loop0: detected capacity change from 0 to 32768 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. loop0: detected capacity change from 32768 to 0 (syz.0.0,5335,0):ocfs2_read_virt_blocks:1037 ERROR: status = -5 (syz.0.0,5335,0):ocfs2_read_dir_block:511 ERROR: status = -5 (syz.0.0,5335,0):ocfs2_find_entry_el:728 ERROR: reading directory 66, offset 0 ocfs2: Unknown parameter 's7 BpTͱ"z[C8-#r0BY:[ַJ7!/'Ÿ:TGN* ./bus' loop0: detected capacity change from 0 to 32767 OCFS2: ERROR (device loop0): int ocfs2_validate_inode_block(struct super_block *, struct buffer_head *): Invalid dinode #17059: signature = On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. OCFS2: File system is now read-only. (syz.0.0,5335,0):ocfs2_assign_bh:2417 ERROR: status = -30 (syz.0.0,5335,0):ocfs2_inode_lock_full_nested:2512 ERROR: status = -30 (syz.0.0,5335,0):ocfs2_reflink_inodes_lock:4747 ERROR: status = -30 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/suballoc.c:806! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5335 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 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_reserve_suballoc_bits+0x3f38/0x4640 fs/ocfs2/suballoc.c:806 Code: 78 e9 23 f2 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 82 dd ff ff 4c 89 f7 e8 f3 df 7a fe e9 75 dd ff ff e8 69 b4 13 fe 90 <0f> 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 3c df ff ff 4c 89 ff RSP: 0018:ffffc9000d3adee0 EFLAGS: 00010287 RAX: ffffffff83aad9d7 RBX: ffff888010e9be00 RCX: 0000000000100000 RDX: ffffc9000ddda000 RSI: 0000000000003c26 RDI: 0000000000003c27 RBP: ffffc9000d3ae3b0 R08: ffffffff8f5bb137 R09: 1ffffffff1eb7626 R10: dffffc0000000000 R11: fffffbfff1eb7627 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880408c4fb8 R15: 00000000ffffffff FS: 00007fbcc0c7d6c0(0000) GS:ffff88808d98a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f345101f000 CR3: 000000001154e000 CR4: 0000000000352ef0 Call Trace: ocfs2_reserve_cluster_bitmap_bits fs/ocfs2/suballoc.c:1134 [inline] ocfs2_reserve_clusters_with_limit+0x2fb/0xba0 fs/ocfs2/suballoc.c:1179 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:674 [inline] ocfs2_reserve_suballoc_bits+0x6eb/0x4640 fs/ocfs2/suballoc.c:834 ocfs2_reserve_new_metadata_blocks+0x403/0x940 fs/ocfs2/suballoc.c:984 ocfs2_reserve_new_metadata fs/ocfs2/suballoc.c:1027 [inline] ocfs2_lock_allocators+0x29e/0x5c0 fs/ocfs2/suballoc.c:2761 ocfs2_write_begin_nolock+0x2279/0x4340 fs/ocfs2/aops.c:1719 ocfs2_write_begin+0x1bb/0x310 fs/ocfs2/aops.c:1884 generic_perform_write+0x2c5/0x900 mm/filemap.c:4224 ocfs2_file_write_iter+0x157a/0x1d10 fs/ocfs2/file.c:2469 iter_file_splice_write+0x972/0x10e0 fs/splice.c:738 do_splice_from fs/splice.c:938 [inline] direct_splice_actor+0xfe/0x160 fs/splice.c:1161 splice_direct_to_actor+0x5a8/0xcc0 fs/splice.c:1105 do_splice_direct_actor fs/splice.c:1204 [inline] do_splice_direct+0x181/0x270 fs/splice.c:1230 vfs_copy_file_range+0xb03/0x1370 fs/read_write.c:1632 __do_sys_copy_file_range fs/read_write.c:1681 [inline] __se_sys_copy_file_range+0x2fb/0x470 fs/read_write.c:1648 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbcbfd8eec9 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:00007fbcc0c7d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146 RAX: ffffffffffffffda RBX: 00007fbcbffe5fa0 RCX: 00007fbcbfd8eec9 RDX: 000000000000000e RSI: 0000000000000000 RDI: 000000000000000e RBP: 00007fbcbfe11f91 R08: 0000000000000863 R09: 0000000000000000 R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbcbffe6038 R14: 00007fbcbffe5fa0 R15: 00007ffcca1d4e48 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_reserve_suballoc_bits+0x3f38/0x4640 fs/ocfs2/suballoc.c:806 Code: 78 e9 23 f2 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 82 dd ff ff 4c 89 f7 e8 f3 df 7a fe e9 75 dd ff ff e8 69 b4 13 fe 90 <0f> 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 3c df ff ff 4c 89 ff RSP: 0018:ffffc9000d3adee0 EFLAGS: 00010287 RAX: ffffffff83aad9d7 RBX: ffff888010e9be00 RCX: 0000000000100000 RDX: ffffc9000ddda000 RSI: 0000000000003c26 RDI: 0000000000003c27 RBP: ffffc9000d3ae3b0 R08: ffffffff8f5bb137 R09: 1ffffffff1eb7626 R10: dffffc0000000000 R11: fffffbfff1eb7627 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880408c4fb8 R15: 00000000ffffffff FS: 00007fbcc0c7d6c0(0000) GS:ffff88808d98a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbcc0c5c9a0 CR3: 000000001154e000 CR4: 0000000000352ef0