linux/arch/sparc64/solaris
Andrew Morton d64d387372 [NET]: Fix memory leak in sys_{send,recv}msg() w/compat
From: Dave Johnson <djohnson+linux-kernel@sw.starentnetworks.com>

sendmsg()/recvmsg() syscalls from o32/n32 apps to a 64bit kernel will
cause a kernel memory leak if iov_len > UIO_FASTIOV for each syscall!

This is because both sys_sendmsg() and verify_compat_iovec() kmalloc a
new iovec structure.  Only the one from sys_sendmsg() is free'ed.

I wrote a simple test program to confirm this after identifying the
problem:

http://davej.org/programs/testsendmsg.c

Note that the below fix will break solaris_sendmsg()/solaris_recvmsg() as
it also calls verify_compat_iovec() but expects it to malloc internally.

[ I fixed that. -DaveM ]

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-09 15:29:19 -07:00
..
conv.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
entry64.S [SPARC64]: Pass regs and entry/exit boolean to syscall_trace() 2005-07-10 16:55:48 -07:00
fs.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioctl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
misc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
socket.c [NET]: Fix memory leak in sys_{send,recv}msg() w/compat 2005-08-09 15:29:19 -07:00
socksys.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
socksys.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
systbl.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
timod.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00