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Thu, 13 Oct 2022 01:01:48 -0700 (PDT) Date: Thu, 13 Oct 2022 01:01:48 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d2fe6805eae5ebff@google.com> Subject: [syzbot] kernel BUG in truncate_inode_pages_range From: syzbot To: akpm@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" ARC-Authentication-Results: i=1; imf09.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf09.hostedemail.com: domain of 37MVHYwkbALcpvwhXiiboXmmfa.dlldibrpboZlkqbkq.Zlj@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.70 as permitted sender) smtp.mailfrom=37MVHYwkbALcpvwhXiiboXmmfa.dlldibrpboZlkqbkq.Zlj@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1665648109; a=rsa-sha256; cv=none; b=ijNU7NUvzpvkcFhj0VAm6MrqJ8/vLqTc+Zqxjaso6hD7nNcewena+NujJ9ETTS+UIw4Qdj 61GNhd0IFma01C8vQ/xzR/ZBLr8NNNUQHBzV0PMoooypAguOcv6N066wF+oB3XmBHJ9xM+ H3kOb5KYsDhktHj+/xf0v+A3VboRQVM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1665648109; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding:in-reply-to: references; bh=5tyGVMnECA3wWyWqGy8dFnwc4HRs2yeTj/5aiMiOJ64=; b=vYWSwDoWFq/KU0RI9HID7dX44NWR+hRGvQcAb5ge76INWMFUWTA7GfoFfjv7+LMfVLHDHs AVEW/CI0/K/LUMduC5m6F57JpEZ68CQFksWC4zH3wjOGseGUr1/XyJowv8Zgzt4BLD7ERQ ONKNDQivPk6UiZ0ZTRrn+Xp0hJUAens= X-Rspam-User: Authentication-Results: imf09.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf09.hostedemail.com: domain of 37MVHYwkbALcpvwhXiiboXmmfa.dlldibrpboZlkqbkq.Zlj@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.70 as permitted sender) smtp.mailfrom=37MVHYwkbALcpvwhXiiboXmmfa.dlldibrpboZlkqbkq.Zlj@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 1CE8A14002E X-Stat-Signature: ifxi5yqyrcg568m3hk7qx4pgz575j3kf X-HE-Tag: 1665648108-55174 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot found the following issue on: HEAD commit: 493ffd6605b2 Merge tag 'ucount-rlimits-cleanups-for-v5.19'.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15d3b31a880000 kernel config: https://syzkaller.appspot.com/x/.config?x=d19f5d16783f901 dashboard link: https://syzkaller.appspot.com/bug?extid=67418a97d2c47464ca17 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f1ff6481e26f/disk-493ffd66.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/101bd3c7ae47/vmlinux-493ffd66.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+67418a97d2c47464ca17@syzkaller.appspotmail.com sb_set_blocksize block/bdev.c:161 [inline] sb_min_blocksize+0xc0/0x180 block/bdev.c:177 isofs_fill_super+0xa28/0x28d0 fs/isofs/inode.c:658 mount_bdev+0x26c/0x3a0 fs/super.c:1400 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd ------------[ cut here ]------------ kernel BUG at mm/truncate.c:424! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 27836 Comm: syz-executor.2 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:truncate_inode_pages_range+0x1548/0x1780 mm/truncate.c:424 Code: e8 ad 0e ce ff 4c 89 ff 48 c7 c6 20 50 98 8a e8 de 24 0a 00 0f 0b e8 97 0e ce ff 4c 89 ff 48 c7 c6 80 4f 98 8a e8 c8 24 0a 00 <0f> 0b e8 e1 96 6d 08 e8 7c 0e ce ff 4c 89 e7 48 c7 c6 20 50 98 8a RSP: 0018:ffffc9000916f7c0 EFLAGS: 00010246 RAX: 0d16a9ba1ff17c00 RBX: fffffffffffff880 RCX: 0000000000040000 RDX: ffffc9000a999000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000916f9f0 R08: ffffffff81e2ae1b R09: ffffed10173667f1 R10: ffffed10173667f1 R11: 1ffff110173667f0 R12: 00000000000007ff R13: 0000000000000002 R14: 0000000000000001 R15: ffffea0001e08c00 FS: 00007f3cf4838700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0247f4320 CR3: 00000000268a5000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kill_bdev block/bdev.c:76 [inline] set_blocksize+0x2ec/0x360 block/bdev.c:152 sb_set_blocksize block/bdev.c:161 [inline] sb_min_blocksize+0xc0/0x180 block/bdev.c:177 isofs_fill_super+0xa28/0x28d0 fs/isofs/inode.c:658 mount_bdev+0x26c/0x3a0 fs/super.c:1400 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3cf368cada Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3cf4837f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f3cf368cada RDX: 0000000020000100 RSI: 00000000200001c0 RDI: 00007f3cf4837fe0 RBP: 00007f3cf4838020 R08: 00007f3cf4838020 R09: 0000000020000100 R10: 0000000000000001 R11: 0000000000000202 R12: 0000000020000100 R13: 00000000200001c0 R14: 00007f3cf4837fe0 R15: 0000000020000080 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:truncate_inode_pages_range+0x1548/0x1780 mm/truncate.c:424 Code: e8 ad 0e ce ff 4c 89 ff 48 c7 c6 20 50 98 8a e8 de 24 0a 00 0f 0b e8 97 0e ce ff 4c 89 ff 48 c7 c6 80 4f 98 8a e8 c8 24 0a 00 <0f> 0b e8 e1 96 6d 08 e8 7c 0e ce ff 4c 89 e7 48 c7 c6 20 50 98 8a RSP: 0018:ffffc9000916f7c0 EFLAGS: 00010246 RAX: 0d16a9ba1ff17c00 RBX: fffffffffffff880 RCX: 0000000000040000 RDX: ffffc9000a999000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9000916f9f0 R08: ffffffff81e2ae1b R09: ffffed10173667f1 R10: ffffed10173667f1 R11: 1ffff110173667f0 R12: 00000000000007ff R13: 0000000000000002 R14: 0000000000000001 R15: ffffea0001e08c00 FS: 00007f3cf4838700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c023176000 CR3: 00000000268a5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.