hfs: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6506 at fs/hfs/bnode.c:432 hfs_bnode_create+0x428/0x4ec fs/hfs/bnode.c:431
Modules linked in:
CPU: 1 PID: 6506 Comm: syz-executor.4 Not tainted 5.15.152-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : hfs_bnode_create+0x428/0x4ec fs/hfs/bnode.c:431
lr : hfs_bnode_create+0x428/0x4ec fs/hfs/bnode.c:431
sp : ffff80001d687510
x29: ffff80001d687520 x28: ffff000167b7d000 x27: 00000000000000f8
x26: ffff000167b7d0f8 x25: dfff800000000000 x24: 1ffff00003ad0eb8
x23: 0000000000000000 x22: ffff0000d229e0e0 x21: ffff0000d229e000
x20: 0000000000000000 x19: ffff0000c1818e00 x18: 1fffe0003690298e
x17: 1fffe0003690298e x16: ffff80001197c3d4 x15: ffff8000149aec00
x14: 1ffff0000292206a x13: dfff800000000000 x12: 0000000000040000
x11: 0000000000010f63 x10: ffff80002295a000 x9 : 43a567f4525dd600
x8 : 43a567f4525dd600 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a9623a0
x2 : ffff0001b4814d10 x1 : 0000000100000000 x0 : 000000000000001f
Call trace:
 hfs_bnode_create+0x428/0x4ec fs/hfs/bnode.c:431
 hfs_bmap_alloc+0x5c0/0x6b4 fs/hfs/btree.c:288
 hfs_bnode_split+0xcc/0xd88 fs/hfsplus/brec.c:245
 hfs_brec_insert+0x2bc/0x97c fs/hfs/brec.c:102
 hfs_cat_create+0x340/0x844 fs/hfs/catalog.c:118
 hfs_mkdir+0x70/0xe4 fs/hfs/dir.c:232
 vfs_mkdir+0x350/0x514 fs/namei.c:4065
 do_mkdirat+0x20c/0x610 fs/namei.c:4090
 __do_sys_mkdirat fs/namei.c:4105 [inline]
 __se_sys_mkdirat fs/namei.c:4103 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 2862
hardirqs last  enabled at (2861): [<ffff80001197a868>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (2861): [<ffff80001197a868>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (2862): [<ffff800011977a60>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (2780): [<ffff8000080310b4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (2778): [<ffff800008031080>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace e83f995a7c4ae198 ]---
------------[ cut here ]------------
kernel BUG at fs/hfs/bnode.c:479!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 6506 Comm: syz-executor.4 Tainted: G        W         5.15.152-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : hfs_bnode_put+0x414/0x420 fs/hfs/bnode.c:479
lr : hfs_bnode_put+0x414/0x420 fs/hfs/bnode.c:479
sp : ffff80001d6877b0
x29: ffff80001d6877b0 x28: 0000000000000036 x27: ffff0000c1818e00
x26: ffff0000c1818e00 x25: ffff0000d229e000 x24: 1fffe000183031c0
x23: dfff800000000000 x22: ffff0000d229e000 x21: ffff0000c1818e80
x20: 0000000000000000 x19: ffff0000c1818e00 x18: 0000000000000000
x17: 0000000000000002 x16: ffff800008fceb08 x15: 00000000000000ff
x14: ffff0000c80f1b40 x13: 0000000020000000 x12: 0000000000040000
x11: 0000000000027696 x10: ffff80002295a000 x9 : 0000000000027697
x8 : ffff800008fcd414 x7 : 0000000000000008 x6 : 0000100000000025
x5 : ffff0000cb99504d x4 : ffff000167b7d688 x3 : ffff800008fcd058
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 hfs_bnode_put+0x414/0x420 fs/hfs/bnode.c:479
 hfs_brec_insert+0x648/0x97c fs/hfs/brec.c:162
 hfs_cat_create+0x340/0x844 fs/hfs/catalog.c:118
 hfs_mkdir+0x70/0xe4 fs/hfs/dir.c:232
 vfs_mkdir+0x350/0x514 fs/namei.c:4065
 do_mkdirat+0x20c/0x610 fs/namei.c:4090
 __do_sys_mkdirat fs/namei.c:4105 [inline]
 __se_sys_mkdirat fs/namei.c:4103 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: aa1403e0 97e3fd09 17ffffa5 97d3d537 (d4210000) 
---[ end trace e83f995a7c4ae199 ]---