hfs: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6158 at fs/hfs/bnode.c:422 hfs_bnode_create+0x428/0x4dc fs/hfs/bnode.c:421
Modules linked in:
CPU: 1 PID: 6158 Comm: syz.0.392 Not tainted 6.1.123-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : hfs_bnode_create+0x428/0x4dc fs/hfs/bnode.c:421
lr : hfs_bnode_create+0x428/0x4dc fs/hfs/bnode.c:421
sp : ffff800021f17090
x29: ffff800021f170a0 x28: dfff800000000000 x27: dfff800000000000
x26: 0000000000000100 x25: ffff0000cf5fd088 x24: 0000000000000001
x23: 0000000000000000 x22: ffff0000fa1aa0e0 x21: ffff0000fa1aa000
x20: 0000000000000000 x19: ffff0000cf5fd000 x18: 1fffe000367a0176
x17: ffff800015a8d000 x16: ffff80001232d384 x15: ffff0001b3d00bbc
x14: 1ffff00002b520b2 x13: dfff800000000000 x12: 0000000000080000
x11: 0000000000003d04 x10: ffff80002214a000 x9 : 7629ef51b3b3f000
x8 : 7629ef51b3b3f000 x7 : ffff800008278b14 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000ab3646c
x2 : ffff0001b3d00cd0
 x1 : 0000000100000000 x0 : 000000000000001f
Call trace:
 hfs_bnode_create+0x428/0x4dc fs/hfs/bnode.c:421
 hfs_bmap_alloc+0x59c/0x664 fs/hfs/btree.c:291
 hfs_bnode_split+0xcc/0xd88 fs/hfsplus/brec.c:245
 hfs_brec_insert+0x2bc/0x97c fs/hfs/brec.c:102
 hfs_cat_create+0x4f0/0x844 fs/hfs/catalog.c:131
 hfs_create+0x70/0xe4 fs/hfs/dir.c:202
 lookup_open fs/namei.c:3482 [inline]
 open_last_lookups fs/namei.c:3550 [inline]
 path_openat+0xeac/0x2548 fs/namei.c:3780
 do_filp_open+0x1bc/0x3cc fs/namei.c:3810
 do_sys_openat2+0x128/0x3e0 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 1866
hardirqs last  enabled at (1865): [<ffff800008278bb4>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (1865): [<ffff800008278bb4>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000
hardirqs last disabled at (1866): [<ffff800012329064>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (1766): [<ffff800008030408>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1764): [<ffff8000080303d4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernel BUG at fs/hfs/bnode.c:467!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 6158 Comm: syz.0.392 Tainted: G        W          6.1.123-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : hfs_bnode_put+0x318/0x324 fs/hfs/bnode.c:467
lr : hfs_bnode_put+0x318/0x324 fs/hfs/bnode.c:467
sp : ffff800021f17330
x29: ffff800021f17330 x28: 000000000000008c x27: ffff0000cf5fd000
x26: ffff0000ce49a600 x25: ffff0000fa1aa000 x24: 1fffe00019ebfa00
x23: dfff800000000000 x22: ffff0000fa1aa000 x21: ffff0000cf5fd080
x20: 0000000000000000 x19: ffff0000cf5fd000 x18: ffff800021f17588
x17: 0000000000000000 x16: ffff80001227ac80 x15: 0000000000000002
x14: 00000000000000ff x13: 705f65676173752e x12: 0000000000080000
x11: 000000000007ffff x10: ffff80002214a000 x9 : ffff8000090a3e10
x8 : 0000000000080000 x7 : 0000000000000004 x6 : 0000150000000025
x5 : ffff0000c97a994d x4 : ffff0000f7c37634 x3 : ffff8000090a3b50
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 hfs_bnode_put+0x318/0x324 fs/hfs/bnode.c:467
 hfs_brec_insert+0x648/0x97c fs/hfs/brec.c:162
 hfs_cat_create+0x4f0/0x844 fs/hfs/catalog.c:131
 hfs_create+0x70/0xe4 fs/hfs/dir.c:202
 lookup_open fs/namei.c:3482 [inline]
 open_last_lookups fs/namei.c:3550 [inline]
 path_openat+0xeac/0x2548 fs/namei.c:3780
 do_filp_open+0x1bc/0x3cc fs/namei.c:3810
 do_sys_openat2+0x128/0x3e0 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: aa1503e0 97e34592 17ffffd5 97d13c77 (d4210000) 
---[ end trace 0000000000000000 ]---