mirror of
https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
synced 2026-11-08 11:45:53 -05:00
| Filename | Latest commit message | Latest commit date |
|---|---|---|
27df6f25ff
Vegard Nossum reported ---------------------- > I noticed that something weird is going on with /proc/sys/sunrpc/transports. > This file is generated in net/sunrpc/sysctl.c, function proc_do_xprt(). When > I "cat" this file, I get the expected output: > $ cat /proc/sys/sunrpc/transports > tcp 1048576 > udp 32768 > But I think that it does not check the length of the buffer supplied by > userspace to read(). With my original program, I found that the stack was > being overwritten by the characters above, even when the length given to > read() was just 1. David Wagner added (among other things) that copy_to_user could be probably used here. Ingo Oeser suggested to use simple_read_from_buffer() here. The conclusion is that proc_do_xprt doesn't check for userside buffer size indeed so fix this by using Ingo's suggestion. Reported-by: Vegard Nossum <[email protected]> Signed-off-by: Cyrill Gorcunov <[email protected]> CC: Ingo Oeser <[email protected]> Cc: Neil Brown <[email protected]> Cc: Chuck Lever <[email protected]> Cc: Greg Banks <[email protected]> Cc: Tom Tucker <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> |
||
| .. | ||
| auth_gss | ||
| xprtrdma | ||
| auth.c | ||
| auth_generic.c | ||
| auth_null.c | ||
| auth_unix.c | ||
| cache.c | ||
| clnt.c | ||
| Makefile | ||
| rpc_pipe.c | ||
| rpcb_clnt.c | ||
| sched.c | ||
| socklib.c | ||
| stats.c | ||
| sunrpc_syms.c | ||
| svc.c | ||
| svc_xprt.c | ||
| svcauth.c | ||
| svcauth_unix.c | ||
| svcsock.c | ||
| sysctl.c | ||
| timer.c | ||
| xdr.c | ||
| xprt.c | ||
| xprtsock.c | ||