From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 64EB8FBF5 for ; Tue, 2 Jan 2024 13:42:30 +0000 (UTC) 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-io1-f71.google.com with SMTP id ca18e2360f4ac-7ba7d8f3b1fso1266338139f.0 for ; Tue, 02 Jan 2024 05:42:30 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704202949; x=1704807749; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=aQf4vuacvd9yifzeZtNC0Acc2lFbtoxn1Tig8dfG3Tk=; b=ThoT1J1iqK0X+I65m8gQPisHu02dzMgCM2fYvaC+bsDvxM2vILKCBP9Fc0ZGwyjc3c ZpoH1LT//u3HKvPdIowAqeCFz8vNawUqRmwIisAVyUuseIFfzU35L9YqQ8usFTRbnHGW frToQ3qwOhxOxHIj1IZR3Xx3IiViM5RbkLj3XMxVvA5HB9rbHNtLVKeQ1D18uacqCEts baKDkMYjvcTtDi9QfjQFegTh9l/u6eq1yKUyuiGGk8BJfg02AbYzd2dfJlGrb51FTVz/ J3wPOdXhKCBcmOzDtcjsHle/6wteWCEaAK3x2Ss7iAVVABElJMIsJ6U47O0II1r6qcsj CWXA== X-Gm-Message-State: AOJu0Yxq2wl3XMsO0izLAF7wNMC1V+Qm3nblOGc/xb1QKZQR0wSM2AG7 BYmUjvegvH4uuqI9RARZlOVTo8XWzSzeTGh5Pfltzy3NsgYp X-Google-Smtp-Source: AGHT+IHpfgO/iWwluzNRvkbtKAz3sm6zOo2s0906NPXXxwsLSCVxGF4/psRoxMHpL/alH0Ub82OEO1hlRj0GXbobHpiK0jqEZ/fH Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b24:b0:35f:f01e:bb1d with SMTP id e4-20020a056e020b2400b0035ff01ebb1dmr1816322ilu.5.1704202949655; Tue, 02 Jan 2024 05:42:29 -0800 (PST) Date: Tue, 02 Jan 2024 05:42:29 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000708723060df6ab96@google.com> Subject: [syzbot] [wpan?] KMSAN: uninit-value in ieee802154_hdr_push (2) From: syzbot To: alex.aring@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wpan@vger.kernel.org, miquel.raynal@bootlin.com, netdev@vger.kernel.org, pabeni@redhat.com, stefan@datenfreihafen.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 610a9b8f49fb Linux 6.7-rc8 git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=1419f31ae80000 kernel config: https://syzkaller.appspot.com/x/.config?x=e51fe20c3e51ba7f dashboard link: https://syzkaller.appspot.com/bug?extid=60a66d44892b66b56545 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12551029e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12595b95e80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/28ecdd56de1e/disk-610a9b8f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3c5afc17c174/vmlinux-610a9b8f.xz kernel image: https://storage.googleapis.com/syzbot-assets/96ff79b2992d/bzImage-610a9b8f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+60a66d44892b66b56545@syzkaller.appspotmail.com ===================================================== BUG: KMSAN: uninit-value in ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] BUG: KMSAN: uninit-value in ieee802154_hdr_push+0x971/0xb90 net/ieee802154/header_ops.c:108 ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] ieee802154_hdr_push+0x971/0xb90 net/ieee802154/header_ops.c:108 ieee802154_header_create+0x9c0/0xc00 net/mac802154/iface.c:396 wpan_dev_hard_header include/net/cfg802154.h:494 [inline] dgram_sendmsg+0xd1d/0x1500 net/ieee802154/socket.c:677 ieee802154_sock_sendmsg+0x91/0xc0 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x490 net/socket.c:2674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Local variable hdr created at: ieee802154_header_create+0x4e/0xc00 net/mac802154/iface.c:360 wpan_dev_hard_header include/net/cfg802154.h:494 [inline] dgram_sendmsg+0xd1d/0x1500 net/ieee802154/socket.c:677 CPU: 1 PID: 5009 Comm: syz-executor271 Not tainted 6.7.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 ===================================================== --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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