linux/net/bluetooth
Waiman Long 453431a549 mm, treewide: rename kzfree() to kfree_sensitive()
As said by Linus:

  A symmetric naming is only helpful if it implies symmetries in use.
  Otherwise it's actively misleading.

  In "kzalloc()", the z is meaningful and an important part of what the
  caller wants.

  In "kzfree()", the z is actively detrimental, because maybe in the
  future we really _might_ want to use that "memfill(0xdeadbeef)" or
  something. The "zero" part of the interface isn't even _relevant_.

The main reason that kzfree() exists is to clear sensitive information
that should not be leaked to other future users of the same memory
objects.

Rename kzfree() to kfree_sensitive() to follow the example of the recently
added kvfree_sensitive() and make the intention of the API more explicit.
In addition, memzero_explicit() is used to clear the memory to make sure
that it won't get optimized away by the compiler.

The renaming is done by using the command sequence:

  git grep -w --name-only kzfree |\
  xargs sed -i 's/kzfree/kfree_sensitive/'

followed by some editing of the kfree_sensitive() kerneldoc and adding
a kzfree backward compatibility macro in slab.h.

[akpm@linux-foundation.org: fs/crypto/inline_crypt.c needs linux/slab.h]
[akpm@linux-foundation.org: fix fs/crypto/inline_crypt.c some more]

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Joe Perches <joe@perches.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: "Jason A . Donenfeld" <Jason@zx2c4.com>
Link: http://lkml.kernel.org/r/20200616154311.12314-3-longman@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-07 11:33:22 -07:00
..
bnep net: make ->{get,set}sockopt in proto_ops optional 2020-07-19 18:16:41 -07:00
cmtp net: make ->{get,set}sockopt in proto_ops optional 2020-07-19 18:16:41 -07:00
hidp net: make ->{get,set}sockopt in proto_ops optional 2020-07-19 18:16:41 -07:00
rfcomm Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2020-07-31 15:11:52 -07:00
6lowpan.c Bluetooth: add a mutex lock to avoid UAF in do_enale_set 2020-06-23 14:30:07 +02:00
a2mp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
a2mp.h Bluetooth: Replace zero-length array with flexible-array member 2020-02-28 08:30:02 +01:00
af_bluetooth.c Bluetooth: Add support for BT_PKT_STATUS CMSG data for SCO connections 2020-06-12 15:08:49 +02:00
amp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
amp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
ecdh_helper.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
ecdh_helper.h Bluetooth: let the crypto subsystem generate the ecc privkey 2017-10-06 20:35:47 +02:00
hci_conn.c Bluetooth: Enable/Disable address resolution during le create conn 2020-07-30 09:34:43 +02:00
hci_core.c Bluetooth: Enable RPA Timeout 2020-07-30 09:34:43 +02:00
hci_debugfs.c Bluetooth: debugfs option to unset MITM flag 2020-04-07 18:32:21 +02:00
hci_debugfs.h
hci_event.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
hci_request.c Bluetooth: use the proper scan params when conn is pending 2020-07-31 08:28:23 +02:00
hci_request.h Bluetooth: Enable/Disable address resolution during le create conn 2020-07-30 09:34:43 +02:00
hci_sock.c Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2020-07-31 15:11:52 -07:00
hci_sysfs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
Kconfig Replace HTTP links with HTTPS ones: BLUETOOTH SUBSYSTEM 2020-07-10 19:21:03 +02:00
l2cap_core.c Bluetooth: core: Use fallthrough pseudo-keyword 2020-07-10 19:09:42 +02:00
l2cap_sock.c Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2020-07-31 15:11:52 -07:00
leds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
leds.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lib.c Bluetooth: Introduce debug feature when dynamic debug is disabled 2020-05-11 12:16:27 +02:00
Makefile Bluetooth: implement read/set default system parameters mgmt 2020-06-12 21:41:07 +02:00
mgmt_config.c Bluetooth: Adding a configurable autoconnect timeout 2020-07-07 17:37:03 +02:00
mgmt_config.h Bluetooth: mgmt: Add commands for runtime configuration 2020-06-18 13:11:03 +03:00
mgmt_util.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
mgmt_util.h
mgmt.c Bluetooth: Increment management interface revision 2020-07-31 16:41:09 +03:00
msft.c Bluetooth: Add handler of MGMT_OP_READ_ADV_MONITOR_FEATURES 2020-06-18 13:11:21 +03:00
msft.h Bluetooth: Add handler of MGMT_OP_READ_ADV_MONITOR_FEATURES 2020-06-18 13:11:21 +03:00
sco.c bluetooth: sco: Fix sockptr reference. 2020-07-31 16:15:03 -07:00
selftest.c Bluetooth: Remove CRYPTO_ALG_INTERNAL flag 2020-07-31 16:42:04 +03:00
selftest.h
smp.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
smp.h Bluetooth: SMP: fix crash in unpairing 2018-09-26 12:39:32 +03:00