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BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x120/0x24c fs/hfsplus/bnode.c:32
Write of size 4026 at addr ffff0000e7890800 by task syz-executor.1/5048

CPU: 0 PID: 5048 Comm: syz-executor.1 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x174/0x1e4 mm/kasan/report.c:451
 kasan_check_range+0x274/0x2b4 mm/kasan/generic.c:189
 memcpy+0xb4/0xe8 mm/kasan/shadow.c:66
 hfsplus_bnode_read+0x120/0x24c fs/hfsplus/bnode.c:32
 hfsplus_bnode_read_key+0x170/0x278 fs/hfsplus/bnode.c:72
 hfsplus_brec_insert+0x520/0xaa0 fs/hfsplus/brec.c:141
 hfsplus_create_attr+0x3b0/0x568 fs/hfsplus/attributes.c:252
 __hfsplus_setxattr+0x9a8/0x1df0 fs/hfsplus/xattr.c:354
 hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434
 hfsplus_security_setxattr+0x54/0x6c fs/hfsplus/xattr_security.c:31
 __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:303
 do_setxattr fs/xattr.c:588 [inline]
 setxattr+0x250/0x2b4 fs/xattr.c:611
 path_setxattr+0x17c/0x258 fs/xattr.c:630
 __do_sys_setxattr fs/xattr.c:646 [inline]
 __se_sys_setxattr fs/xattr.c:642 [inline]
 __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:642
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 5048:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513
 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 __kmalloc+0x29c/0x4c8 mm/slub.c:4407
 kmalloc include/linux/slab.h:596 [inline]
 hfsplus_find_init+0x84/0x1bc fs/hfsplus/bfind.c:21
 hfsplus_create_attr+0x14c/0x568 fs/hfsplus/attributes.c:216
 __hfsplus_setxattr+0x9a8/0x1df0 fs/hfsplus/xattr.c:354
 hfsplus_setxattr+0xb4/0xec fs/hfsplus/xattr.c:434
 hfsplus_security_setxattr+0x54/0x6c fs/hfsplus/xattr_security.c:31
 __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:303
 do_setxattr fs/xattr.c:588 [inline]
 setxattr+0x250/0x2b4 fs/xattr.c:611
 path_setxattr+0x17c/0x258 fs/xattr.c:630
 __do_sys_setxattr fs/xattr.c:646 [inline]
 __se_sys_setxattr fs/xattr.c:642 [inline]
 __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:642
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

The buggy address belongs to the object at ffff0000e7890800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 0 bytes inside of
 1024-byte region [ffff0000e7890800, ffff0000e7890c00)
The buggy address belongs to the page:
page:000000002f2a9566 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x127890
head:000000002f2a9566 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x5ffe00000010200(slab|head|node=0|zone=2|lastcpupid=0xfff)
raw: 05ffe00000010200 fffffc000363e800 0000000f00000002 ffff0000c0002780
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000e7890900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000e7890980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000e7890a00: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff0000e7890a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000e7890b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
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