linux-sg2042/net/llc
Mathias Krause 3592aaeb80 llc: fix info leak via getsockname()
The LLC code wrongly returns 0, i.e. "success", when the socket is
zapped. Together with the uninitialized uaddrlen pointer argument from
sys_getsockname this leads to an arbitrary memory leak of up to 128
bytes kernel stack via the getsockname() syscall.

Return an error instead when the socket is zapped to prevent the info
leak. Also remove the unnecessary memset(0). We don't directly write to
the memory pointed by uaddr but memcpy() a local structure at the end of
the function that is properly initialized.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-15 21:36:31 -07:00
..
Kconfig
Makefile
af_llc.c llc: fix info leak via getsockname() 2012-08-15 21:36:31 -07:00
llc_c_ac.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
llc_c_ev.c net: replace remaining __FUNCTION__ occurrences 2008-03-05 20:47:47 -08:00
llc_c_st.c
llc_conn.c net: add a limit parameter to sk_add_backlog() 2012-04-23 22:28:28 -04:00
llc_core.c llc: cleanup: remove dead code from llc_init() 2010-03-24 13:34:08 -07:00
llc_if.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
llc_input.c llc: Fix races between llc2 handler use and (un)registration 2012-08-14 16:52:02 -07:00
llc_output.c net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
llc_pdu.c [LLC]: skb allocation size for responses 2008-03-31 21:02:47 -07:00
llc_proc.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
llc_s_ac.c [LLC]: skb allocation size for responses 2008-03-31 21:02:47 -07:00
llc_s_ev.c
llc_s_st.c [NET] LLC: Fix whitespace errors. 2007-02-10 23:19:53 -08:00
llc_sap.c net: delete all instances of special processing for token ring 2012-05-15 20:14:35 -04:00
llc_station.c llc: Fix races between llc2 handler use and (un)registration 2012-08-14 16:52:02 -07:00
sysctl_net_llc.c net llc: Don't use sysctl tables with .child entries. 2012-04-20 21:22:29 -04:00