loop0: detected capacity change from 0 to 1024 hfsplus: new node 0 already hashed? ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5324 at fs/hfsplus/bnode.c:579 hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:579 Modules linked in: CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.16.0-rc3-syzkaller-00044-g7595b66ae9de #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:hfsplus_bnode_create+0x461/0x4f0 fs/hfsplus/bnode.c:579 Code: a1 8b 89 ee e8 60 98 8f fe e9 cf fc ff ff e8 b6 56 28 ff 4c 89 ef e8 ee 3d d1 08 48 c7 c7 e0 b2 a1 8b 89 ee e8 40 98 8f fe 90 <0f> 0b 90 eb b0 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c d6 fb ff ff RSP: 0018:ffffc9000d41ed00 EFLAGS: 00010246 RAX: 0000000000000023 RBX: ffff88801bf0a000 RCX: 5ae978819b598000 RDX: ffffc9000deba000 RSI: 000000000000665d RDI: 000000000000665e RBP: 0000000000000000 R08: ffffc9000d41ea27 R09: 1ffff92001a83d44 R10: dffffc0000000000 R11: fffff52001a83d45 R12: 0000000000000000 R13: ffff88801bf0a0e0 R14: ffff888032896000 R15: dffffc0000000000 FS: 00007f358018f6c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007feea1206000 CR3: 0000000043233000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_bmap_alloc+0x5af/0x640 fs/hfsplus/btree.c:415 hfs_btree_inc_height+0xf6/0xb60 fs/hfsplus/brec.c:475 hfsplus_brec_insert+0x12d/0xcc0 fs/hfsplus/brec.c:75 __hfsplus_ext_write_extent+0x353/0x5b0 fs/hfsplus/extents.c:107 __hfsplus_ext_cache_extent+0x89/0xe30 fs/hfsplus/extents.c:186 hfsplus_ext_read_extent fs/hfsplus/extents.c:218 [inline] hfsplus_file_extend+0x444/0x1990 fs/hfsplus/extents.c:462 hfsplus_get_block+0x411/0x1530 fs/hfsplus/extents.c:245 get_more_blocks fs/direct-io.c:648 [inline] do_direct_IO fs/direct-io.c:936 [inline] __blockdev_direct_IO+0x16dd/0x33d0 fs/direct-io.c:1243 blockdev_direct_IO include/linux/fs.h:3477 [inline] hfsplus_direct_IO+0x119/0x220 fs/hfsplus/inode.c:129 generic_file_direct_write+0x1d8/0x3e0 mm/filemap.c:4046 __generic_file_write_iter+0x11d/0x230 mm/filemap.c:4215 generic_file_write_iter+0x10f/0x540 mm/filemap.c:4255 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x54b/0xa90 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 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: 0033:0x7f357f38e929 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:00007f358018f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f357f5b5fa0 RCX: 00007f357f38e929 RDX: 0000000000042400 RSI: 0000200000000200 RDI: 0000000000000005 RBP: 00007f357f410b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f357f5b5fa0 R15: 00007fff3e024288