From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97285C00140 for ; Sun, 21 Aug 2022 08:17:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229804AbiHUIRX (ORCPT ); Sun, 21 Aug 2022 04:17:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50122 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229902AbiHUIP2 (ORCPT ); Sun, 21 Aug 2022 04:15:28 -0400 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B14D61C136 for ; Sun, 21 Aug 2022 01:15:25 -0700 (PDT) Received: by mail-io1-f69.google.com with SMTP id bh11-20020a056602370b00b00688c8a2b56cso4290325iob.13 for ; Sun, 21 Aug 2022 01:15:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc; bh=5NNw78fjZsnUXvVEAxNq4Tv/jLfrtC69PnIsZeDg9vw=; b=l3scL//1qZRpMPdsBIZ2cd7y4Y7BVBb6GjTe3DnIc71abOlXtnhwNoYh7LIezDgEbG j019H/PGbtI9vU5QW3dtfP2hlKrvIBuEJoKQUjmUo7L6JKbLa0r0VIGUW61I9dylMnk0 1EVHhJGBRAdCwlYYuFQgQ9fh9Etk2wrnXM6z60GFBKyjVt/tlZVPkIG0nMaHogIn1MIX TH0+Qoq2PXJi0uDYBCRDHJV+ZO/JCA6iY9EX6uJhQw/ekN/3U3vJKEmpDpm8WkkDJ0Fa I1ThiG8DzdIxMRSik+BLjwePsrZnu4tp4B/SW0waUyGcGJ3ip2Yu1lW8mmgW5CNu4WFv r3VQ== X-Gm-Message-State: ACgBeo0YUml/dID0/MxUgyCrsHCuxKruq1VEsF+tXUstf1z99piOwefJ z04wMXvVBRzP2oosITaIabrOeKDPYQOAds2DWjpYojcZ/0Ey X-Google-Smtp-Source: AA6agR5EnAm50Et/OCwgPw0eNqolIi56KqTa8X1oagg72eJ8BBxEUERfECSFLAALPm1UeYtemL+67P9apSCbCk3yyqM2OGLaXio5 MIME-Version: 1.0 X-Received: by 2002:a05:6e02:170f:b0:2e5:f6d2:4ea9 with SMTP id u15-20020a056e02170f00b002e5f6d24ea9mr7142704ill.146.1661069725030; Sun, 21 Aug 2022 01:15:25 -0700 (PDT) Date: Sun, 21 Aug 2022 01:15:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e85eff05e6bbeed3@google.com> Subject: [syzbot] usb-testing boot error: general protection fault in mm_alloc From: syzbot To: akpm@linux-foundation.org, bigeasy@linutronix.de, bpf@vger.kernel.org, brauner@kernel.org, david@redhat.com, ebiederm@xmission.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, luto@kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: ad57410d231d usb: gadget: rndis: use %u instead of %d to p.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=15b2b1a5080000 kernel config: https://syzkaller.appspot.com/x/.config?x=3cb39b084894e9a5 dashboard link: https://syzkaller.appspot.com/bug?extid=0c4c86507aef43117d25 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0c4c86507aef43117d25@syzkaller.appspotmail.com general protection fault, probably for non-canonical address 0xffff000000000328: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xfff8200000001940-0xfff8200000001947] CPU: 0 PID: 266 Comm: kworker/u4:2 Not tainted 6.0.0-rc1-syzkaller-00005-gad57410d231d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:freelist_dereference mm/slub.c:347 [inline] RIP: 0010:get_freepointer mm/slub.c:354 [inline] RIP: 0010:get_freepointer_safe mm/slub.c:368 [inline] RIP: 0010:slab_alloc_node mm/slub.c:3211 [inline] RIP: 0010:slab_alloc mm/slub.c:3251 [inline] RIP: 0010:__kmem_cache_alloc_lru mm/slub.c:3258 [inline] RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 mm/slub.c:3268 Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 RSP: 0000:ffffc900015dfe18 EFLAGS: 00010246 RAX: ffff000000000000 RBX: ffff88810e746600 RCX: 0000000000000328 RDX: 0000000000000338 RSI: 0000000000000cc0 RDI: 000000000003e3f0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016d8c0 R13: 0000000000000cc0 R14: ffffffff811440e9 R15: 0000000000000cc0 FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 0000000007825000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mm_alloc+0x19/0xc0 kernel/fork.c:1171 bprm_mm_init fs/exec.c:369 [inline] alloc_bprm+0x1c3/0x900 fs/exec.c:1534 kernel_execve+0xab/0x500 fs/exec.c:1974 call_usermodehelper_exec_async+0x2e3/0x580 kernel/umh.c:112 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:freelist_dereference mm/slub.c:347 [inline] RIP: 0010:get_freepointer mm/slub.c:354 [inline] RIP: 0010:get_freepointer_safe mm/slub.c:368 [inline] RIP: 0010:slab_alloc_node mm/slub.c:3211 [inline] RIP: 0010:slab_alloc mm/slub.c:3251 [inline] RIP: 0010:__kmem_cache_alloc_lru mm/slub.c:3258 [inline] RIP: 0010:kmem_cache_alloc+0x15d/0x4a0 mm/slub.c:3268 Code: 51 08 48 8b 01 48 83 79 10 00 48 89 04 24 0f 84 7c 02 00 00 48 85 c0 0f 84 73 02 00 00 49 8b 3c 24 41 8b 4c 24 28 40 f6 c7 0f <48> 8b 1c 08 0f 85 7b 02 00 00 48 8d 4a 08 65 48 0f c7 0f 0f 94 c0 RSP: 0000:ffffc900015dfe18 EFLAGS: 00010246 RAX: ffff000000000000 RBX: ffff88810e746600 RCX: 0000000000000328 RDX: 0000000000000338 RSI: 0000000000000cc0 RDI: 000000000003e3f0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88810016d8c0 R13: 0000000000000cc0 R14: ffffffff811440e9 R15: 0000000000000cc0 FS: 0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 0000000007825000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 51 push %rcx 1: 08 48 8b or %cl,-0x75(%rax) 4: 01 48 83 add %ecx,-0x7d(%rax) 7: 79 10 jns 0x19 9: 00 48 89 add %cl,-0x77(%rax) c: 04 24 add $0x24,%al e: 0f 84 7c 02 00 00 je 0x290 14: 48 85 c0 test %rax,%rax 17: 0f 84 73 02 00 00 je 0x290 1d: 49 8b 3c 24 mov (%r12),%rdi 21: 41 8b 4c 24 28 mov 0x28(%r12),%ecx 26: 40 f6 c7 0f test $0xf,%dil * 2a: 48 8b 1c 08 mov (%rax,%rcx,1),%rbx <-- trapping instruction 2e: 0f 85 7b 02 00 00 jne 0x2af 34: 48 8d 4a 08 lea 0x8(%rdx),%rcx 38: 65 48 0f c7 0f cmpxchg16b %gs:(%rdi) 3d: 0f 94 c0 sete %al --- 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.