hfsplus: new node 0 already hashed?
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WARNING: CPU: 0 PID: 6985 at fs/hfsplus/bnode.c:631 hfsplus_bnode_create+0x41c/0x4d8 fs/hfsplus/bnode.c:630
Modules linked in:
CPU: 0 PID: 6985 Comm: syz.1.398 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : hfsplus_bnode_create+0x41c/0x4d8 fs/hfsplus/bnode.c:630
lr : hfsplus_bnode_create+0x41c/0x4d8 fs/hfsplus/bnode.c:630
sp : ffff800021556de0
x29: ffff800021556e00 x28: dfff800000000000 x27: dfff800000000000
x26: 0000000000000000 x25: 00000000000000f8 x24: ffff0000d23a0a88
x23: 0000000000000080 x22: ffff0000d23a0a00 x21: ffff0000d95c0000
x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082d92bc x15: 0000000000000002
x14: 0000000000000001 x13: 1ffff000042aad24 x12: 0000000000080000
x11: 000000000001076e x10: ffff800021e0a000 x9 : be1b8527e94faa00
x8 : be1b8527e94faa00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000215568b8 x4 : ffff800015304cc0 x3 : ffff80000a890350
x2 : ffff00019f531d10 x1 : 0000000100000000 x0 : 0000000000000023
Call trace:
 hfsplus_bnode_create+0x41c/0x4d8 fs/hfsplus/bnode.c:630
 hfsplus_bmap_alloc+0x5b4/0x8e8 fs/hfsplus/btree.c:421
 hfs_btree_inc_height+0x108/0x900 fs/hfsplus/brec.c:475
 hfsplus_brec_insert+0x118/0xac0 fs/hfsplus/brec.c:75
 hfsplus_create_attr+0x3b8/0x4ec fs/hfsplus/attributes.c:252
 __hfsplus_setxattr+0x96c/0x1a58 fs/hfsplus/xattr.c:358
 hfsplus_setxattr+0xdc/0x12c fs/hfsplus/xattr.c:438
 hfsplus_security_setxattr+0x54/0x6c fs/hfsplus/xattr_security.c:31
 __vfs_setxattr+0x384/0x3a0 fs/xattr.c:182
 __vfs_setxattr_noperm+0x120/0x564 fs/xattr.c:216
 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277
 vfs_setxattr+0x158/0x2ac fs/xattr.c:309
 do_setxattr fs/xattr.c:594 [inline]
 setxattr+0x258/0x2d8 fs/xattr.c:617
 path_setxattr+0x130/0x260 fs/xattr.c:636
 __do_sys_lsetxattr fs/xattr.c:659 [inline]
 __se_sys_lsetxattr fs/xattr.c:655 [inline]
 __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:655
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 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: 95342
hardirqs last  enabled at (95341): [<ffff80000830fac4>] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:261
hardirqs last disabled at (95342): [<ffff800011a33e5c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (95210): [<ffff800008030954>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (95208): [<ffff800008030920>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---