EXT4-fs (loop2): failed to initialize mballoc (-12) EXT4-fs (loop2): mount failed loop2: detected capacity change from 0 to 64 hfs: new node 0 already hashed? ------------[ cut here ]------------ 1 WARNING: fs/hfs/bnode.c:520 at hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:520, CPU#0: syz.2.1239/18740 Modules linked in: CPU: 0 UID: 0 PID: 18740 Comm: syz.2.1239 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 RIP: 0010:hfs_bnode_create+0x45a/0x4e0 fs/hfs/bnode.c:520 Code: 87 8b 89 ee e8 07 57 7d fe e9 d6 fc ff ff e8 ad 29 1b ff 4c 89 ef e8 f5 64 9a 08 48 c7 c7 20 fb 87 8b 89 ee e8 e7 56 7d fe 90 <0f> 0b 90 eb b0 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c dd fb ff ff RSP: 0018:ffffc90004dcf408 EFLAGS: 00010246 RAX: 000000000000001f RBX: ffff8880408dc000 RCX: 3d51dfaa49239200 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffff520009b9e31 R12: 0000000000000000 R13: ffff8880408dc0d0 R14: ffff8880610e1600 R15: dffffc0000000000 FS: 00007f14051b66c0(0000) GS:ffff888125c49000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000330a6000 CR4: 00000000003526f0 Call Trace: hfs_bmap_alloc+0x5bd/0x650 fs/hfs/btree.c:326 hfs_bnode_split+0xd4/0x1070 fs/hfsplus/brec.c:-1 hfs_brec_insert+0x3a4/0xc80 fs/hfs/brec.c:102 hfs_cat_create+0x3b1/0x810 fs/hfs/catalog.c:118 hfs_create+0x78/0xe0 fs/hfs/dir.c:196 lookup_open fs/namei.c:4508 [inline] open_last_lookups fs/namei.c:4608 [inline] path_openat+0x1344/0x3850 fs/namei.c:4860 do_file_open+0x23e/0x4a0 fs/namei.c:4892 do_sys_openat2+0x115/0x200 fs/open.c:1368 do_sys_open fs/open.c:1374 [inline] __do_sys_openat fs/open.c:1390 [inline] __se_sys_openat fs/open.c:1385 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1385 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1406f5de59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f14051b6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f14071e5fa0 RCX: 00007f1406f5de59 RDX: 000000000000275a RSI: 00002000000000c0 RDI: ffffffffffffff9c RBP: 00007f1406ff3e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f14071e6038 R14: 00007f14071e5fa0 R15: 00007fff96b6de38