From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 932691A9FAF for ; Sat, 28 Feb 2026 07:34:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772264074; cv=none; b=dtsNyTyaItnJaq8TzVjRUCn+N06SvDQ8ZVwnIWEayVPE0KAy0CW8dGVAPjQGiUrBPDz3qnVmj8lNM2XVU+3wFPVceZ8NQgTxDXiiPRrzuFFNbEkRCssT6sAgDMHJulP6y6hmdfUfUUZj9qjwYlHs1GH/Q6TfjKe9qdEeuArEglo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772264074; c=relaxed/simple; bh=Mrp4TgoPfSaUTanVGAs0KEesojJezHE2qCPFPcCJPXQ=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=mavgM8PEAD2SIUV5818O/iU4wd9+9vUvx0D76myoLO+crq8ScaPYe46DYkYYnmJSMSSc6h7YBH8juDxYeu+q3FVVniwlZ3ua+fKmg//x6/yMkVIQJLg/SX6NCvupKZ+6MYEGXE3U+8Gncm5UcNlH2So9T6EqbI5OtzJHDGetk+s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f72.google.com with SMTP id 006d021491bc7-679c29b437cso25021262eaf.2 for ; Fri, 27 Feb 2026 23:34:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772264071; x=1772868871; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=R27OMY8NQ/84Gwe4R5rhN9Q+86t/niigV0jo5326yEk=; b=vGrhgO86DwTsn02w+6DAdGQkmyw7yV9Lw7bbEmzHKbjE6dVYuNfZc9SDmII4K7uZNR 2+FI0v3tGOI6JL0DSheOm5MPLIaYSo3/CxQM/JkWHlr/2jx3xOsg7F08rbtjGnymRrKp heyU1XGZjqnmSglXWTWqqa77FsUZECyDI8lavPUIcpSKv1uFRQBcsHu+q2C5BIZnqBhw 9We5W7k6Uw5d9lKwKMzo62WPHMSEJNgm4cSiRk39JXa8Afma9G76mgXKyFuFCi2sAAoz 5rMiiR+m+esMmaAlVxG9cW8GFftzBipnEEWnrMB3MTsED1wu2xd8t15wuMhL8FWSISmt g5TA== X-Forwarded-Encrypted: i=1; AJvYcCX+kw0z012J1ApjD3DP86mnbq7jgk6XqaM/fzsmuVHGktTajAaHsBdcQD5c11j4gWSJjuj7QKfMzRCS@vger.kernel.org X-Gm-Message-State: AOJu0Yw6rtgRhh4Y1V8Q+l6Iysxez0lsxps9UxQe6pU0YZU7NQDIoetu 5c9hgPLGH5T7rIKd6d0+9/hv6dedj7+BxFzR11o+CyGIZSXgDS0nxThxhZyh9JwKf9mFSgarmPr ZFOGyGlVPm8RI1iHXXuIUk6z/Zdes1ahIfuNKPVX0pn5HF/oD/Mc+sbaoFS0= Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:4dce:b0:676:96fa:299e with SMTP id 006d021491bc7-679fadf3c00mr3521374eaf.27.1772264071693; Fri, 27 Feb 2026 23:34:31 -0800 (PST) Date: Fri, 27 Feb 2026 23:34:31 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69a29a87.050a0220.3a55be.0033.GAE@google.com> Subject: [syzbot] [rdma?] kernel BUG in ib_device_get_by_netdev From: syzbot To: jgg@ziepe.ca, leon@kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 779cae956c83 Add linux-next specific files for 20260223 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=13be455a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=a3fcc8cba4273681 dashboard link: https://syzkaller.appspot.com/bug?extid=d4b5f56fae098a9ff611 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/8e60025d7912/disk-779cae95.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a9dd1cf82d19/vmlinux-779cae95.xz kernel image: https://storage.googleapis.com/syzbot-assets/3c0e344b536d/bzImage-779cae95.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d4b5f56fae098a9ff611@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at ./include/rdma/ib_verbs.h:4611! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 7532 Comm: syz.1.433 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:ib_device_try_get include/rdma/ib_verbs.h:4611 [inline] RIP: 0010:ib_device_get_by_netdev+0x529/0x530 drivers/infiniband/core/device.c:2356 Code: 28 f9 48 8b 44 24 38 42 80 3c 30 00 74 08 4c 89 e7 e8 1b ad 92 f9 4d 8b 3c 24 e9 fd fe ff ff e8 2d e4 10 03 e8 28 85 28 f9 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000493e640 EFLAGS: 00010283 RAX: ffffffff889d0d38 RBX: ffff88806d3e5104 RCX: 0000000000080000 RDX: ffffc9000d311000 RSI: 0000000000031136 RDI: 0000000000031137 RBP: ffffc9000493e720 R08: ffffffff889d0891 R09: ffffffff8e7602e0 R10: dffffc0000000000 R11: ffffffff88c6ab20 R12: ffff88807d7251b8 R13: ffff88806d3e4000 R14: dffffc0000000000 R15: 1ffff92000927cd0 FS: 00007fdd927f66c0(0000) GS:ffff88812555e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055558fbca4e8 CR3: 00000000796b6000 CR4: 00000000003526f0 Call Trace: siw_netdev_event+0x4c/0x170 drivers/infiniband/sw/siw/siw_main.c:374 notifier_call_chain+0x1be/0x400 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2288 [inline] call_netdevice_notifiers net/core/dev.c:2302 [inline] netdev_features_change net/core/dev.c:1590 [inline] netdev_change_features net/core/dev.c:11097 [inline] netdev_compute_master_upper_features+0x91e/0xac0 net/core/dev.c:12869 bond_enslave+0x21cc/0x3c40 drivers/net/bonding/bond_main.c:2226 do_set_master+0x533/0x6d0 net/core/rtnetlink.c:2963 do_setlink+0x1018/0x4590 net/core/rtnetlink.c:3165 rtnl_changelink net/core/rtnetlink.c:3776 [inline] __rtnl_newlink net/core/rtnetlink.c:3935 [inline] rtnl_newlink+0x15a9/0x1be0 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6958 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec+0x18f/0x1d0 net/socket.c:737 __sock_sendmsg net/socket.c:752 [inline] ____sys_sendmsg+0x589/0x8c0 net/socket.c:2610 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2664 __sys_sendmsg net/socket.c:2696 [inline] __do_sys_sendmsg net/socket.c:2701 [inline] __se_sys_sendmsg net/socket.c:2699 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2699 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdd9459c629 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdd927f6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fdd94815fa0 RCX: 00007fdd9459c629 RDX: 0000000000000010 RSI: 0000200000000600 RDI: 0000000000000004 RBP: 00007fdd94632b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fdd94816038 R14: 00007fdd94815fa0 R15: 00007ffc8f7a8198 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ib_device_try_get include/rdma/ib_verbs.h:4611 [inline] RIP: 0010:ib_device_get_by_netdev+0x529/0x530 drivers/infiniband/core/device.c:2356 Code: 28 f9 48 8b 44 24 38 42 80 3c 30 00 74 08 4c 89 e7 e8 1b ad 92 f9 4d 8b 3c 24 e9 fd fe ff ff e8 2d e4 10 03 e8 28 85 28 f9 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000493e640 EFLAGS: 00010283 RAX: ffffffff889d0d38 RBX: ffff88806d3e5104 RCX: 0000000000080000 RDX: ffffc9000d311000 RSI: 0000000000031136 RDI: 0000000000031137 RBP: ffffc9000493e720 R08: ffffffff889d0891 R09: ffffffff8e7602e0 R10: dffffc0000000000 R11: ffffffff88c6ab20 R12: ffff88807d7251b8 R13: ffff88806d3e4000 R14: dffffc0000000000 R15: 1ffff92000927cd0 FS: 00007fdd927f66c0(0000) GS:ffff88812545e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8d20bc3484 CR3: 00000000796b6000 CR4: 00000000003526f0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup