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AJvYcCXziWmq+sB9xf8Q4D4bSTbb5fs7topxOXIy1d6+pu58zY8m8hWy3tiFy1LjcYj9gt5mJimoxctQzsziBKo=@vger.kernel.org X-Gm-Message-State: AOJu0Yzhonel0IAXqnRoHfW9gELw/gWbQImT6mdwzUT3hiZB2/Yq/Qhn E5emuMF2CvVQH8xQzXmMVspisgNPna+c906NrYh+D3BPBIRnZbZziZVJduMClelcKwLI7qoSa+m RtAoN8vxJkkLdWhznhpItpkMh7tulrU1pE/yRFpOC14e7x4LHWhHGyCI= X-Google-Smtp-Source: AGHT+IEGTkhTpZewK0yZ4dnBAz/syN7LWHbXDNJU2Va13KdJcm+RMRSlozvL9pBfuuxhBeFPscsMEn6CGtZlQ0nG9Qf5g6CbUb4G Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2686:b0:3d1:bbc2:a324 with SMTP id e9e14a558f8ab-3d28076e074mr41098035ab.4.1739660846652; Sat, 15 Feb 2025 15:07:26 -0800 (PST) Date: Sat, 15 Feb 2025 15:07:26 -0800 In-Reply-To: <0000000000001e20c30621e8d767@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67b11e2e.050a0220.54b41.0000.GAE@google.com> Subject: Re: [syzbot] [ocfs2?] kernel BUG in ocfs2_dio_wr_get_block From: syzbot To: jlbec@evilplan.org, joseph.qi@linux.alibaba.com, linux-kernel@vger.kernel.org, mark@fasheh.com, ocfs2-devel@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has found a reproducer for the following issue on: HEAD commit: 7ff71e6d9239 Merge tag 'alpha-fixes-v6.14-rc2' of git://gi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1463cbf8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=c776e555cfbdb82d dashboard link: https://syzkaller.appspot.com/bug?extid=f8b081be889b639423bb compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1242b9b0580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-7ff71e6d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/fd3ab8248fc7/vmlinux-7ff71e6d.xz kernel image: https://storage.googleapis.com/syzbot-assets/78a957463e92/bzImage-7ff71e6d.xz mounted in repro #1: https://storage.googleapis.com/syzbot-assets/9f4996b458f4/mount_0.gz fsck result: OK (log: https://syzkaller.appspot.com/x/fsck.log?x=13d217df980000) mounted in repro #2: https://storage.googleapis.com/syzbot-assets/bb9bcc7dccee/mount_1.gz fsck result: OK (log: https://syzkaller.appspot.com/x/fsck.log?x=1063cbf8580000) mounted in repro #3: https://storage.googleapis.com/syzbot-assets/f9c91d3ae4fc/mount_11.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f8b081be889b639423bb@syzkaller.appspotmail.com (syz.0.529,6754,0):ocfs2_commit_trans:382 ERROR: status = -5 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:2259! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 6754 Comm: syz.0.529 Not tainted 6.14.0-rc2-syzkaller-00259-g7ff71e6d9239 #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:ocfs2_dio_wr_get_block+0x18bd/0x18d0 fs/ocfs2/aops.c:2259 Code: 02 8f 4c 89 f2 e8 13 7d 76 01 e9 3a f6 ff ff e8 99 d0 50 08 e8 b4 5b 0a fe 90 0f 0b e8 ac 5b 0a fe 90 0f 0b e8 a4 5b 0a fe 90 <0f> 0b e8 9c 5b 0a fe 90 0f 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 RSP: 0018:ffffc9000d1a6cc0 EFLAGS: 00010293 RAX: ffffffff83b75c9c RBX: 0000000000001000 RCX: ffff8880003b2440 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000d1a6eb0 R08: ffffffff83b7573b R09: 1ffffffff28a892d R10: dffffc0000000000 R11: fffffbfff28a892e R12: 1ffff1100b25690d R13: dffffc0000000000 R14: 00000000ffffffe2 R15: ffff888033f59e10 FS: 00007f9eff0936c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa1c7fd4000 CR3: 00000000595e2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: get_more_blocks fs/direct-io.c:648 [inline] do_direct_IO fs/direct-io.c:936 [inline] __blockdev_direct_IO+0x1c87/0x4890 fs/direct-io.c:1243 ocfs2_direct_IO+0x255/0x2c0 fs/ocfs2/aops.c:2445 generic_file_direct_write+0x1e6/0x400 mm/filemap.c:4112 __generic_file_write_iter+0x126/0x230 mm/filemap.c:4276 ocfs2_file_write_iter+0x19af/0x2180 fs/ocfs2/file.c:2469 iter_file_splice_write+0xbfa/0x1510 fs/splice.c:743 do_splice_from fs/splice.c:941 [inline] direct_splice_actor+0x11b/0x220 fs/splice.c:1164 splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x289/0x3e0 fs/splice.c:1233 do_sendfile+0x564/0x8a0 fs/read_write.c:1363 __do_sys_sendfile64 fs/read_write.c:1424 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1410 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: 0033:0x7f9efe18cde9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9eff093038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f9efe3a5fa0 RCX: 00007f9efe18cde9 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000000000009 RBP: 00007f9efe20e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000800000009 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9efe3a5fa0 R15: 00007ffc84ed0c78 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_dio_wr_get_block+0x18bd/0x18d0 fs/ocfs2/aops.c:2259 Code: 02 8f 4c 89 f2 e8 13 7d 76 01 e9 3a f6 ff ff e8 99 d0 50 08 e8 b4 5b 0a fe 90 0f 0b e8 ac 5b 0a fe 90 0f 0b e8 a4 5b 0a fe 90 <0f> 0b e8 9c 5b 0a fe 90 0f 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 RSP: 0018:ffffc9000d1a6cc0 EFLAGS: 00010293 RAX: ffffffff83b75c9c RBX: 0000000000001000 RCX: ffff8880003b2440 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2 RBP: ffffc9000d1a6eb0 R08: ffffffff83b7573b R09: 1ffffffff28a892d R10: dffffc0000000000 R11: fffffbfff28a892e R12: 1ffff1100b25690d R13: dffffc0000000000 R14: 00000000ffffffe2 R15: ffff888033f59e10 FS: 00007f9eff0936c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1bd36e8000 CR3: 00000000595e2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.