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linux/ipc
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Davidlohr Bueso 6157dbbfbf ipc,sysv: return -EINVAL upon incorrect id/seqnum 
In ipc_obtain_object_check we return -EIDRM when a bogus sequence number
is detected via ipc_checkid, while the ipc manpages state the following
return codes for such errors:

   EIDRM  <ID> points to a removed identifier.
   EINVAL Invalid <ID> value, or unaligned, etc.

EIDRM should only be returned upon a RMID call (->deleted check), and thus
return EINVAL for wrong seq.  This difference in semantics has also caused
real bugs, ie: https://bugzilla.redhat.com/show_bug.cgi?id=246509

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:44:59 -07:00
..
compat.c
compat_mq.c
ipc_sysctl.c ipc/msg: increase MSGMNI, remove scaling 2014-12-13 12:42:52 -08:00
Makefile ipc/msg: increase MSGMNI, remove scaling 2014-12-13 12:42:52 -08:00
mq_sysctl.c
mqueue.c ipc/mqueue: Implement lockless pipelined wakeups 2015-05-08 12:23:07 +02:00
msg.c ipc: rename ipc_obtain_object 2015-06-30 19:44:58 -07:00
msgutil.c
namespace.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-12-16 15:53:03 -08:00
sem.c ipc: rename ipc_obtain_object 2015-06-30 19:44:58 -07:00
shm.c ipc: rename ipc_obtain_object 2015-06-30 19:44:58 -07:00
syscall.c
util.c ipc,sysv: return -EINVAL upon incorrect id/seqnum 2015-06-30 19:44:59 -07:00
util.h ipc: rename ipc_obtain_object 2015-06-30 19:44:58 -07:00