kernel_optimize_test/net/xfrm
Florian Westphal 88584c30e3 xfrm: policy: fix policy hash rebuild
Dan Carpenter reports following static checker warning:
 net/xfrm/xfrm_policy.c:1316 xfrm_hash_rebuild()
 warn: 'dir' is out of bounds '3' vs '2'

 |  1280          /* reset the bydst and inexact table in all directions */
 |  1281          xfrm_hash_reset_inexact_table(net);
 |  1282
 |  1283          for (dir = 0; dir < XFRM_POLICY_MAX; dir++) {
 |                              ^^^^^^^^^^^^^^^^^^^^^
 |dir == XFRM_POLICY_MAX at the end of this loop.
 |  1304          /* re-insert all policies by order of creation */
 |  1305          list_for_each_entry_reverse(policy, &net->xfrm.policy_all, walk.all) {
 [..]
 |  1314                                            xfrm_policy_id2dir(policy->index));
 |  1315                  if (!chain) {
 |  1316                          void *p = xfrm_policy_inexact_insert(policy, dir, 0);

Fix this by updating 'dir' based on current policy.  Otherwise, the
inexact policies won't be found anymore during lookup, as they get
hashed to a bogus bin.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: cc1bb845ad ("xfrm: policy: return NULL when inexact search needed")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2018-11-28 07:05:48 +01:00
..
Kconfig ixgbe/ixgbevf: fix XFRM_ALGO dependency 2018-10-31 10:53:15 -07:00
Makefile xfrm: Add virtual xfrm interfaces 2018-06-23 16:07:25 +02:00
xfrm_algo.c
xfrm_device.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2018-10-01 22:31:17 -07:00
xfrm_hash.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
xfrm_hash.h xfrm: use complete IPv6 addresses for hash 2018-10-15 10:09:18 +02:00
xfrm_input.c xfrm: use correct size to initialise sp->ovec 2018-10-08 08:15:55 +02:00
xfrm_interface.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-19 11:03:06 -07:00
xfrm_ipcomp.c
xfrm_output.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-03 21:00:17 -07:00
xfrm_policy.c xfrm: policy: fix policy hash rebuild 2018-11-28 07:05:48 +01:00
xfrm_proc.c
xfrm_replay.c
xfrm_state.c compat: Cleanup in_compat_syscall() callers 2018-11-01 13:02:21 +01:00
xfrm_sysctl.c
xfrm_user.c compat: Cleanup in_compat_syscall() callers 2018-11-01 13:02:21 +01:00