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| author | Jakub Kicinski <kuba@kernel.org> | 2025-09-23 17:01:08 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-23 17:01:09 -0700 |
| commit | 0efdfbba2e59626b9e924efba2a50b36d14bc276 (patch) | |
| tree | 0fcb834a1bdb1a09fd0c623728023f8133eebe61 /net | |
| parent | ca9f9cdc4de97d0221100b11224738416696163c (diff) | |
| parent | 00af023d90f9087ed5a371302ab442ed5736c3b7 (diff) | |
Merge branch 'nexthop-various-fixes'
Ido Schimmel says:
====================
nexthop: Various fixes
Patch #1 fixes a NPD that was recently reported by syzbot.
Patch #2 fixes an issue in the existing FIB nexthop selftest.
Patch #3 extends the selftest with test cases for the bug that was fixed
in the first patch.
====================
Link: https://patch.msgid.link/20250921150824.149157-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/nexthop.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 29118c43ebf5..34137768e7f9 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -2399,6 +2399,13 @@ static int replace_nexthop_single(struct net *net, struct nexthop *old, return -EINVAL; } + if (!list_empty(&old->grp_list) && + rtnl_dereference(new->nh_info)->fdb_nh != + rtnl_dereference(old->nh_info)->fdb_nh) { + NL_SET_ERR_MSG(extack, "Cannot change nexthop FDB status while in a group"); + return -EINVAL; + } + err = call_nexthop_notifiers(net, NEXTHOP_EVENT_REPLACE, new, extack); if (err) return err; |