From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f77.google.com (mail-io1-f77.google.com [209.85.166.77]) (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 E946163D for ; Mon, 27 May 2024 00:44:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716770666; cv=none; b=asEFLFlbPsqScoj1tGH087SnICv5qRtU/ubHSePM6k6g5JQDONQk89cEyDTzL3oSzfs96E+p5LMof3EdwemookfaN0FxYCUPaAoQ/mjn+7+P7ecB5vav09vYYiXMxuYn2dmFIFmSouympiWkq0TmM5I6sHKxgHL4MrM7/i0YhlY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716770666; c=relaxed/simple; bh=YLLNooDN0/HSLN7Bhkuq2J+Ulv9x3CHF8Y6DFTcgCJ0=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Vz45F+RrMqRWcps0yUDBL+gDLvzOEuT20EeOhWI++Mws/uQpo5cUgFu7jWpDOag+nRQ1ldU7IT1AJVhrkDPEi8Bz8pE/vD45Vf7xoQvzYjb2NXU3a/7rwtzJJ+RbO1YUN+NTrKboBOIczDJrSAMYNPQujiBgTNIgz7puriX+Qpg= 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=209.85.166.77 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-f77.google.com with SMTP id ca18e2360f4ac-7eac3b73a53so116866139f.0 for ; Sun, 26 May 2024 17:44:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716770664; x=1717375464; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=fZ9DVVzJCjcM9K5tX8UBkpT2XOidm8OOyTP+Gai07qA=; b=cMyOPUqcLlBybeWlRPk0FcSwR0VEVUqlE7KvxocPWCwBXKK3jgmVHUT9Bd5wEwydNC WGWOR1kHKaQ+WiJ10+pxPqj5ejun//XGIUDO0dUf27TU2CLRN1ObOGNP8d7yUYuuhWnK Gj+KQTcc+XJswKI4GLfFv5j+qTrq/d/dyHoqycBc0wEH1gveYvP9yGiYY5cWXQineXFt mBm2xZjsoyiQY20XOxQTMk8HLzagcNxTsUYa20bv08nbqxMttu5NjJd8JJ3TPef8iBb9 TaTCxZH6O0MkW7SysOzgjivc8GUJeyqbBGVUPjifNm4fSrjG1IDihqG3nLmhQh0j/2CV efmg== X-Forwarded-Encrypted: i=1; AJvYcCUS16meXTFV/3CAWoKelWZ+YumCLzuANXMzGtNMBc1OCEZ+7GfoUoPhIYvemo0rBmlY3wjlJIEzeIMG3uBm9w5HCoug+0zd X-Gm-Message-State: AOJu0YzT2ahPmnnNNNlXXn92Zta9xj/sW2UDT0uk3S7MXJkphJ1KtCfd +45BdOO8CRc5ZBdKn9Q6iUNtoab1pxXJwpZb5sYWUw1K6H+gm9rPOJMrARkhFI4KSlbC+bv/ZfQ KUPwZE9/b+RBaCsW0mLWJB1Yr8OtNXlnstk7iBg17tC5bxhTtQU7Y/r0= X-Google-Smtp-Source: AGHT+IHMlVRdAWGtoNpjOKcE4YDn0zSO/EMtUtMcJLJnv+K2DPvBDguh57Z07+BRVKH7F0Mwgv4E/eDPvo6mchXNV683oFBTta6F Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:2c83:b0:488:d489:3963 with SMTP id 8926c6da1cb9f-4b03f6329b1mr173553173.1.1716770664201; Sun, 26 May 2024 17:44:24 -0700 (PDT) Date: Sun, 26 May 2024 17:44:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000099cf25061964d113@google.com> Subject: [syzbot] [bpf?] [net?] general protection fault in dev_map_enqueue (2) From: syzbot To: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, eddyz87@gmail.com, haoluo@google.com, hawk@kernel.org, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, martin.lau@linux.dev, netdev@vger.kernel.org, sdf@google.com, song@kernel.org, syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 8f6a15f095a6 Merge tag 'cocci-for-6.10' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=136bd8fc980000 kernel config: https://syzkaller.appspot.com/x/.config?x=6be91306a8917025 dashboard link: https://syzkaller.appspot.com/bug?extid=cca39e6e84a367a7e6f6 compiler: Debian clang version 15.0.6, 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/02867060d65d/disk-8f6a15f0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4bb75fbf6fb1/vmlinux-8f6a15f0.xz kernel image: https://storage.googleapis.com/syzbot-assets/fd38cadddf33/bzImage-8f6a15f0.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cca39e6e84a367a7e6f6@syzkaller.appspotmail.com Oops: general protection fault, probably for non-canonical address 0xdffffc000000003b: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000001d8-0x00000000000001df] CPU: 0 PID: 12830 Comm: syz-executor.1 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:__xdp_enqueue kernel/bpf/devmap.c:484 [inline] RIP: 0010:dev_map_enqueue+0x70/0x3e0 kernel/bpf/devmap.c:541 Code: c5 18 48 89 e8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 ef e8 b2 10 3a 00 48 8b 5d 00 49 8d af d8 01 00 00 48 89 e8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 3a 02 00 00 8b 6d 00 89 ee 83 e6 04 31 RSP: 0018:ffffc900031ff678 EFLAGS: 00010202 RAX: 000000000000003b RBX: ffff888023efa078 RCX: 0000000000040000 RDX: ffffc90015e01000 RSI: 0000000000000ba1 RDI: 0000000000000ba2 RBP: 00000000000001d9 R08: ffffffff895b0946 R09: ffffffff895b0903 R10: 0000000000000004 R11: ffff888020d73c00 R12: ffff888058f06000 R13: ffff888021fff070 R14: dffffc0000000000 R15: 0000000000000001 FS: 00007f9f791576c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30823000 CR3: 000000002e298000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __xdp_do_redirect_frame net/core/filter.c:4397 [inline] xdp_do_redirect_frame+0x2a6/0x660 net/core/filter.c:4451 xdp_test_run_batch net/bpf/test_run.c:336 [inline] bpf_test_run_xdp_live+0xe60/0x1e60 net/bpf/test_run.c:384 bpf_prog_test_run_xdp+0x80e/0x11b0 net/bpf/test_run.c:1275 bpf_prog_test_run+0x33a/0x3b0 kernel/bpf/syscall.c:4291 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5705 __do_sys_bpf kernel/bpf/syscall.c:5794 [inline] __se_sys_bpf kernel/bpf/syscall.c:5792 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5792 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9f7847cee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9f791570c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f9f785ac050 RCX: 00007f9f7847cee9 RDX: 0000000000000048 RSI: 00000000200000c0 RDI: 000000000000000a RBP: 00007f9f784c949e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f9f785ac050 R15: 00007ffc7dc03298 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__xdp_enqueue kernel/bpf/devmap.c:484 [inline] RIP: 0010:dev_map_enqueue+0x70/0x3e0 kernel/bpf/devmap.c:541 Code: c5 18 48 89 e8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 ef e8 b2 10 3a 00 48 8b 5d 00 49 8d af d8 01 00 00 48 89 e8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 3a 02 00 00 8b 6d 00 89 ee 83 e6 04 31 RSP: 0018:ffffc900031ff678 EFLAGS: 00010202 RAX: 000000000000003b RBX: ffff888023efa078 RCX: 0000000000040000 RDX: ffffc90015e01000 RSI: 0000000000000ba1 RDI: 0000000000000ba2 RBP: 00000000000001d9 R08: ffffffff895b0946 R09: ffffffff895b0903 R10: 0000000000000004 R11: ffff888020d73c00 R12: ffff888058f06000 R13: ffff888021fff070 R14: dffffc0000000000 R15: 0000000000000001 FS: 00007f9f791576c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30823000 CR3: 000000002e298000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 18 48 89 sbb %cl,-0x77(%rax) 3: e8 48 c1 e8 03 call 0x3e8c150 8: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) d: 74 08 je 0x17 f: 48 89 ef mov %rbp,%rdi 12: e8 b2 10 3a 00 call 0x3a10c9 17: 48 8b 5d 00 mov 0x0(%rbp),%rbx 1b: 49 8d af d8 01 00 00 lea 0x1d8(%r15),%rbp 22: 48 89 e8 mov %rbp,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 3a 02 00 00 jne 0x270 36: 8b 6d 00 mov 0x0(%rbp),%ebp 39: 89 ee mov %ebp,%esi 3b: 83 e6 04 and $0x4,%esi 3e: 31 .byte 0x31 --- 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