From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 0B3B017C66 for ; Sat, 20 Apr 2024 18:35:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713638106; cv=none; b=V/8qUi0jeI1Rl1C3ijrgcDcWHIlAbB+s/RxXm2hVVYIpG8LP6TEcEGpfnT1NMQaIWlKYBx4F5uZsn/e5+t5zNmQps0mF4U3T+yUmxGKPOrawRfTMXcsTJS51ZzqPeYo7YocjBO6pq4DT9/ghqoKkRi93ZWHH16oHNem7hsDxCc0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713638106; c=relaxed/simple; bh=hdYBH6iHeFdCwus1qkWibPK9xXXOODQaZ79r1j4yrBI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=JUXTMDyvg66/X18ulaT38d2Wsojgx9BYOETsRC923sGzqOcl+6v03qT0xE+Zjpd1/JHfaSbSsC6o+50VmCu83WmZE90R+vE1maCskscrxj/0LpBA4sNYzfGVfZhsjXDRoIplENFWUQ8NmCnPZ1EG4AxJocmK3sQvo1k5y+ac93I= 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=209.85.166.200 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-il1-f200.google.com with SMTP id e9e14a558f8ab-36b323b64faso36360105ab.3 for ; Sat, 20 Apr 2024 11:35:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713638104; x=1714242904; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=E/RSUERUuEiGuR/bt0u6YwzU2HAwP9JNrb2sLt0V+TM=; b=W8sXNXoAZuopIa16AfWrE9t6QFuxJzfO1LI24VS59gULNwsrv1JhjMAm7QtlzMrVSY GX5ThRdO5ck1hf0SSbEjkLK8sY6oJhe+uwVfCnbzUFNTgEKJmG2mn0w6KdvpqzEx81D5 l9jEUHy7ITfPT60jE0fbf9go7WcTacqqkqh9GheYgj2pznvaUtNuj2tq2xqlOVS8zNTI Eq0GXnwtl9XFYX9QMXNysZADkTloddH0mXke162pU4gNnfeazFKV6rcWQrYxCGwffHk0 6A+P9iURHCvmBXo59L0lBldEVPEs3DaIPE4+YRa9YxQwN69Gv6fNtP8465XUqjST2Esn cpJw== X-Forwarded-Encrypted: i=1; AJvYcCW8+Qlk8TQFc1aXNmwQC0GN/53E8qupw8lzlx+r+hifkcyvF3++TGBg0krAq0SARRvLmqHDdUzAOgB0EU2p5xrYJ6y/DN8g X-Gm-Message-State: AOJu0YwWH3XOjCa5vyZZJSotSojEMsj9GBo6pddHu7K6OktC/Vv05em1 NOMmpFV0r88/fT1QDGSijcfrfUbDlMqtI9ClolORVVUFVZibv2DWblJbKR9kAiokTO9lp6680Rq zp0Oh702ZwBOOZioPFk5+KWescAjxToBWjJHrrykUlU7MyEiuEtO7xhA= X-Google-Smtp-Source: AGHT+IEIYRljOZ2wAtG68BgkwUPz1JJIzsBclxONGi2PdmpGI2v+nTHaehY42mQIKfag3/pz7z4wzM709vsB92+SFOsPU95f+07y Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:c267:0:b0:36b:fbab:9f14 with SMTP id h7-20020a92c267000000b0036bfbab9f14mr386675ild.1.1713638104271; Sat, 20 Apr 2024 11:35:04 -0700 (PDT) Date: Sat, 20 Apr 2024 11:35:04 -0700 In-Reply-To: <000000000000c6405606166fdc68@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007aa28106168b76c9@google.com> Subject: Re: [syzbot] [net?] WARNING in gre_tap_xmit (2) From: syzbot To: davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, fw@strlen.de, horms@kernel.org, kuba@kernel.org, kuniyu@amazon.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 219eee9c0d16f1b754a8b85275854ab17df0850a Author: Florian Westphal Date: Fri Feb 16 11:36:57 2024 +0000 net: skbuff: add overflow debug check to pull/push helpers bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=167a954f180000 start commit: 443574b03387 riscv, bpf: Fix kfunc parameters incompatibil.. git tree: bpf final oops: https://syzkaller.appspot.com/x/report.txt?x=157a954f180000 console output: https://syzkaller.appspot.com/x/log.txt?x=117a954f180000 kernel config: https://syzkaller.appspot.com/x/.config?x=6fb1be60a193d440 dashboard link: https://syzkaller.appspot.com/bug?extid=c298c9f0e46a3c86332b syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14a94f00980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15bce6ab180000 Reported-by: syzbot+c298c9f0e46a3c86332b@syzkaller.appspotmail.com Fixes: 219eee9c0d16 ("net: skbuff: add overflow debug check to pull/push helpers") For information about bisection process see: https://goo.gl/tpsmEJ#bisection