Mateusz Guzik 1f55176763 ipc: fix compat msgrcv with negative msgtyp ...

commit e7ca255236 upstream.

Compat function takes msgtyp argument as u32 and passes it down to
do_msgrcv which results in casting to long, thus the sign is lost and we
get a big positive number instead.

Cast the argument to signed type before passing it down.

Signed-off-by: Mateusz Guzik <mguzik@redhat.com>
Reported-by: Gabriellla Schmidt <gsc@bruker.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2015-04-19 10:10:50 +02:00

..

compat_mq.c

ipc: initialize structure memory to zero for compat functions

2010-10-27 18:03:13 -07:00

compat.c

ipc: fix compat msgrcv with negative msgtyp

2015-04-19 10:10:50 +02:00

ipc_sysctl.c

ipc: always handle a new value of auto_msgmni

2014-11-21 09:22:54 -08:00

ipcns_notifier.c

ipc: do not use a negative value to re-enable msgmni automatic recomputing

2008-07-25 10:53:42 -07:00

Makefile

Add generic sys_ipc wrapper

2010-03-12 15:52:32 -08:00

mq_sysctl.c

ipc,mqueue: remove limits for the amount of system-wide queues

2014-03-06 21:30:12 -08:00

mqueue.c

ipc,mqueue: remove limits for the amount of system-wide queues

2014-03-06 21:30:12 -08:00

msg.c

ipc: Fix 2 bugs in msgrcv() MSG_COPY implementation

2014-03-23 21:38:17 -07:00

msgutil.c

ipc, msg: fix message length check for negative values

2013-12-04 10:56:10 -08:00

namespace.c

ipc: drop ipc_lock_by_ptr

2013-10-18 07:45:48 -07:00

sem.c

ipc/sem.c: synchronize semop and semctl with IPC_RMID

2013-12-04 10:56:12 -08:00

shm.c

ipc,shm: fix shm_file deletion races

2013-11-29 11:11:41 -08:00

syscall.c

get rid of union semop in sys_semctl(2) arguments

2013-03-05 15:14:16 -05:00

util.c

ipc: update locking scheme comments

2013-12-04 10:56:12 -08:00

util.h

ipc, msg: fix message length check for negative values

2013-12-04 10:56:10 -08:00