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. (syz.0.0,5331,0):ocfs2_dio_end_io:2424 ERROR: Direct IO failed, bytes = -28 loop0: detected capacity change from 32768 to 26624 OCFS2: ERROR (device loop0): int ocfs2_validate_extent_block(struct super_block *, struct buffer_head *): Extent block #10650 has bad signature On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. OCFS2: File system is now read-only. (syz.0.0,5331,0):ocfs2_num_free_extents:963 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_reserve_blocks_for_rec_trunc:5670 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_remove_btree_range:5738 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_remove_inode_range:1911 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_reflink_remap_extent:4539 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_reflink_remap_blocks:4687 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_remap_file_range:2743 ERROR: status = -30 (syz.0.0,5331,0):ocfs2_find_subtree_root:1777 ERROR: bug expression: i > left->p_tree_depth (syz.0.0,5331,0):ocfs2_find_subtree_root:1777 ERROR: Owner 17059, left depth 1, right depth 1 left leaf blk 10643, right leaf blk 10643 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/alloc.c:1777! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5331 Comm: syz.0.0 Not tainted 6.12.0-syzkaller-07749-g28eb75e178d3 #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_find_subtree_root+0x5ab/0x5c0 fs/ocfs2/alloc.c:1771 Code: 79 1c 12 8e ba f1 06 00 00 48 c7 c1 80 75 48 8c 4c 8b 44 24 20 45 89 f1 ff 33 41 57 ff 74 24 28 e8 0a 11 22 00 48 83 c4 18 90 <0f> 0b e8 4e 26 1c fe 90 0f 0b e8 26 cb 4d 08 66 0f 1f 44 00 00 90 RSP: 0018:ffffc9000cfde400 EFLAGS: 00010296 RAX: accbd5a5da429000 RBX: ffff888043fadaf8 RCX: accbd5a5da429000 RDX: ffffc9000e832000 RSI: 00000000000020f0 RDI: 00000000000020f1 RBP: ffffc9000cfde4f0 R08: ffffffff8174e83c R09: 1ffff920019fbbec R10: dffffc0000000000 R11: fffff520019fbbed R12: 0000000000000001 R13: 0000000000000010 R14: 0000000000000001 R15: 0000000000002993 FS: 00007fa7d46ce6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562531eace38 CR3: 0000000040dea000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_insert_path+0xad7/0x12c0 fs/ocfs2/alloc.c:4232 ocfs2_do_insert_extent+0xae1/0x10d0 fs/ocfs2/alloc.c:4334 ocfs2_insert_extent+0x1377/0x2270 fs/ocfs2/alloc.c:4757 ocfs2_add_clusters_in_btree+0x741/0x1370 fs/ocfs2/alloc.c:4849 ocfs2_add_inode_data+0xcf/0x120 fs/ocfs2/file.c:550 ocfs2_write_cluster fs/ocfs2/aops.c:1134 [inline] ocfs2_write_cluster_by_desc+0x54c/0x20b0 fs/ocfs2/aops.c:1239 ocfs2_write_begin_nolock+0x3a2f/0x4ec0 fs/ocfs2/aops.c:1815 ocfs2_write_begin+0x205/0x3a0 fs/ocfs2/aops.c:1902 generic_perform_write+0x344/0x6d0 mm/filemap.c:4056 ocfs2_file_write_iter+0x17b1/0x1f50 fs/ocfs2/file.c:2467 new_sync_write fs/read_write.c:586 [inline] vfs_write+0xaeb/0xd30 fs/read_write.c:679 ksys_write+0x18f/0x2b0 fs/read_write.c:731 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: 0033:0x7fa7d397e819 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:00007fa7d46ce038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fa7d3b35fa0 RCX: 00007fa7d397e819 RDX: 00000000000000c9 RSI: 00000000200003c0 RDI: 0000000000000005 RBP: 00007fa7d39f175e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa7d3b35fa0 R15: 00007fff5b6f39a8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_find_subtree_root+0x5ab/0x5c0 fs/ocfs2/alloc.c:1771 Code: 79 1c 12 8e ba f1 06 00 00 48 c7 c1 80 75 48 8c 4c 8b 44 24 20 45 89 f1 ff 33 41 57 ff 74 24 28 e8 0a 11 22 00 48 83 c4 18 90 <0f> 0b e8 4e 26 1c fe 90 0f 0b e8 26 cb 4d 08 66 0f 1f 44 00 00 90 RSP: 0018:ffffc9000cfde400 EFLAGS: 00010296 RAX: accbd5a5da429000 RBX: ffff888043fadaf8 RCX: accbd5a5da429000 RDX: ffffc9000e832000 RSI: 00000000000020f0 RDI: 00000000000020f1 RBP: ffffc9000cfde4f0 R08: ffffffff8174e83c R09: 1ffff920019fbbec R10: dffffc0000000000 R11: fffff520019fbbed R12: 0000000000000001 R13: 0000000000000010 R14: 0000000000000001 R15: 0000000000002993 FS: 00007fa7d46ce6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562531eace38 CR3: 0000000040dea000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400