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From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040510 Galeon/1.3.14 Description of problem: Mounting a share on a win2003k server(and other winxp/win2k machines in an Active Directory domain) oopses the kernel when ExtendedSecurity is on. Version-Release number of selected component (if applicable): kernel-2.6.5-1.358 How reproducible: Always Steps to Reproduce: 1. Turn on ExtendedSecurity echo 1 > /proc/fs/cifs/ExtendedSecurity 2. Mount a share mount -t cifs //grimm/Documents /mnt/Documents/ -o user=xxx,password=yyy Actual Results: Kernel oops: CIFS VFS: cifs_mount failed w/return code = 1 Unable to handle kernel NULL pointer dereference at virtual address 0000003d printing eip: 0214648b *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[<0214648b>] Not tainted EFLAGS: 00010246 (2.6.5-1.358) EIP is at do_kern_mount+0xa9/0x124 eax: 00000000 ebx: 00000000 ecx: 022cfa00 edx: 13946000 esi: 00000001 edi: 21fad980 ebp: 229caf60 esp: 13929f0c ds: 007b es: 007b ss: 0068 Process mount.cifs (pid: 2752, threadinfo=13929000 task=1fcf1430) Stack: 13946000 1390d000 00000040 1fc14000 00000040 1fc14004 13929f5c 021562b0 160db000 00000000 00000040 13929f5c 21fde000 021565af 00000000 1390d000 160db000 00000000 1fc14000 1390d000 1d3eb680 21fadfc0 08f094c0 00001000 Call Trace: [<021562b0>] do_add_mount+0x55/0x145 [<021565af>] do_mount+0x178/0x190 [<0213f3d3>] get_user_size+0x30/0x57 [<0215689a>] sys_mount+0x7b/0xe4 Code: 8b 56 3c 85 d2 74 10 8b 02 85 c0 75 08 0f 0b 17 01 36 22 29 <7>PCI: Setting latency timer of device 0000:00:11.5 to 64 Expected Results: Atleast the kernel not to oops. And preferrably the share to get mounted ;) Additional info: I had this working on RH 8.0 with cifs 1.x I compiled myself. Without the ExtendedSecurity the mount fails with mount error 13 = Permission denied Refer to the mount.cifs(8) manual page (e.g.man mount.cifs) Ethereal shows it's some auth negotiating that fails. Trying with smbfs I only get: cli_negprot: SMB signing is mandatory and we have disabled it. 3117: protocol negotiation failed SMB connection failed
Fedora Core 2 has now reached end of life, and no further updates will be provided by Red Hat. The Fedora legacy project will be producing further kernel updates for security problems only. If this bug has not been fixed in the latest Fedora Core 2 update kernel, please try to reproduce it under Fedora Core 3, and reopen if necessary, changing the product version accordingly. Thank you.