loop9: detected capacity change from 0 to 1024 ------------[ cut here ]------------ kernel BUG at fs/hfsplus/bnode.c:675! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 7721 Comm: syz.9.216 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:hfsplus_bnode_put+0x515/0x590 fs/hfsplus/bnode.c:675 Code: 8b 41 b8 a2 02 00 00 49 c7 c1 20 92 01 8b 50 53 41 54 e8 9e 0e 1e 02 48 83 c4 18 4c 8b 3c 24 e9 42 fb ff ff e8 3c a3 2c ff 90 <0f> 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 35 ff ff ff 4c 89 ff RSP: 0018:ffffc90004047390 EFLAGS: 00010283 RAX: ffffffff82920a04 RBX: 1ffff11006418800 RCX: 0000000000080000 RDX: ffffc90005882000 RSI: 00000000000065a6 RDI: 00000000000065a7 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1006418819 R12: ffff8880320c40c0 R13: ffff8880320c4000 R14: dffffc0000000000 R15: ffff8880556da000 FS: 00007f7758b8e6c0(0000) GS:ffff888126ef4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3a2881 CR3: 000000005a426000 CR4: 00000000003526f0 Call Trace: hfsplus_bmap_alloc+0x70f/0xad0 fs/hfsplus/btree.c:420 hfs_bnode_split+0xcc/0x1060 fs/hfsplus/brec.c:245 hfsplus_brec_insert+0x3b6/0xd30 fs/hfsplus/brec.c:100 hfsplus_create_cat+0xa14/0x1130 fs/hfsplus/catalog.c:308 hfsplus_link+0x3ee/0x6b0 fs/hfsplus/dir.c:342 vfs_link+0x4ed/0x6e0 fs/namei.c:4941 do_linkat+0x272/0x560 fs/namei.c:5011 __do_sys_linkat fs/namei.c:5039 [inline] __se_sys_linkat fs/namei.c:5036 [inline] __x64_sys_linkat+0xd4/0xf0 fs/namei.c:5036 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f775a92f749 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:00007f7758b8e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000109 RAX: ffffffffffffffda RBX: 00007f775ab85fa0 RCX: 00007f775a92f749 RDX: ffffffffffffff9c RSI: 0000200000000080 RDI: 0000000000000006 RBP: 00007f775a9b3f91 R08: 0000000000001000 R09: 0000000000000000 R10: 0000200000000100 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f775ab86038 R14: 00007f775ab85fa0 R15: 00007ffcce9dcf68 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfsplus_bnode_put+0x515/0x590 fs/hfsplus/bnode.c:675 Code: 8b 41 b8 a2 02 00 00 49 c7 c1 20 92 01 8b 50 53 41 54 e8 9e 0e 1e 02 48 83 c4 18 4c 8b 3c 24 e9 42 fb ff ff e8 3c a3 2c ff 90 <0f> 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 35 ff ff ff 4c 89 ff RSP: 0018:ffffc90004047390 EFLAGS: 00010283 RAX: ffffffff82920a04 RBX: 1ffff11006418800 RCX: 0000000000080000 RDX: ffffc90005882000 RSI: 00000000000065a6 RDI: 00000000000065a7 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1006418819 R12: ffff8880320c40c0 R13: ffff8880320c4000 R14: dffffc0000000000 R15: ffff8880556da000 FS: 00007f7758b8e6c0(0000) GS:ffff888126ef4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3a2881 CR3: 000000005a426000 CR4: 00000000003526f0