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Tue, 10 Mar 2026 10:02:09 -0700 (PDT) Date: Tue, 10 Mar 2026 10:02:09 -0700 In-Reply-To: <20260310-offload_compute-v1-0-3df79c09ea65@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69b04e91.a70a0220.51e36.0000.GAE@google.com> Subject: [syzbot ci] Re: net: move netdev_compute_master_upper_features to ndo_set_features From: syzbot ci To: andrew@lunn.ch, bridge@lists.linux.dev, davem@davemloft.net, edumazet@google.com, horms@kernel.org, idosch@nvidia.com, jiri@resnulli.us, jv@jvosburgh.net, kuba@kernel.org, linux-kernel@vger.kernel.org, liuhangbin@gmail.com, netdev@vger.kernel.org, pabeni@redhat.com, razor@blackwall.org, sridhar.samudrala@intel.com Cc: syzbot@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot ci has tested the following series [v1] net: move netdev_compute_master_upper_features to ndo_set_features https://lore.kernel.org/all/20260310-offload_compute-v1-0-3df79c09ea65@gmail.com * [PATCH net-next 1/3] net: use ndo_set_features to set offload features for bonding/bridge/team * [PATCH net-next 2/3] failover: use ndo_set_features for failover offload compute * [PATCH net-next 3/3] net: no need to disable LRO specifically and found the following issue: WARNING in rtmsg_ifinfo_build_skb Full report is available here: https://ci.syzbot.org/series/d5001c4a-a51e-49c1-9106-624836e43ec2 *** WARNING in rtmsg_ifinfo_build_skb tree: net-next URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/netdev/net-next.git base: 52ede1bce557c66309f41ac29dd190be23ca9129 arch: amd64 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 config: https://ci.syzbot.org/builds/281e7e02-f6af-4b4a-845e-d1d5842a9301/config batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active hsr_slave_0: entered promiscuous mode hsr_slave_1: entered promiscuous mode ------------[ cut here ]------------ err == -EMSGSIZE WARNING: net/core/rtnetlink.c:4421 at rtmsg_ifinfo_build_skb+0x218/0x260, CPU#0: syz-executor/6496 Modules linked in: CPU: 0 UID: 0 PID: 6496 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:rtmsg_ifinfo_build_skb+0x218/0x260 Code: f6 ba 01 00 00 00 89 e9 e8 25 15 3a 00 4c 89 f0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d e9 7f 3a 2e 02 cc e8 49 3b 42 f8 90 <0f> 0b 90 eb 90 89 d9 80 e1 07 fe c1 38 c1 0f 8c 95 fe ff ff 48 89 RSP: 0018:ffffc9000637e9a0 EFLAGS: 00010293 RAX: ffffffff89835e27 RBX: 0000000000000000 RCX: ffff8881b80a57c0 RDX: 0000000000000000 RSI: 00000000ffffffa6 RDI: 00000000ffffffa6 RBP: 00000000ffffffa6 R08: 0000000000000004 R09: 0000000000000004 R10: fffff52000c6fcdc R11: 0000000000000000 R12: 1ffff110235ddc21 R13: 0000000000000000 R14: ffff8881133dc780 R15: ffff88811aeee000 FS: 0000555557c4a500(0000) GS:ffff88818de65000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555e1838c8 CR3: 0000000168b80000 CR4: 00000000000006f0 Call Trace: rtnetlink_event+0x1b7/0x270 notifier_call_chain+0x1be/0x400 netdev_change_features+0x95/0xe0 __netdev_upper_dev_link+0xb20/0xc80 netdev_upper_dev_link+0xb0/0x100 macsec_newlink+0xb11/0x1200 rtnl_newlink_create+0x329/0xb70 rtnl_newlink+0x1666/0x1be0 rtnetlink_rcv_msg+0x7d5/0xbe0 netlink_rcv_skb+0x232/0x4b0 netlink_unicast+0x80f/0x9b0 netlink_sendmsg+0x813/0xb40 __sys_sendto+0x672/0x710 __x64_sys_sendto+0xde/0x100 do_syscall_64+0x14d/0xf80 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ffadf757917 Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007ffd0eb79f80 EFLAGS: 00000202 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000555557c4a500 RCX: 00007ffadf757917 RDX: 0000000000000054 RSI: 00007ffae0544670 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00007ffd0eb79fe4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 R13: 0000000000000000 R14: 00007ffae0544670 R15: 0000000000000000 *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com.