From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 887F67C6DF for ; Thu, 18 Jul 2024 21:31:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721338288; cv=none; b=pMpRszlEEEyPpYJuZ4NFN0poDeQRLjY5ro3AYph5Vny0bdgnub8wdX2aotIF1qug3Niq9ATkWQl/nLt4iIZ5n5UW3etzFMx0hQX2O+8izHBJqd3agBRC07vPqbzZhQWEiqHUlObOkcZQj45jCeye+QObP+8LphkpLafA+ypuLr4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721338288; c=relaxed/simple; bh=lfgnB7p+ysbWfx48oICHCv0nScYSUWQBPp4pTHY9XWw=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=ZZpOAg2YKgDQ78WiGBdoRZ3Jei+M7nWKM+ypuZd+HfT6KXyZPMiORI9/NLtVAMY1YF1jgcY7pryqhtpSW9pTYv7WhUaOzuJ9T2QRPO+xB1bR0bgEl8Xouuo3QO3TeIES1Vxe4vzql1TLkuNTDlnTJ6s7jwMauZYxSFhAv7GqR3A= 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=209.85.166.70 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-f70.google.com with SMTP id ca18e2360f4ac-7fb15d52c5cso201847939f.3 for ; Thu, 18 Jul 2024 14:31:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721338286; x=1721943086; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Zo8QTXSrAqLno8qBT/oINWD+/xnlnXeqHF+x0BlH0+E=; b=wvsuCcWlfUnKzcuryk0A+NoyiL4iHWQVkVqC/+6gMipZw/Z0SLuifeavEcxIQ72nhz JewCcnrFsG6xppPB/zvtd72+AZV0m8z8B31EHDCbVz/IZ+dlOSYCx4xBRmTmko9QocXQ WtL0tq+sLEcsEzAmIA2nVOwNmEFu+jxklJLkLcBmnqYz/tsEcCJuN1jDjsrTlTX9Cvnz jbry+dFcCFfnvLnYrC18Buw6Tn3G9dgSwuRxu6BzcmEKmNtbc1ayqq9ZslBvqrJ9zLvu NhALekwzjWioCMsh/iq4su3cr5XXwutG8z3GLNo/+4JLwoj1vx8A/ZeLxIy6vXOpiFFK 57JA== X-Forwarded-Encrypted: i=1; AJvYcCWg+kfPTSnfA7PJ68ovu4Fr9f4YhntK2uO3Wj+7US0cxRCJ+tV49f3gegTHiXpIX5tw3HpQfK5nCEBg8+YaAE6HUuzYDr1h X-Gm-Message-State: AOJu0Yzi1jt3pdPxSEhzYtFQJqgND89PD7BYh2Pp3veHYZ+2+is484bH NV9aOdk+ACFbxDfu8FQ8sHpQN7q6eJbvz76KhKfpewLyiHaKAJuGpr5O+47uBi2sPUByYU6j8xg ChTAAr+5BLiy02oerQF0VVvmRG5WrGc/sT/Rjbe5T6doT2BS4saw9IiU= X-Google-Smtp-Source: AGHT+IE9+2/J1akDUbiOUSxXwIAe+jIv2sOE1Mt4LTNngmAtcQ3J1uVr1ADYNv6FQZuUtqsdW7/lENRiojigPrTXCSiflzrpCyzW 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:b24:b0:381:c14:70cf with SMTP id e9e14a558f8ab-3955523dd99mr5539615ab.1.1721338285734; Thu, 18 Jul 2024 14:31:25 -0700 (PDT) Date: Thu, 18 Jul 2024 14:31:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000f50a4061d8c4d3c@google.com> Subject: [syzbot] [bpf?] [net?] general protection fault in __cpu_map_flush From: syzbot To: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, eddyz87@gmail.com, edumazet@google.com, haoluo@google.com, 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, pabeni@redhat.com, sdf@fomichev.me, 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: b1bc554e009e Merge tag 'media/v6.11-1' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=165f372d980000 kernel config: https://syzkaller.appspot.com/x/.config?x=65e004fdd6e65e46 dashboard link: https://syzkaller.appspot.com/bug?extid=c226757eb784a9da3e8b 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/eba440b3a1dc/disk-b1bc554e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7ef97684b39f/vmlinux-b1bc554e.xz kernel image: https://storage.googleapis.com/syzbot-assets/c465a94c9348/bzImage-b1bc554e.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c226757eb784a9da3e8b@syzkaller.appspotmail.com Oops: general protection fault, probably for non-canonical address 0xe3fffb240028e7c8: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x1ffff92001473e40-0x1ffff92001473e47] CPU: 0 PID: 5818 Comm: syz.2.162 Not tainted 6.10.0-syzkaller-05505-gb1bc554e009e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:__cpu_map_flush+0x42/0xd0 Code: e8 e3 d9 d6 ff 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 8d c7 39 00 49 8b 1e 4c 39 f3 74 77 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 6f c7 39 00 4c 8b 23 48 8d 7b c0 RSP: 0018:ffffc90000007bb0 EFLAGS: 00010203 RAX: 03ffff240028e7c8 RBX: 1ffff92001473e44 RCX: ffff888027121e00 RDX: 0000000080000101 RSI: 0000000000000000 RDI: ffffc9000a39f1a0 RBP: dffffc0000000000 R08: ffffffff895d4e8a R09: 1ffffffff1f5a8c5 R10: dffffc0000000000 R11: fffffbfff1f5a8c6 R12: ffffc9000a39f1a0 R13: ffffc9000a39f160 R14: ffffc9000a39f1a0 R15: dffffc0000000000 FS: 00007feb6f7916c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c343cd0 CR3: 000000001ec24000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: xdp_do_check_flushed+0x136/0x240 net/core/filter.c:4304 __napi_poll+0xe4/0x490 net/core/dev.c:6774 napi_poll net/core/dev.c:6840 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6962 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 tun_rx_batched+0x732/0x8f0 tun_get_user+0x2f84/0x4720 drivers/net/tun.c:2006 tun_chr_write_iter+0x113/0x1f0 drivers/net/tun.c:2052 new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feb6e9746df Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 8c 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 7c 8c 02 00 48 RSP: 002b:00007feb6f791010 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007feb6eb03f60 RCX: 00007feb6e9746df RDX: 0000000000000036 RSI: 0000000020000240 RDI: 00000000000000c8 RBP: 00007feb6e9e4e5d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000036 R11: 0000000000000293 R12: 0000000000000000 R13: 000000000000000b R14: 00007feb6eb03f60 R15: 00007ffcc6c5e298 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__cpu_map_flush+0x42/0xd0 Code: e8 e3 d9 d6 ff 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 8d c7 39 00 49 8b 1e 4c 39 f3 74 77 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 6f c7 39 00 4c 8b 23 48 8d 7b c0 RSP: 0018:ffffc90000007bb0 EFLAGS: 00010203 RAX: 03ffff240028e7c8 RBX: 1ffff92001473e44 RCX: ffff888027121e00 RDX: 0000000080000101 RSI: 0000000000000000 RDI: ffffc9000a39f1a0 RBP: dffffc0000000000 R08: ffffffff895d4e8a R09: 1ffffffff1f5a8c5 R10: dffffc0000000000 R11: fffffbfff1f5a8c6 R12: ffffc9000a39f1a0 R13: ffffc9000a39f160 R14: ffffc9000a39f1a0 R15: dffffc0000000000 FS: 00007feb6f7916c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c343cd0 CR3: 000000001ec24000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 e3 d9 d6 ff call 0xffd6d9e8 5: 4c 89 f0 mov %r14,%rax 8: 48 c1 e8 03 shr $0x3,%rax c: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 11: 74 08 je 0x1b 13: 4c 89 f7 mov %r14,%rdi 16: e8 8d c7 39 00 call 0x39c7a8 1b: 49 8b 1e mov (%r14),%rbx 1e: 4c 39 f3 cmp %r14,%rbx 21: 74 77 je 0x9a 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 6f c7 39 00 call 0x39c7a8 39: 4c 8b 23 mov (%rbx),%r12 3c: 48 8d 7b c0 lea -0x40(%rbx),%rdi --- 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