audit.50 kernel

[David Woodhouse]

On Thu, 2005-05-26 at 11:11 -0500, Timothy R. Chavez wrote:
> I'm fine with the hash table piece.  It will require more testing, yes.  However,
> I'd just like to get the i_audit implementation to a state where Steve can run
> it and not crash ;-)... ya know, make sure I address those bugs first and
> not allow them to burrow deeper.

OK, let's just do it then. I've asked Steve to try my debugging patch
because I can't reproduce the problem myself -- I get other memory
corruption which might in fact turn out to be related. Once I enable
CONFIG_DEBUG_SLAB I start to see problems when _all_ I do is add one
watch...

passion /root # auditctl -w /var/run/dbus/system_bus_socket -k dbus-test -p rwea
audit(1117124301.017:2): auid=4294967295 inserted watch

slab error in cache_free_debugcheck(): cache `size-32': double free, or memory outside object was overwritten
 [<c014503a>] cache_free_debugcheck+0xc7/0x1b1
 [<c0145b47>] kfree+0x4f/0x83
 [<c013cd37>] audit_receive_watch+0x3c3/0x3ec
 [<c0132f90>] kthread_create+0xed/0xf8
 [<c011c2d6>] recalc_task_prio+0x128/0x133
 [<c011c7f6>] try_to_wake_up+0x225/0x230
 [<c013a4ee>] audit_receive_msg+0x2b1/0x30b
 [<c0143fe4>] check_poison_obj+0x28/0x177
 [<c013a57a>] audit_receive_skb+0x32/0x70
 [<c013a5e1>] audit_receive+0x29/0x80
 [<c02886d7>] netlink_data_ready+0x14/0x44
 [<c0287d9b>] netlink_sendskb+0x52/0x6c
 [<c02884f2>] netlink_sendmsg+0x269/0x278
 [<c026e459>] sock_sendmsg+0xdb/0xf7
 [<c0141060>] buffered_rmqueue+0x17d/0x1a5
 [<c011f6ee>] autoremove_wake_function+0x0/0x2d
 [<c026f723>] sys_sendto+0xc7/0xe2
 [<c011a65b>] do_page_fault+0x1ae/0x5b6
 [<c01a1c17>] avc_has_perm_noaudit+0x2d/0xda
 [<c026e1a6>] sock_map_file+0x98/0x107
 [<c014cc71>] __vma_link+0x59/0x66
 [<c014ccc2>] vma_link+0x44/0xbc
 [<c026ff3a>] sys_socketcall+0x16a/0x1fb
 [<c02c9f3b>] syscall_call+0x7/0xb
e9c168dc: redzone 1: 0x170fc2a5, redzone 2: 0x170fc200.
No rules
AUDIT_WATCH_LIST: dev=3:1, path=/var/run/dbus/system_bus_socket, filterkey=dbus-test, perms=rwea, valid=0
passion /root #



-- 
dwmw2