Re: 2.6.3-rc1-mm1 (SELinux + ext3 + nfsd oops)

[Chris PeBenito]

I got an oops on boot when nfsd is starting up on a SELinux+ext3
machine.  It exports /home, which is mounted thusly:

/dev/sda1 on /home type ext3 (rw,nosuid,nodev,noatime,data=journal,errors=remount-ro)

Oops: 0002 [#1]
CPU:    0
EIP:    0060:[<c017fcab>]    Not tainted
EFLAGS: 00010282
EIP is at ext3_xattr_get+0x2b/0x200
eax: ffffffd4   ebx: 00000000   ecx: ffffffea   edx: c02c0af1
esi: c02c0af2   edi: c02ad415   ebp: ffffffd4   esp: ca59bb50
ds: 007b   es: 007b   ss: 0068
Process nfsd (pid: 1435, threadinfo=ca59a000 task=ca59d8e0)
Stack: 00000007 00100000 00000206 ffffff74 ca59bbc8 cbfe5ba0 c01469c9 c02f492c
       c02c0af2 c02ad415 ca59bbd0 c01817ba 00000000 00000006 c02c0af1 cbcef6e0
       000000ff c03921f4 00000005 c017fa65 00000000 c02c0af1 cbcef6e0 000000ff
Call Trace:
 [<c01469c9>] wake_up_buffer+0x9/0x20
 [<c01817ba>] ext3_xattr_security_get+0x3a/0x60
 [<c017fa65>] ext3_getxattr+0x45/0xc0
 [<c01af1e6>] inode_doinit_with_dentry+0x2e6/0x540
 [<c0159c03>] d_splice_alias+0x63/0xc0
 [<c017a96f>] ext3_lookup+0x6f/0xa0
 [<c0151d2a>] __lookup_hash+0x6a/0xa0
 [<c0151d6f>] lookup_hash+0xf/0x20
 [<c0151dd8>] lookup_one_len+0x58/0x80
 [<c0190260>] find_exported_dentry+0x460/0x580
 [<c01b2c14>] selinux_ip_postroute_last+0x1b4/0x200
 [<c01f715a>] boomerang_start_xmit+0x11a/0x2e0
 [<c024fa11>] qdisc_restart+0x11/0xe0
 [<c0246437>] dev_queue_xmit+0x157/0x1e0
 [<c025ae2c>] ip_finish_output2+0x8c/0x180
 [<c024f020>] nf_hook_slow+0xa0/0x100
 [<c0242303>] __kfree_skb+0x63/0xe0
 [<c02466b5>] net_tx_action+0x35/0xc0


-- 
Chris PeBenito
<pebenito@xxxxxxxxxx>
Developer,
Hardened Gentoo Linux
Embedded Gentoo Linux
 
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