Modify

Opened 9 years ago

Closed 6 years ago

Last modified 4 years ago

#4727 closed defect (obsolete)

Samba crashes on statfs call

Reported by: rian Owned by: developers
Priority: normal Milestone: Barrier Breaker 14.07
Component: packages Version: Trunk
Keywords: samba smbd statfs smbclient Cc:

Description

Both samba2 and samba3 smbd crash the handling thread when smbclient is used to list the directory contents.

Windows (at least XP) does not cause the thread to crash.

Security settings of smb.conf do not appear to cause any difference in behaviour.

Reproduceable by setting a standard smb share (default samba template causes this behaviour) and connecting with smbclient (V3.3.0 in testing), and typing 'ls'. Contents are returned as shown below

smb: \> ls

. D 0 Tue Mar 3 17:23:24 2009
.. D 0 Tue Mar 3 17:21:49 2009
place.holder A 3 Tue Mar 3 18:51:10 2009

Receiving SMB: Server stopped responding
Error in dskattr: Call returned zero bytes (EOF)
smb: \>

On smbd, strace -p <thread id> ends with

fcntl64(12, F_SETLKW64,
{type=F_UNLCK, whence=SEEK_SET, start=36244, len=1}, 0x7fe45b70) = 0
write(5, "\0\0\0`\377SMB2\0\0\0\0\210A\300\0\0\0\0\0\0\0\0\0\0\0\0\1\0Fj"..., 100) = 100
_newselect(18, [5 17], NULL, NULL, NULL) = 1 (in [5])
read(5, "\0\0\0#", 4) = 4
read(5, "\377SMB\200\0\0\0\0\10\1\320\0\0\0\0\0\0\0\0\0\0\0\0\1\0Fj\0\0\n\0"..., 35) = 35
statfs(".", <unfinished ...>
+++ killed by SIGSEGV +++

Reproduceable. Latest crash dump attached.

Attachments (0)

Change History (3)

comment:1 Changed 9 years ago by rian

Sorry, there is no core produced in /var/log/cores/smb/; thought there was.

comment:2 Changed 6 years ago by nbd

  • Resolution set to obsolete
  • Status changed from new to closed
  • Version set to Trunk

comment:3 Changed 4 years ago by jow

  • Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07

Milestone Attitude Adjustment 12.09 deleted

Add Comment

Modify Ticket

Action
as closed .
The resolution will be deleted. Next status will be 'reopened'.
Author


E-mail address and user name can be saved in the Preferences.

 
Note: See TracTickets for help on using tickets.