From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B4D3D219F6 for ; Wed, 4 Oct 2023 22:39:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mail-oa1-f80.google.com (mail-oa1-f80.google.com [209.85.160.80]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C83E219D for ; Wed, 4 Oct 2023 15:38:51 -0700 (PDT) Received: by mail-oa1-f80.google.com with SMTP id 586e51a60fabf-1dcdb642868so501561fac.0 for ; Wed, 04 Oct 2023 15:38:51 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696459131; x=1697063931; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=RoUHWZqBgk2pNpDdFNHkbX4RlWGSvne5VSjvJ2m0a0Y=; b=WvsyRPAGPhsNyB0CksngDbbXZh2X5sQetRFUdy2J+rN1H16cKtneft/yH0N8kALeWE aP+eaWRkLCTEcdwYv3Kq4ch858t/ZtVZIkemWugOCzts1okH3G7j1rCtlSiN1XMlq4A8 uPn3Vw9mcdx8FZM6olJEfsuf3ow8OcbOE+yxDsSIKxUBb8ZM8bVmxPRMAvoInU+c/n2h fDgTIgrv0JrQx7cHrwcsR6MvRDJR52tHQf9AGSo46IMW9/AfjVH9bF//Js3MFC3XEPrQ qPmQj6cE0w19y9CwaniJq8Dg+9wqa2IJwbuZuK0/Z5eMIvRO6PP5LDXVP7CUnIKHmvXW DcsA== X-Gm-Message-State: AOJu0YziI1EUpwhZ6r0pcsO0/GDnPaiATGbfaeLYpQGazMO74hrQ2j0l h+VUEaAGhsfS1z3gc3vgCp+yofKu0lCm1eq/aAQQVcpFp1j1 X-Google-Smtp-Source: AGHT+IHZY/6QhxXn312XoQMfsJYvxs/hrbPyjxbUMlieErVSfU9Ud6OH9dLxHTI9WCOYfblUUhXY5JgSOMGAlGbRogbE6AH1N/rD Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6871:6a83:b0:1d6:4da3:ae2d with SMTP id zf3-20020a0568716a8300b001d64da3ae2dmr1353623oab.7.1696459131059; Wed, 04 Oct 2023 15:38:51 -0700 (PDT) Date: Wed, 04 Oct 2023 15:38:51 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e20df20606ebab4f@google.com> Subject: [syzbot] [bpf?] [net?] WARNING: zero-size vmalloc in xskq_create From: syzbot To: andrii@kernel.org, ast@kernel.org, bjorn@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, hawk@kernel.org, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, maciej.fijalkowski@intel.com, magnus.karlsson@intel.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.4 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2, SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Hello, syzbot found the following issue on: HEAD commit: cbf3a2cb156a Merge tag 'nfs-for-6.6-3' of git://git.linux-.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1706797c680000 kernel config: https://syzkaller.appspot.com/x/.config?x=6b4e3baedc34d5e0 dashboard link: https://syzkaller.appspot.com/bug?extid=b132693e925cbbd89e26 compiler: arm-linux-gnueabi-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/8ead8862021c/non_bootable_disk-cbf3a2cb.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a4d0b2b619dd/vmlinux-cbf3a2cb.xz kernel image: https://storage.googleapis.com/syzbot-assets/3a3810831d66/zImage-cbf3a2cb.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b132693e925cbbd89e26@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6300 at mm/vmalloc.c:3247 __vmalloc_node_range+0x448/0x54c mm/vmalloc.c:3247 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 PID: 6300 Comm: syz-executor.1 Not tainted 6.6.0-rc4-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<8181d9c0>] (dump_backtrace) from [<8181dabc>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:82622a04 r5:60000093 r4:81fb565c [<8181daa4>] (show_stack) from [<8183adac>] (__dump_stack lib/dump_stack.c:88 [inline]) [<8181daa4>] (show_stack) from [<8183adac>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<8183ad64>] (dump_stack_lvl) from [<8183add0>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:82854d14 [<8183adb8>] (dump_stack) from [<8181e564>] (panic+0x120/0x374 kernel/panic.c:340) [<8181e444>] (panic) from [<80242e4c>] (check_panic_on_warn kernel/panic.c:236 [inline]) [<8181e444>] (panic) from [<80242e4c>] (print_tainted+0x0/0xa0 kernel/panic.c:231) r3:8260c484 r2:00000001 r1:81f9e164 r0:81fa5d18 r7:8048685c [<80242dd8>] (check_panic_on_warn) from [<80243040>] (__warn+0x7c/0x180 kernel/panic.c:673) [<80242fc4>] (__warn) from [<802432bc>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:698) r8:00000009 r7:81fcbdd8 r6:eaec9df4 r5:84520000 r4:00000000 [<80243148>] (warn_slowpath_fmt) from [<8048685c>] (__vmalloc_node_range+0x448/0x54c mm/vmalloc.c:3247) r10:00000126 r9:84520000 r8:ffffffff r7:ff800000 r6:00000dc0 r5:00000000 r4:00000000 [<80486414>] (__vmalloc_node_range) from [<80486a38>] (vmalloc_user+0x6c/0x74 mm/vmalloc.c:3474) r10:00000126 r9:84520000 r8:8bcb4640 r7:00000000 r6:00000000 r5:89ddc040 r4:00000000 [<804869cc>] (vmalloc_user) from [<817cc7c8>] (xskq_create+0x74/0xc0 net/xdp/xsk_queue.c:39) [<817cc754>] (xskq_create) from [<817caddc>] (xsk_init_queue net/xdp/xsk.c:952 [inline]) [<817cc754>] (xskq_create) from [<817caddc>] (xsk_setsockopt+0x1d0/0x2c8 net/xdp/xsk.c:1286) r7:8bcb46b0 r6:8bcb4400 r5:00000000 r4:00000002 [<817cac10>] (xsk_setsockopt) from [<8134280c>] (__sys_setsockopt+0xd8/0x1c8 net/socket.c:2308) r8:80200288 r7:00000126 r6:20000280 r5:89886f00 r4:817cac0c [<81342734>] (__sys_setsockopt) from [<81342918>] (__do_sys_setsockopt net/socket.c:2319 [inline]) [<81342734>] (__sys_setsockopt) from [<81342918>] (sys_setsockopt+0x1c/0x24 net/socket.c:2316) r6:0014c2c8 r5:00000000 r4:00000020 [<813428fc>] (sys_setsockopt) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xeaec9fa8 to 0xeaec9ff0) 9fa0: 00000020 00000000 00000003 0000011b 00000002 20000280 9fc0: 00000020 00000000 0014c2c8 00000126 7ea3332e 7ea3332f 003d0f00 76b4c0fc 9fe0: 76b4bf08 76b4bef8 00016688 000509e0 Rebooting in 86400 seconds.. --- 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 bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup