invalid pointer: 0x00007f0bc3de7590

[Ubuntu Foundations Team Bug Bot]

The attachment "samba-3.6.3-missing-gss-buffer-desc-init.patch" seems to
be a patch.  If it isn't, please remove the "patch" flag from the
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** Tags added: patch

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Title:
  Samba crashes invalid pointer: 0x00007f0bc3de7590

Status in samba package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 12.04.1 LTS
  Samba 2:3.6.3-2ubuntu2.3
  krb5-config 2.2
  Samba on ubuntu joined to Windows 2003 domain
  Share on /media/100RAGE = /dev/md0 (software raid5)

  getent passwd, getent group working fine.
  All working fine, except I see errors in samba logs.

  We have two of the same server with the same configuration (differents
  only in hostname).

  Samba crushes everytime after opening shared folder from windows
  workstation on both servers.

    BACKTRACE: 30 stack frames:
     #0 smbd(log_stack_trace+0x1a) [0x7f4533d61aea]
     #1 smbd(smb_panic+0x25) [0x7f4533d61bc5]
     #2 smbd(+0x409e88) [0x7f4533d52e88]
     #3 /lib/x86_64-linux-gnu/libc.so.6(+0x364a0) [0x7f45309024a0]
     #4 /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x35) [0x7f4530902425]
     #5 /lib/x86_64-linux-gnu/libc.so.6(abort+0x17b) [0x7f4530905b8b]
     #6 /lib/x86_64-linux-gnu/libc.so.6(+0x7439e) [0x7f453094039e]
     #7 /lib/x86_64-linux-gnu/libc.so.6(+0x7eb96) [0x7f453094ab96]
     #8 /usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2(gss_release_buffer+0x28) [0x7f453309fb78]
     #9 smbd(gse_get_pac_blob+0x202) [0x7f4533dcf182]
     #10 smbd(gssapi_server_get_user_info+0x6b) [0x7f4533c661ab]
     #11 smbd(+0x31167d) [0x7f4533c5a67d]
     #12 smbd(+0x31306a) [0x7f4533c5c06a]
     #13 smbd(process_complete_pdu+0x102b) [0x7f4533c5e25b]
     #14 smbd(process_incoming_data+0x12b) [0x7f4533c5e94b]
     #15 smbd(np_write_send+0x14e) [0x7f4533c5f02e]
     #16 smbd(reply_pipe_write_and_X+0x167) [0x7f4533a73967]
     #17 smbd(reply_write_and_X+0x368) [0x7f4533a7d308]
     #18 smbd(+0x176fa4) [0x7f4533abffa4]
     #19 smbd(+0x1773bb) [0x7f4533ac03bb]
     #20 smbd(+0x1777d3) [0x7f4533ac07d3]
     #21 smbd(run_events_poll+0x34e) [0x7f4533d718ae]
     #22 smbd(smbd_process+0x812) [0x7f4533ac1f42]
     #23 smbd(+0x68666f) [0x7f4533fcf66f]
     #24 smbd(run_events_poll+0x34e) [0x7f4533d718ae]
     #25 smbd(+0x428a4a) [0x7f4533d71a4a]
     #26 smbd(_tevent_loop_once+0x90) [0x7f4533d725d0]
     #27 smbd(main+0xed0) [0x7f4533a40030]
     #28 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x7f45308ed76d]
     #29 smbd(+0xf7515) [0x7f4533a40515]

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