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 X-Spam-Level: X-Spam-Status: No, score=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96D80C433EF for ; Mon, 6 Sep 2021 10:28:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 78EDB60E52 for ; Mon, 6 Sep 2021 10:28:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241936AbhIFK32 (ORCPT ); Mon, 6 Sep 2021 06:29:28 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:53002 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242041AbhIFK3Y (ORCPT ); Mon, 6 Sep 2021 06:29:24 -0400 Received: by mail-il1-f198.google.com with SMTP id b13-20020a92dccd0000b0290223ea53d878so3803713ilr.19 for ; Mon, 06 Sep 2021 03:28:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=ntXi3EDMI2HQmtgjqW1grUjXp+PSryfUSjrb32eJRfY=; b=m4s9TcdWHQhACYuRlRqLfyZ998W7OOz6fWjjxIjF8Uy4TTixoTeMF+9PmZ9UFExsoF 5vB3oix+59oxKU/aFtuMRFc4U8zlrHdRp5gr4uNhhJqQBpvZtAGSWpVmgOwYVx7QpcqZ 3yNFlFxSFWurqabSdKUWF6Y2Sukghv/R2bt2HfjDt2sDbJGuXR/6oJrDWzju3VTzo5rP UML3ywfTbmRrKK19UhOPI4465K61auDr21/v0+pvmmUfybhuXDNcZCch7yjmgingzz41 pwNWlmsl3q58jazQxhMf/v0vyLySJ4AtgcATXCViDHcM/2FxTb3Q10ohhDoZjoH4SpFR nGKw== X-Gm-Message-State: AOAM530HbEffzhXq8Pok3qPDUmQpHoqVAt9uxYU8OPfVdVs5lfVlXZmv DoDTIT8lOGALO/swcB0EO6DsvxedjDx4MV9CSZQTkU+YCdR2 X-Google-Smtp-Source: ABdhPJxR0vb1gDjeKKcwi1sFxWHlIgrednjQ4mux26BtksftHKe+HlSOhu28FIPhOkJ5I9VK95f2w2dmbuM/Hj1zmjodDchU+Cf8 MIME-Version: 1.0 X-Received: by 2002:a02:a18d:: with SMTP id n13mr10433784jah.120.1630924099740; Mon, 06 Sep 2021 03:28:19 -0700 (PDT) Date: Mon, 06 Sep 2021 03:28:19 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009eeadd05cb511b60@google.com> Subject: [syzbot] general protection fault in hrtimer_start_range_ns From: syzbot To: linux-kernel@vger.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: 835d31d319d9 Merge tag 'media/v5.15-1' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14489886300000 kernel config: https://syzkaller.appspot.com/x/.config?x=d793523866f2daea dashboard link: https://syzkaller.appspot.com/bug?extid=b935db3fe409625cca1b compiler: Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.1 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b935db3fe409625cca1b@syzkaller.appspotmail.com general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 12936 Comm: iou-sqp-12929 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_hrtimer_base kernel/time/hrtimer.c:173 [inline] RIP: 0010:hrtimer_start_range_ns+0xc9/0x1ae0 kernel/time/hrtimer.c:1296 Code: 89 9c 24 88 00 00 00 42 80 3c 33 00 74 08 48 89 ef e8 7b 34 5b 00 4c 8b 6d 00 4d 39 fd 0f 84 95 00 00 00 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 58 34 5b 00 49 8b 7d 00 e8 6f 19 RSP: 0018:ffffc900097af170 EFLAGS: 00010046 RAX: ffff888016d49508 RBX: 1ffff11002da92a7 RCX: ffff888027371c80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff888016d49538 R08: ffffffff816fb4b5 R09: 0000000000000003 R10: fffff520012f5e2d R11: 0000000000000004 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f7386f28700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000002b5e4000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hrtimer_start include/linux/hrtimer.h:418 [inline] io_timeout fs/io_uring.c:6120 [inline] io_issue_sqe+0x53d3/0x9280 fs/io_uring.c:6590 __io_queue_sqe+0xe3/0x1000 fs/io_uring.c:6864 tctx_task_work+0x2ad/0x560 fs/io_uring.c:2143 task_work_run+0x146/0x1c0 kernel/task_work.c:164 tracehook_notify_signal include/linux/tracehook.h:212 [inline] io_run_task_work+0x110/0x140 fs/io_uring.c:2403 io_sq_thread+0xb5e/0x1220 fs/io_uring.c:7337 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Modules linked in: ---[ end trace 841fafb7511d53d3 ]--- RIP: 0010:lock_hrtimer_base kernel/time/hrtimer.c:173 [inline] RIP: 0010:hrtimer_start_range_ns+0xc9/0x1ae0 kernel/time/hrtimer.c:1296 Code: 89 9c 24 88 00 00 00 42 80 3c 33 00 74 08 48 89 ef e8 7b 34 5b 00 4c 8b 6d 00 4d 39 fd 0f 84 95 00 00 00 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 58 34 5b 00 49 8b 7d 00 e8 6f 19 RSP: 0018:ffffc900097af170 EFLAGS: 00010046 RAX: ffff888016d49508 RBX: 1ffff11002da92a7 RCX: ffff888027371c80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff888016d49538 R08: ffffffff816fb4b5 R09: 0000000000000003 R10: fffff520012f5e2d R11: 0000000000000004 R12: 0000000000000000 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f7386f28700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000002b5e4000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 89 9c 24 88 00 00 00 mov %ebx,0x88(%rsp) 7: 42 80 3c 33 00 cmpb $0x0,(%rbx,%r14,1) c: 74 08 je 0x16 e: 48 89 ef mov %rbp,%rdi 11: e8 7b 34 5b 00 callq 0x5b3491 16: 4c 8b 6d 00 mov 0x0(%rbp),%r13 1a: 4d 39 fd cmp %r15,%r13 1d: 0f 84 95 00 00 00 je 0xb8 23: 4d 89 ef mov %r13,%r15 26: 49 c1 ef 03 shr $0x3,%r15 * 2a: 43 80 3c 37 00 cmpb $0x0,(%r15,%r14,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ef mov %r13,%rdi 34: e8 58 34 5b 00 callq 0x5b3491 39: 49 8b 7d 00 mov 0x0(%r13),%rdi 3d: e8 .byte 0xe8 3e: 6f outsl %ds:(%rsi),(%dx) 3f: 19 .byte 0x19 --- This report is generated by a bot. 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