From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 1EB0D1798C for ; Wed, 25 Sep 2024 13:45:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727271932; cv=none; b=slQY9gDVyukBUQoGaRRnL3KjzNiOhJhRYZFMS+Lb5lnFvq1dFr/6wemRW1Ek6/FrHANB6LiL0Hyn9Sc6nbfPKqYAqB5NhqPKmd2/FJWqKTJifaNFfuJgs2ZLyINApUpCSsCRArQuaTjvs0vJ36ACuOD6LGSoFAWH/wTYDOGJEv0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727271932; c=relaxed/simple; bh=+ZKG31H3fAaEzdcyYn09k2egXs3dE0H/T+D5GvxwY9I=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=YJkzwo5NA8BHfkw3X5HqAEsiPEW5RHGcWR51h+pVVUoBeN3YMQma+crJG0+OaSlGle0rcrO7Z9Poi/xJxOcL+lR5kopUB88fTgCqn9HKMOEdPYxvMfLc/PJ8pmAzqfScvWeAoyWCmOdZtoAgGxWypGEr1gBk3mlxzohx45ADUWo= 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=209.85.166.197 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-il1-f197.google.com with SMTP id e9e14a558f8ab-3a1a969fabfso17569365ab.0 for ; Wed, 25 Sep 2024 06:45:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727271930; x=1727876730; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=is1K5gecx6xdHsjAhZUx+Z6qmkYUnW93aVWBJa+eg4Q=; b=RYiIyEM+Nk6RETKUIjcZj1bm2BH5dpFKgoqOYxi1vSe0T7gM4hMyHIjZtXu+OxrY0Z n8Emfi6U6ygy2gK8rWyp8BctS0LhfnidgQHnnFBOj1BItYuChxLFApHKuf0IEGwO+MDj vk8SPNly0wjKJ2+kIi/E9a0SP4HqqIs1ql786fzgHSg6DV/DGiIJgX+ZJomwmn7VqGFI 3NgHdd+48EsGMtaY7uVVS/ElD7ytIwGHciECgy9uMTEcmuHC3WYaeiR46LR1qSgo5Qz4 1b5PcPNdHQxUAKUEL3PY5e3Ea1prT62q3zV5g2ioiXQsZro2aKVHkgJ+XBHvH0n0O62o TupQ== X-Forwarded-Encrypted: i=1; AJvYcCUmAPltHgnomkxInmL+DgEdT4uwAPf9P+4Xbf/oVvOe3Y+FX1ilOj0rZ+px73neq+JCviVh0oMohGLjrv0=@vger.kernel.org X-Gm-Message-State: AOJu0YxDktVLaaQmfsvl++n1rrxWoVV8Yag/ef3dg+1W5FexN2Afqs9T P7jnjDiuD3NtnEdBGkIKcyk84HTWaV284EEmdZElcKjpdNca+0hHqMFv6G0xrfd3stwNy23w/HJ MolhNRA4GIkhmDfCWLtT196fakot8LKJj3roCPgNU9YzkMrw/gD7MZbg= X-Google-Smtp-Source: AGHT+IGyrBZWFKg0GpuC3WhVxj7WTGQ8sPoK2Ow+DRtwUWnlP5ZssBnuWTy07h4RgwmjzTKdD/f0fkIXBFtgKvyfzomLIIfFBsF7 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d9d:b0:396:e8b8:88d with SMTP id e9e14a558f8ab-3a26d77492amr31042835ab.11.1727271930011; Wed, 25 Sep 2024 06:45:30 -0700 (PDT) Date: Wed, 25 Sep 2024 06:45:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66f413f9.050a0220.211276.0031.GAE@google.com> Subject: [syzbot] [iommu?] kernel BUG in trace_dma_map_sg From: syzbot To: hch@lst.de, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, m.szyprowski@samsung.com, robin.murphy@arm.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 1868f9d0260e Merge tag 'for-linux-6.12-ofs1' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17d11e9f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=d0b35925215243c6 dashboard link: https://syzkaller.appspot.com/bug?extid=d409db2070842f867cd1 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 (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-1868f9d0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/79ecea60635a/vmlinux-1868f9d0.xz kernel image: https://storage.googleapis.com/syzbot-assets/2e88a1660d19/bzImage-1868f9d0.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d409db2070842f867cd1@syzkaller.appspotmail.com FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 0 UID: 0 PID: 5101 Comm: syz.0.0 Not tainted 6.11.0-syzkaller-07462-g1868f9d0260e #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 fail_dump lib/fault-inject.c:52 [inline] should_fail_ex+0x3b0/0x4e0 lib/fault-inject.c:153 _inline_copy_to_user include/linux/uaccess.h:177 [inline] _copy_to_user+0x2f/0xb0 lib/usercopy.c:26 copy_to_user include/linux/uaccess.h:209 [inline] simple_read_from_buffer+0xca/0x150 fs/libfs.c:1124 proc_fail_nth_read+0x1e9/0x250 fs/proc/base.c:1481 vfs_read+0x201/0xbc0 fs/read_write.c:567 ksys_read+0x1a0/0x2c0 fs/read_write.c:712 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: 0033:0x7f145197c93c Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 69 8e 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 bf 8e 02 00 48 RSP: 002b:00007f1452852030 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f1451b35f80 RCX: 00007f145197c93c RDX: 000000000000000f RSI: 00007f14528520a0 RDI: 0000000000000004 RBP: 00007f1452852090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 00007f1451b35f80 R15: 00007ffd70304738 ------------[ cut here ]------------ kernel BUG at include/linux/scatterlist.h:171! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5101 Comm: syz.0.0 Not tainted 6.11.0-syzkaller-07462-g1868f9d0260e #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:sg_page include/linux/scatterlist.h:171 [inline] RIP: 0010:sg_phys include/linux/scatterlist.h:389 [inline] RIP: 0010:perf_trace_dma_map_sg+0xf34/0xf40 include/trace/events/dma.h:178 Code: 00 00 00 fc ff df e9 60 fc ff ff e8 c6 81 17 00 48 c7 c7 40 84 94 8e 4c 89 f6 e8 a7 70 72 03 e9 e3 f2 ff ff e8 ad 81 17 00 90 <0f> 0b e8 b5 eb 41 0a 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0000:ffffc9000308e9e0 EFLAGS: 00010093 RAX: ffffffff817d3d73 RBX: ffffe8ffffc40d6d RCX: ffff88801fb54880 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000308eb40 R08: ffffffff817d33c4 R09: 322e66313a30303a R10: dffffc0000000000 R11: fffff91ffff881ae R12: ffff888000ae26a8 R13: 0000000000000038 R14: 0000000000000008 R15: ffff88804b9e1781 FS: 00007f14528526c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f14519dc900 CR3: 000000001ffb0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_dma_map_sg+0x1da/0x240 include/trace/events/dma.h:178 __dma_map_sg_attrs+0x106/0x1a0 kernel/dma/mapping.c:222 dma_map_sg_attrs+0x34/0x50 kernel/dma/mapping.c:254 ata_sg_setup drivers/ata/libata-core.c:4651 [inline] ata_qc_issue+0x4cf/0xf40 drivers/ata/libata-core.c:4963 ata_scsi_translate drivers/ata/libata-scsi.c:1760 [inline] __ata_scsi_queuecmd+0x9fb/0x1030 drivers/ata/libata-scsi.c:4189 ata_scsi_queuecmd+0x3bb/0x530 drivers/ata/libata-scsi.c:4234 scsi_dispatch_cmd drivers/scsi/scsi_lib.c:1608 [inline] scsi_queue_rq+0x1d7c/0x2e90 drivers/scsi/scsi_lib.c:1850 blk_mq_dispatch_rq_list+0xb89/0x1b30 block/blk-mq.c:2032 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:170 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:184 [inline] __blk_mq_sched_dispatch_requests+0xb8a/0x1840 block/blk-mq-sched.c:309 blk_mq_sched_dispatch_requests+0xcb/0x140 block/blk-mq-sched.c:331 blk_mq_run_hw_queue+0x9a5/0xae0 block/blk-mq.c:2245 blk_mq_flush_plug_list+0x1127/0x1890 block/blk-mq.c:2797 __blk_flush_plug+0x420/0x500 block/blk-core.c:1199 blk_finish_plug+0x5e/0x80 block/blk-core.c:1226 read_pages+0x644/0x840 mm/readahead.c:183 page_cache_ra_unbounded+0x24c/0x8a0 mm/readahead.c:257 do_sync_mmap_readahead+0x499/0x970 filemap_fault+0x820/0x1750 mm/filemap.c:3325 __do_fault+0x135/0x460 mm/memory.c:4670 do_read_fault mm/memory.c:5076 [inline] do_fault mm/memory.c:5206 [inline] do_pte_missing mm/memory.c:3962 [inline] handle_pte_fault+0x3228/0x7010 mm/memory.c:5536 __handle_mm_fault mm/memory.c:5679 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:5847 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f1451951958 Code: 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 62 e2 7d 28 7a ce 89 f8 25 ff 0f 00 00 3d e0 0f 00 00 0f 87 b8 01 00 00 <62> e1 fe 28 6f 17 62 a1 f5 20 ef da 62 a1 6d 20 da db 62 b2 66 20 RSP: 002b:00007f145284f8b8 EFLAGS: 00010283 RAX: 0000000000000900 RBX: 00007f145284fe30 RCX: 0000000000000000 RDX: 00007f1452851f78 RSI: 0000000000000025 RDI: 00007f14519dc900 RBP: 00000000fbad8004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f145284fe10 R13: 00007f1452851f78 R14: 00007f1451b35f80 R15: 00007ffd70304738 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:sg_page include/linux/scatterlist.h:171 [inline] RIP: 0010:sg_phys include/linux/scatterlist.h:389 [inline] RIP: 0010:perf_trace_dma_map_sg+0xf34/0xf40 include/trace/events/dma.h:178 Code: 00 00 00 fc ff df e9 60 fc ff ff e8 c6 81 17 00 48 c7 c7 40 84 94 8e 4c 89 f6 e8 a7 70 72 03 e9 e3 f2 ff ff e8 ad 81 17 00 90 <0f> 0b e8 b5 eb 41 0a 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0000:ffffc9000308e9e0 EFLAGS: 00010093 RAX: ffffffff817d3d73 RBX: ffffe8ffffc40d6d RCX: ffff88801fb54880 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000308eb40 R08: ffffffff817d33c4 R09: 322e66313a30303a R10: dffffc0000000000 R11: fffff91ffff881ae R12: ffff888000ae26a8 R13: 0000000000000038 R14: 0000000000000008 R15: ffff88804b9e1781 FS: 00007f14528526c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f14519dc900 CR3: 000000001ffb0000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. 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