hfs: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 0 PID: 41 at fs/hfs/bnode.c:422 hfs_bnode_create+0x430/0x4e4 fs/hfs/bnode.c:421
Modules linked in:
CPU: 0 PID: 41 Comm: kworker/u8:2 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: writeback wb_workfn (flush-7:0)
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : hfs_bnode_create+0x430/0x4e4 fs/hfs/bnode.c:421
lr : hfs_bnode_create+0x430/0x4e4 fs/hfs/bnode.c:421
sp : ffff8000952a6ab0
x29: ffff8000952a6ac0 x28: dfff800000000000 x27: dfff800000000000
x26: 000000000000016c x25: ffff0000c1b5f588 x24: 0000000000000000
x23: 0000000000000000 x22: ffff0000d6ed60e0 x21: ffff0000d6ed6000
x20: 0000000000000000 x19: ffff0000c1b5f500 x18: 0000000000000008
x17: 0000000000000000 x16: ffff80008ae89e3c x15: 0000000000000001
x14: 1ffff00012a54ca8 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000001 x10: 0000000000ff0100 x9 : c30ce180aa136700
x8 : c30ce180aa136700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000952a6238 x4 : ffff80008ef95100 x3 : ffff800082f22378
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000001f
Call trace:
 hfs_bnode_create+0x430/0x4e4 fs/hfs/bnode.c:421
 hfs_bmap_alloc+0x5a4/0x66c fs/hfs/btree.c:291
 hfs_btree_inc_height+0xf8/0x9d0 fs/hfs/brec.c:471
 hfs_brec_insert+0x580/0x97c fs/hfs/brec.c:148
 __hfs_ext_write_extent+0x240/0x468 fs/hfs/extent.c:124
 hfs_ext_write_extent+0x148/0x1c0 fs/hfs/extent.c:144
 hfs_write_inode+0xc0/0xc1c fs/hfs/inode.c:427
 write_inode fs/fs-writeback.c:1498 [inline]
 __writeback_single_inode+0x5f0/0x1548 fs/fs-writeback.c:1715
 writeback_sb_inodes+0x700/0x101c fs/fs-writeback.c:1941
 wb_writeback+0x404/0x1048 fs/fs-writeback.c:2117
 wb_do_writeback fs/fs-writeback.c:2264 [inline]
 wb_workfn+0x394/0x104c fs/fs-writeback.c:2304
 process_one_work+0x7b8/0x15d4 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3348 [inline]
 worker_thread+0x938/0xef4 kernel/workqueue.c:3429
 kthread+0x288/0x310 kernel/kthread.c:388
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
irq event stamp: 597412
hardirqs last  enabled at (597411): [<ffff80008037430c>] __up_console_sem kernel/printk/printk.c:341 [inline]
hardirqs last  enabled at (597411): [<ffff80008037430c>] __console_unlock kernel/printk/printk.c:2731 [inline]
hardirqs last  enabled at (597411): [<ffff80008037430c>] console_unlock+0x17c/0x3d4 kernel/printk/printk.c:3050
hardirqs last disabled at (597412): [<ffff80008ae85288>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470
softirqs last  enabled at (596922): [<ffff800089081740>] neigh_managed_work+0x1e0/0x21c net/core/neighbour.c:1618
softirqs last disabled at (596918): [<ffff8000890815a0>] neigh_managed_work+0x40/0x21c net/core/neighbour.c:1613
---[ 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: 0 PID: 41 Comm: kworker/u8:2 Tainted: G        W          6.9.0-rc7-syzkaller-gfda5695d692c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: writeback wb_workfn (flush-7:0)
pstate: 80400005 (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 : ffff8000952a6bd0
x29: ffff8000952a6bd0 x28: dfff800000000000 x27: ffff700012a54d90
x26: 1fffe0001addac03 x25: 0000000000000200 x24: 1fffe0001836bea0
x23: dfff800000000000 x22: ffff0000d6ed6000 x21: ffff0000c1b5f580
x20: 0000000000000000 x19: ffff0000c1b5f500 x18: 0000000000000008
x17: 0000000000000000 x16: ffff800080288ddc x15: 0000000000000001
x14: 1fffe0001836beb0 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001836beb1 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000c2600000 x7 : ffff80008adc9a6c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008119e728
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 hfs_bnode_put+0x318/0x324 fs/hfs/bnode.c:467
 hfs_btree_inc_height+0x4c0/0x9d0 fs/hfs/brec.c:525
 hfs_brec_insert+0x580/0x97c fs/hfs/brec.c:148
 __hfs_ext_write_extent+0x240/0x468 fs/hfs/extent.c:124
 hfs_ext_write_extent+0x148/0x1c0 fs/hfs/extent.c:144
 hfs_write_inode+0xc0/0xc1c fs/hfs/inode.c:427
 write_inode fs/fs-writeback.c:1498 [inline]
 __writeback_single_inode+0x5f0/0x1548 fs/fs-writeback.c:1715
 writeback_sb_inodes+0x700/0x101c fs/fs-writeback.c:1941
 wb_writeback+0x404/0x1048 fs/fs-writeback.c:2117
 wb_do_writeback fs/fs-writeback.c:2264 [inline]
 wb_workfn+0x394/0x104c fs/fs-writeback.c:2304
 process_one_work+0x7b8/0x15d4 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3348 [inline]
 worker_thread+0x938/0xef4 kernel/workqueue.c:3429
 kthread+0x288/0x310 kernel/kthread.c:388
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Code: aa1503e0 97e2c44a 17ffffd5 97cecbfe (d4210000) 
---[ end trace 0000000000000000 ]---