loop0: detected capacity change from 0 to 1024
hfsplus: new node 0 already hashed?
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5134 at fs/hfsplus/bnode.c:642 hfsplus_bnode_create+0x404/0x4c8 fs/hfsplus/bnode.c:641
Modules linked in:
CPU: 0 PID: 5134 Comm: syz.0.16 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+0x404/0x4c8 fs/hfsplus/bnode.c:641
lr : hfsplus_bnode_create+0x404/0x4c8 fs/hfsplus/bnode.c:641
sp : ffff80001f996db0
x29: ffff80001f996dc0 x28: 0000000000000000 x27: dfff800000000000
x26: 0000000000000080 x25: dfff800000000000 x24: 0000000000000000
x23: ffff0000d3895088 x22: ffff0000d3895000 x21: ffff0000c9e22000
x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000001
x17: 0000000000000000 x16: ffff80001125a830 x15: 00000000ffffffff
x14: 0000000000000001 x13: 1fffe000341f1cd7 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 600139e213f18c00
x8 : 600139e213f18c00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001f9966b8 x4 : ffff80001437f3e0 x3 : ffff80000a75e82c
x2 : ffff0001a0f82d50 x1 : 0000000100000000 x0 : 0000000000000023
Call trace:
 hfsplus_bnode_create+0x404/0x4c8 fs/hfsplus/bnode.c:641
 hfsplus_bmap_alloc+0x614/0x944 fs/hfsplus/btree.c:420
 hfs_bnode_split+0xd0/0xbb0 fs/hfsplus/brec.c:245
 hfsplus_brec_insert+0x304/0xac0 fs/hfsplus/brec.c:100
 hfsplus_create_cat+0x34c/0xe24 fs/hfsplus/catalog.c:292
 hfsplus_fill_super+0xf78/0x1664 fs/hfsplus/super.c:579
 mount_bdev+0x264/0x358 fs/super.c:1400
 hfsplus_mount+0x44/0x58 fs/hfsplus/super.c:660
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x228/0x810 fs/namespace.c:3034
 path_mount+0x5bc/0x1008 fs/namespace.c:3364
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount fs/namespace.c:3562 [inline]
 __arm64_sys_mount+0x514/0x5f0 fs/namespace.c:3562
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 4262
hardirqs last  enabled at (4261): [<ffff8000082fb428>] __up_console_sem+0xb4/0xfc kernel/printk/printk.c:257
hardirqs last disabled at (4262): [<ffff8000112561f8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (4106): [<ffff80000819fb84>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (4106): [<ffff80000819fb84>] handle_softirqs+0xa40/0xbe4 kernel/softirq.c:604
softirqs last disabled at (4021): [<ffff8000081a0188>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (4021): [<ffff8000081a0188>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (4021): [<ffff8000081a0188>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (4021): [<ffff8000081a0188>] __irq_exit_rcu+0x240/0x43c kernel/softirq.c:659
---[ end trace e23f0babc8c90de5 ]---