[ip] 681da5bff0: kernel-selftests.net.icmp_redirect.sh.Legacy_routing.IPv4_redirect_exception.fail

Greeting,

FYI, we noticed the following commit (built with gcc-11):

commit: 681da5bff05fbbbba7bf15c0004a371cb57f2de9 ("ip: fix dflt addr selection for connected nexthop")
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable-rc.git queue/5.18

in testcase: kernel-selftests
version: kernel-selftests-x86_64-37f3cb9b-1_20220704
with following parameters:

	group: net
	ucode: 0xf0

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt


on test machine: 8 threads Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz with 28G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):

If you fix the issue, kindly add following tag
Reported-by: kernel test robot <redacted>


# selftests: net: icmp_redirect.sh
#
# ###########################################################################
# Legacy routing
# ###########################################################################
#
# TEST: IPv4: redirect exception                                      [FAIL]
# TEST: IPv6: redirect exception                                      [ OK ]
# TEST: IPv4: redirect exception plus mtu                             [FAIL]
# TEST: IPv6: redirect exception plus mtu                             [ OK ]
# TEST: IPv4: routing reset                                           [ OK ]
# TEST: IPv6: routing reset                                           [ OK ]
# TEST: IPv4: mtu exception                                           [ OK ]
# TEST: IPv6: mtu exception                                           [ OK ]
# TEST: IPv4: mtu exception plus redirect                             [FAIL]
# TEST: IPv6: mtu exception plus redirect                             [ OK ]
#
# ###########################################################################
# Legacy routing with VRF
# ###########################################################################
#
# TEST: IPv4: redirect exception                                      [FAIL]
# TEST: IPv6: redirect exception                                      [ OK ]
# TEST: IPv4: redirect exception plus mtu                             [FAIL]
# TEST: IPv6: redirect exception plus mtu                             [ OK ]
# TEST: IPv4: routing reset                                           [ OK ]
# TEST: IPv6: routing reset                                           [ OK ]
# TEST: IPv4: mtu exception                                           [ OK ]
# TEST: IPv6: mtu exception                                           [ OK ]
# TEST: IPv4: mtu exception plus redirect                             [FAIL]
# TEST: IPv6: mtu exception plus redirect                             [ OK ]
#
# ###########################################################################
# Routing with nexthop objects
# ###########################################################################
#
# TEST: IPv4: redirect exception                                      [FAIL]
# TEST: IPv6: redirect exception                                      [ OK ]
# TEST: IPv4: redirect exception plus mtu                             [FAIL]
# TEST: IPv6: redirect exception plus mtu                             [ OK ]
# TEST: IPv4: routing reset                                           [ OK ]
# TEST: IPv6: routing reset                                           [ OK ]
# TEST: IPv4: mtu exception                                           [ OK ]
# TEST: IPv6: mtu exception                                           [ OK ]
# TEST: IPv4: mtu exception plus redirect                             [FAIL]
# TEST: IPv6: mtu exception plus redirect                             [ OK ]
#
# ###########################################################################
# Routing with nexthop objects and VRF
# ###########################################################################
#
# TEST: IPv4: redirect exception                                      [FAIL]
# TEST: IPv6: redirect exception                                      [ OK ]
# TEST: IPv4: redirect exception plus mtu                             [FAIL]
# TEST: IPv6: redirect exception plus mtu                             [ OK ]
# TEST: IPv4: routing reset                                           [ OK ]
# TEST: IPv6: routing reset                                           [ OK ]
# TEST: IPv4: mtu exception                                           [ OK ]
# TEST: IPv6: mtu exception                                           [ OK ]
# TEST: IPv4: mtu exception plus redirect                             [FAIL]
# TEST: IPv6: mtu exception plus redirect                             [ OK ]
#
# Tests passed:  28
# Tests failed:  12
# Tests xfailed:   0
not ok 36 selftests: net: icmp_redirect.sh # exit=1


To reproduce:

         git clone https://github.com/intel/lkp-tests.git
         cd lkp-tests
         sudo bin/lkp install job.yaml           # job file is attached in this email
         bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
         sudo bin/lkp run generated-yaml-file

         # if come across any failure that blocks the test,
         # please remove ~/.lkp and /lkp dir to run from a clean state.

-- 
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