loop0: detected capacity change from 0 to 64
hfs: new node 4 already hashed?
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5230 at fs/hfs/bnode.c:520 hfs_bnode_create+0x40c/0x4c8 fs/hfs/bnode.c:519
Modules linked in:
CPU: 1 PID: 5230 Comm: syz.0.220 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : hfs_bnode_create+0x40c/0x4c8 fs/hfs/bnode.c:519
lr : hfs_bnode_create+0x40c/0x4c8 fs/hfs/bnode.c:519
sp : ffff800021a17180
x29: ffff800021a171a0
 x28: dfff800000000000
 x27: dfff800000000000

x26: 00000000000000f8
 x25: 0000000000000004
 x24: ffff0000d1289a88

x23: 1ffff00004342e44
 x22: 0000000000000004
 x21: ffff0000d2ac8000

x20: 0000000000000004
 x19: ffff0000d2b90a00
 x18: 0000000000000000

x17: 0000000000000000
 x16: ffff8000082d22e0
 x15: 0000000000000002

x14: 00000000ffffffff
 x13: 0000000000000001 x12: 0000000000080000
x11: 0000000000005d82 x10: ffff8000229fa000 x9 : 1d874fb5763f0600
x8 : 1d874fb5763f0600 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800021a16c58 x4 : ffff8000151a4820 x3 : ffff80000a8456cc
x2 : ffff00019f6ddd10 x1 : 0000000100000000 x0 : 000000000000001f
Call trace:
 hfs_bnode_create+0x40c/0x4c8 fs/hfs/bnode.c:519
 hfs_bmap_alloc+0x4f4/0x59c fs/hfs/btree.c:291
 hfs_bnode_split+0xc8/0xbb8 fs/hfsplus/brec.c:245
 hfs_brec_insert+0x2e8/0x96c fs/hfs/brec.c:102
 hfs_cat_create+0x470/0x758 fs/hfs/catalog.c:131
 hfs_create+0x6c/0xe0 fs/hfs/dir.c:202
 lookup_open fs/namei.c:3482 [inline]
 open_last_lookups fs/namei.c:3550 [inline]
 path_openat+0x112c/0x2680 fs/namei.c:3780
 do_filp_open+0x174/0x344 fs/namei.c:3810
 do_sys_openat2+0x128/0x3d8 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+0x120/0x154 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+0x58/0x138 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: 5110
hardirqs last  enabled at (5109): [<ffff800008308424>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261
hardirqs last disabled at (5110): [<ffff80001195b770>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (5016): [<ffff8000080309e0>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (5014): [<ffff8000080309ac>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernel BUG at fs/hfs/bnode.c:565!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 5230 Comm: syz.0.220 Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : hfs_bnode_put+0x358/0x364 fs/hfs/bnode.c:565
lr : hfs_bnode_put+0x358/0x364 fs/hfs/bnode.c:565
sp : ffff800021a17400
x29: ffff800021a17400 x28: dfff800000000000 x27: ffff0000d2b90a00
x26: ffff0000d2b91e00 x25: ffff800021a17648 x24: 1fffe0001a572140
x23: ffff0000d2ac8000 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000d2b90a80 x19: ffff0000d2b90a00 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082d0e30 x15: 0000000000000002
x14: 00000000000000ff x13: 0000030000000000 x12: 0000000000080000
x11: 000000000007ffff x10: ffff8000229fa000 x9 : ffff800008f84dd4
x8 : 0000000000080000 x7 : 0083000231656c69 x6 : 6605000000000025
x5 : ffff0000d465fb4d x4 : ffff0000f7cd5634 x3 : ffff800008f84ad8
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 hfs_bnode_put+0x358/0x364 fs/hfs/bnode.c:565
 hfs_brec_insert+0x678/0x96c fs/hfs/brec.c:162
 hfs_cat_create+0x470/0x758 fs/hfs/catalog.c:131
 hfs_create+0x6c/0xe0 fs/hfs/dir.c:202
 lookup_open fs/namei.c:3482 [inline]
 open_last_lookups fs/namei.c:3550 [inline]
 path_openat+0x112c/0x2680 fs/namei.c:3780
 do_filp_open+0x174/0x344 fs/namei.c:3810
 do_sys_openat2+0x128/0x3d8 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+0x120/0x154 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+0x58/0x138 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: aa1403e0 97e548bb 17ffffce 97d472b2 (d4210000) 
---[ end trace 0000000000000000 ]---