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| author | Jiayuan Chen <jiayuan.chen@linux.dev> | 2026-04-13 14:45:20 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2026-04-16 14:48:30 +0300 |
| commit | 104f082f5ed6d19c5d85ca905ccd4e4d01aef66e (patch) | |
| tree | 26dcbf0472ec884e9b8a53c597bb1086002190ff /scripts/mod | |
| parent | 29c95185ba32b621fbc3800fb86e7dc3edf5c2be (diff) | |
| download | linux-104f082f5ed6d19c5d85ca905ccd4e4d01aef66e.tar.xz | |
selftests: fib_nexthops: test stale has_v4 on nexthop replace
Add test cases that exercise the scenario where an IPv6 nexthop is
replaced with an IPv4 nexthop while being part of a group. The group's
has_v4 flag must be updated so that subsequent IPv6 route additions are
properly rejected.
Two cases are covered:
1. Gateway nexthop replaced across families with an existing IPv6
route on the group (rejected by fib6_check_nh_list).
2. Blackhole nexthop replaced across families with no existing IPv6
route on the group (fib6_check_nh_list returns early) — this is
the path that triggers a NULL ptr deref without the kernel fix.
Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20260413114522.147784-2-jiayuan.chen@linux.dev
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'scripts/mod')
0 files changed, 0 insertions, 0 deletions