From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f208.google.com (mail-il1-f208.google.com [209.85.166.208]) (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 5609A16190C for ; Wed, 26 Jun 2024 13:29:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.208 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719408563; cv=none; b=P74ldYk9jgmkKk1GmWzvGxyVj9riYLVMLKYdW52xYJWTDrwPeZ8Ks5BHee/GitjKKbjNsNZLKEe3/1j1wI4viDSVTJRmaR9Tp+NAfzcTCd4vvagu7ihgLVDcjTA0s1/A0Kpmm4dezNMTrvmyPhzxbBNh/ztOrGocgVNv4NVOG04= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719408563; c=relaxed/simple; bh=m3A54rNj/ABm02WsaHZTKTWcdo3Gge+5OqiRvEOav60=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=AuyRbLJPqtZF87rM3TE8l1SUAeTSclZZG0+U0+PVru4Vst8O2clkCo2CrkGx4zMj6IVBZGsW7voYC97lK9MMsE7RWIAZn70spbqpL+jw3/1M5JDPG0uxZclcuGPcye9YELkMzn4qUz4OdgupxfDC2t+mrceKiDyzaBLw5L65X9A= 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=209.85.166.208 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-f208.google.com with SMTP id e9e14a558f8ab-376282b0e2bso82024405ab.1 for ; Wed, 26 Jun 2024 06:29:22 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719408561; x=1720013361; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=808FpBkpDsOyTMQG/Wc5jK3cn9vL1Kq3xpMCaflc4Wk=; b=EeXOTFxaq+2o4ThZjD2X0uPc4mS1sWuMicNLvyKtAZALxjFzYA6cGzFCELRGC8QKZc ansY8AY+2niyjUlBNvdywHnsAPcBRYs2gpdYjX9cP+RbMpea64wjjgMLFm2pRF4KDPsT GnevCg59IrpfEjOe8ixcBB9L0sRkFQ5Q0BDHG4OetUcQbgXfgf+7mhwcgU+4bo+J3kN4 JXZCikHNHxJPEWoT+rJfbPXPUrrn5c7ovx5L9m+iK1eNu3sqIt/oJffqUSipg0CUPv2p VDTyPaw955gBH9hy2SnxCyKKvfRpAka4b55XDII/5WQuLXsYJ1tfItIWshLc8q/8iHO9 qqmQ== X-Forwarded-Encrypted: i=1; AJvYcCWJqqQ14djlNFP9uFzFqfDKEYn4Bh9bsnuwZXq/91wFQiwcUjhNw//83GhOV4Ura3+qXJMifI0pO9dS3zN6jReczmTN7mF3 X-Gm-Message-State: AOJu0YztZt53B8/FB5UMVh0Y39SDGnV4QPA7vZdRSZYsAXVE7xKrAe6V il7tqZA8KZYu8hxs8xKgimD8KNqPnwzqnojDim+CDywgUIKyGG8ObCsnGeAn570u/2QrxTutumh P9LcUgOtK1WXW420mA+iwWbTsHBkrW0+jZaVfNBLqJMs0vsHG6fQKklc= X-Google-Smtp-Source: AGHT+IG73d/Yo7Cev6LSACw0jNK9nc1EnrU//U4Z6S/kFpnUfXoRgWj9gHpp8rtt4pXtx7ysvdJp9VE+iJ92k6WDTeBnfuILXD8X Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a21:b0:376:4cc6:66bc with SMTP id e9e14a558f8ab-3764cc668edmr8010995ab.2.1719408561527; Wed, 26 Jun 2024 06:29:21 -0700 (PDT) Date: Wed, 26 Jun 2024 06:29:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000088b5bc061bcb0009@google.com> Subject: [syzbot] [tipc?] general protection fault in tipc_mon_reinit_self (2) From: syzbot To: davem@davemloft.net, edumazet@google.com, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: b947cc5bf6d7 Merge tag 'erofs-for-6.9-rc7-fixes' of git://.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=147780a7180000 kernel config: https://syzkaller.appspot.com/x/.config?x=3310e643b6ef5d69 dashboard link: https://syzkaller.appspot.com/bug?extid=c13de708dc9a3bb8e9aa compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/e05b77341eca/disk-b947cc5b.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ad295493d850/vmlinux-b947cc5b.xz kernel image: https://storage.googleapis.com/syzbot-assets/e7c8f23427a9/bzImage-b947cc5b.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c13de708dc9a3bb8e9aa@syzkaller.appspotmail.com tipc: Node number set to 10005162 general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 927 Comm: kworker/1:2 Not tainted 6.9.0-rc6-syzkaller-00005-gb947cc5bf6d7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: events tipc_net_finalize_work RIP: 0010:tipc_mon_reinit_self+0x112/0x1e0 net/tipc/monitor.c:719 Code: e4 ba ff ff 48 8d 78 10 48 89 f9 48 c1 e9 03 0f b6 0c 29 84 c9 74 09 80 f9 03 0f 8e a9 00 00 00 8b 48 10 4c 89 f0 48 c1 e8 03 <0f> b6 04 28 84 c0 74 04 3c 03 7e 7e 41 89 0e 4c 89 ff e8 67 55 6e RSP: 0018:ffffc900045cfbd8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000098aaaa RDX: 1ffff110041af159 RSI: ffffffff8b0cb100 RDI: ffff88801f92c010 RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff1f3e922 R10: ffffffff8f9f4917 R11: 0000000000000003 R12: 0000000000000007 R13: fffffbfff1f4293b R14: 0000000000000000 R15: ffff88802dc05010 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3133f000 CR3: 000000005e626000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tipc_net_finalize+0x10c/0x180 net/tipc/net.c:140 process_one_work+0x9a9/0x1ac0 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:tipc_mon_reinit_self+0x112/0x1e0 net/tipc/monitor.c:719 Code: e4 ba ff ff 48 8d 78 10 48 89 f9 48 c1 e9 03 0f b6 0c 29 84 c9 74 09 80 f9 03 0f 8e a9 00 00 00 8b 48 10 4c 89 f0 48 c1 e8 03 <0f> b6 04 28 84 c0 74 04 3c 03 7e 7e 41 89 0e 4c 89 ff e8 67 55 6e RSP: 0018:ffffc900045cfbd8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000098aaaa RDX: 1ffff110041af159 RSI: ffffffff8b0cb100 RDI: ffff88801f92c010 RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff1f3e922 R10: ffffffff8f9f4917 R11: 0000000000000003 R12: 0000000000000007 R13: fffffbfff1f4293b R14: 0000000000000000 R15: ffff88802dc05010 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3133f000 CR3: 000000005e626000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ba ff ff 48 8d mov $0x8d48ffff,%edx 5: 78 10 js 0x17 7: 48 89 f9 mov %rdi,%rcx a: 48 c1 e9 03 shr $0x3,%rcx e: 0f b6 0c 29 movzbl (%rcx,%rbp,1),%ecx 12: 84 c9 test %cl,%cl 14: 74 09 je 0x1f 16: 80 f9 03 cmp $0x3,%cl 19: 0f 8e a9 00 00 00 jle 0xc8 1f: 8b 48 10 mov 0x10(%rax),%ecx 22: 4c 89 f0 mov %r14,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax <-- trapping instruction 2d: 84 c0 test %al,%al 2f: 74 04 je 0x35 31: 3c 03 cmp $0x3,%al 33: 7e 7e jle 0xb3 35: 41 89 0e mov %ecx,(%r14) 38: 4c 89 ff mov %r15,%rdi 3b: e8 .byte 0xe8 3c: 67 55 addr32 push %rbp 3e: 6e outsb %ds:(%rsi),(%dx) --- 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