[Bug 216358] [NEW] Samba crashes repeatedly to assert_uid

[Zds]

Public bug reported:

Binary package hint: samba

My Samba has been working fine for years now, month or two of that on
Hardy binaries and out of sudden it started to crash. It has now crashed
six times in 20 minutes with following stack dump:

[Thread debugging using libthread_db enabled]
[New Thread 0xb7af76d0 (LWP 7307)]
0xffffe410 in __kernel_vsyscall ()
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7c133c3 in waitpid () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7bb6533 in ?? () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7d7ed7d in system () from /lib/tls/i686/cmov/libpthread.so.0
#4  0x0828aab8 in smb_panic (why=0x83bee31 "failed to set uid\n")
    at lib/util.c:1639
#5  0x08290cee in assert_uid (ruid=4294967295, euid=65534)
    at lib/util_sec.c:102
#6  0x080ffe9c in become_id (uid=65534, gid=65534) at smbd/sec_ctx.c:57
#7  0x08100245 in set_sec_ctx (uid=65534, gid=65534, ngroups=0, groups=0x0, 
    token=0x850fe68) at smbd/sec_ctx.c:280
#8  0x080f3f38 in change_to_user (conn=0x851eac8, vuid=101) at smbd/uid.c:259
#9  0x08113221 in make_connection_snum (snum=6, vuser=0x851d818, password=
      {data = 0x84f9970 "", length = 1, free = 0x8287760 <free_data_blob>}, 
    pdev=0xbfc79058 "?????", status=0xbfc792e8) at smbd/service.c:926
#10 0x08114bf7 in make_connection (service_in=0xbfc797ec "IPC$", password=
      {data = 0x84f9970 "", length = 1, free = 0x8287760 <free_data_blob>}, 
    pdev=0xbfc796ec "?????", vuid=101, status=0xbfc792e8)
    at smbd/service.c:1207
#11 0x080d5657 in reply_tcon_and_X (conn=0x0, inbuf=0x85233f8 "", 
    outbuf=0x8543840 "", length=80, bufsize=131072) at smbd/reply.c:508
#12 0x0810f89e in switch_message (type=117, inbuf=0x85233f8 "", 
    outbuf=0x8543840 "", size=80, bufsize=131072) at smbd/process.c:1003
#13 0x08110cfb in smbd_process () at smbd/process.c:1030
#14 0x0835e8f8 in main (argc=-1212455959, argv=0xbfc79d54)
    at smbd/server.c:1120
The program is running.  Quit anyway (and detach it)? (y or n) [answered Y; input not from terminal]

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New

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Samba crashes repeatedly to assert_uid
https://bugs.launchpad.net/bugs/216358
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