syzbot

memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4996 'syz-executor380'
loop0: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
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WARNING: CPU: 0 PID: 4996 at fs/hfsplus/bnode.c:573 hfsplus_bnode_create+0x3b1/0x440 fs/hfsplus/bnode.c:572
Modules linked in:
CPU: 0 PID: 4996 Comm: syz-executor380 Not tainted 6.4.0-rc5-syzkaller-00016-ga4d7d7011219 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:hfsplus_bnode_create+0x3b1/0x440 fs/hfsplus/bnode.c:573
Code: 8a 44 89 e6 e8 e0 34 4b 08 e9 7c fd ff ff e8 e6 75 29 ff 4c 89 ff e8 fe 45 57 08 48 c7 c7 80 b8 ff 8a 44 89 e6 e8 bf 34 4b 08 <0f> 0b eb b5 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 89 fc ff ff 48 89
RSP: 0018:ffffc900039cefd8 EFLAGS: 00010246
RAX: 0000000000000023 RBX: ffff888012a93800 RCX: 4a8843874786b000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff816f004c R09: fffff52000739db1
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888018e62000 R15: ffff888018e620e0
FS:  0000555555a8a300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdf9dde000 CR3: 0000000022c64000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 hfsplus_bmap_alloc+0x59a/0x640 fs/hfsplus/btree.c:415
 hfs_bnode_split+0xde/0x1110 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x3a6/0xdd0 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x49c/0x1bb0 fs/hfsplus/catalog.c:292
 hfsplus_fill_super+0x13ea/0x1c90 fs/hfsplus/super.c:560
 mount_bdev+0x2d0/0x3f0 fs/super.c:1380
 legacy_get_tree+0xef/0x190 fs/fs_context.c:610
 vfs_get_tree+0x8c/0x270 fs/super.c:1510
 do_new_mount+0x28f/0xae0 fs/namespace.c:3039
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7feba64b2eba
Code: 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdf9ddd008 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007feba64b2eba
RDX: 0000000020000040 RSI: 0000000020000080 RDI: 00007ffdf9ddd020
RBP: 00007ffdf9ddd020 R08: 00007ffdf9ddd060 R09: 000000000000064b
R10: 0000000000208010 R11: 0000000000000286 R12: 0000000000000004
R13: 0000555555a8a2c0 R14: 0000000000208010 R15: 00007ffdf9ddd060
 </TASK>