==================================================================
BUG: KASAN: use-after-free in memcpy_from_page include/linux/highmem.h:393 [inline]
BUG: KASAN: use-after-free in hfsplus_bnode_read fs/hfsplus/bnode.c:32 [inline]
BUG: KASAN: use-after-free in hfsplus_bnode_read_u16 fs/hfsplus/bnode.c:45 [inline]
BUG: KASAN: use-after-free in hfsplus_bnode_dump+0x3f0/0xa50 fs/hfsplus/bnode.c:305
Read of size 2 at addr ffff00000000103e by task syz.3.109/4779

CPU: 0 PID: 4779 Comm: syz.3.109 Not tainted 6.1.128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x174/0x4c0 mm/kasan/report.c:427
 kasan_report+0xd4/0x130 mm/kasan/report.c:531
 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189
 memcpy+0x48/0x90 mm/kasan/shadow.c:65
 memcpy_from_page include/linux/highmem.h:393 [inline]
 hfsplus_bnode_read fs/hfsplus/bnode.c:32 [inline]
 hfsplus_bnode_read_u16 fs/hfsplus/bnode.c:45 [inline]
 hfsplus_bnode_dump+0x3f0/0xa50 fs/hfsplus/bnode.c:305
 hfsplus_brec_remove+0x3d0/0x4a4 fs/hfsplus/brec.c:229
 __hfsplus_delete_attr+0x1dc/0x3e4 fs/hfsplus/attributes.c:299
 hfsplus_delete_attr+0x2e4/0x41c fs/hfsplus/attributes.c:345
 __hfsplus_setxattr+0x3b8/0x1d10 fs/hfsplus/xattr.c:342
 hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434
 hfsplus_trusted_setxattr+0x54/0x6c fs/hfsplus/xattr_trusted.c:30
 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182
 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216
 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277
 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309
 do_setxattr fs/xattr.c:594 [inline]
 setxattr+0x230/0x294 fs/xattr.c:617
 path_setxattr+0x17c/0x258 fs/xattr.c:636
 __do_sys_setxattr fs/xattr.c:652 [inline]
 __se_sys_setxattr fs/xattr.c:648 [inline]
 __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:648
 __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

The buggy address belongs to the physical page:
page:00000000a89cbfc4 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x40001
flags: 0x1ffc00000000000(node=0|zone=0|lastcpupid=0x7ff)
raw: 01ffc00000000000 fffffc0000000048 fffffc0000000048 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff000000000f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff000000000f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff000000001000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                        ^
 ffff000000001080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff000000001100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
Unable to handle kernel paging request at virtual address ffff60068faa457f
KASAN: maybe wild-memory-access in range [0xffff00347d522bf8-0xffff00347d522bff]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005
  CM = 0, WnR = 0
swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001ab226000
[ffff60068faa457f] pgd=0000000233e74003, p4d=0000000233e74003, pud=0000000000000000
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4779 Comm: syz.3.109 Tainted: G    B              6.1.128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bytes_is_nonzero mm/kasan/generic.c:85 [inline]
pc : memory_is_nonzero mm/kasan/generic.c:102 [inline]
pc : memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
pc : memory_is_poisoned mm/kasan/generic.c:159 [inline]
pc : check_region_inline mm/kasan/generic.c:180 [inline]
pc : kasan_check_range+0x64/0x2a4 mm/kasan/generic.c:189
lr : memcpy+0x48/0x90 mm/kasan/shadow.c:65
sp : ffff8000217c6e00
x29: ffff8000217c6e00 x28: 0000000000000002 x27: fffffbffff000000
x26: 0000000000000000 x25: ffff0000d1f54878 x24: ffff0000d1f5481a
x23: 00000000ffffeffe x22: ffff800009089f50 x21: ffff8000217c6ef0
x20: ffff00347d522bfe x19: 0000000000000002 x18: 1fffe000367a0176
x17: 0000000000000000 x16: ffff80001227ecc0 x15: 0000000000000000
x14: 00000000000000ff x13: ffff0000d0b29bc0 x12: 0000000000000001
x11: 1fffe0068faa457f x10: 1fffe0068faa457f x9 : ffffffffffffffff
x8 : ffff60068faa457f x7 : 0000000000000001 x6 : 0000000000000000
x5 : ffff8000217c6ef2 x4 : ffff000000000042 x3 : ffff800009089f50
x2 : 0000000000000000 x1 : 0000000000000002 x0 : ffff00347d522bfe
Call trace:
 bytes_is_nonzero mm/kasan/generic.c:84 [inline]
 memory_is_nonzero mm/kasan/generic.c:102 [inline]
 memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
 memory_is_poisoned mm/kasan/generic.c:159 [inline]
 check_region_inline mm/kasan/generic.c:180 [inline]
 kasan_check_range+0x64/0x2a4 mm/kasan/generic.c:189
 memcpy+0x48/0x90 mm/kasan/shadow.c:65
 memcpy_from_page include/linux/highmem.h:393 [inline]
 hfsplus_bnode_read fs/hfsplus/bnode.c:32 [inline]
 hfsplus_bnode_read_u16 fs/hfsplus/bnode.c:45 [inline]
 hfsplus_bnode_dump+0x3f0/0xa50 fs/hfsplus/bnode.c:305
 hfsplus_brec_remove+0x3d0/0x4a4 fs/hfsplus/brec.c:229
 __hfsplus_delete_attr+0x1dc/0x3e4 fs/hfsplus/attributes.c:299
 hfsplus_delete_attr+0x2e4/0x41c fs/hfsplus/attributes.c:345
 __hfsplus_setxattr+0x3b8/0x1d10 fs/hfsplus/xattr.c:342
 hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434
 hfsplus_trusted_setxattr+0x54/0x6c fs/hfsplus/xattr_trusted.c:30
 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182
 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216
 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277
 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309
 do_setxattr fs/xattr.c:594 [inline]
 setxattr+0x230/0x294 fs/xattr.c:617
 path_setxattr+0x17c/0x258 fs/xattr.c:636
 __do_sys_setxattr fs/xattr.c:652 [inline]
 __se_sys_setxattr fs/xattr.c:648 [inline]
 __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:648
 __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: 5400014c b4000b8c aa2a03e9 8b0b0129 (3940010a) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	5400014c 	b.gt	0x28
   4:	b4000b8c 	cbz	x12, 0x174
   8:	aa2a03e9 	mvn	x9, x10
   c:	8b0b0129 	add	x9, x9, x11
* 10:	3940010a 	ldrb	w10, [x8] <-- trapping instruction