================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_list_ea fs/ntfs3/xattr.c:230 [inline] BUG: KASAN: slab-out-of-bounds in ntfs_listxattr+0x354/0x50c fs/ntfs3/xattr.c:749 Read of size 48 at addr ffff0000d5d56f30 by task syz-executor.2/5097 CPU: 1 PID: 5097 Comm: syz-executor.2 Not tainted 5.15.139-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 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+0x90/0xe8 mm/kasan/shadow.c:65 ntfs_list_ea fs/ntfs3/xattr.c:230 [inline] ntfs_listxattr+0x354/0x50c fs/ntfs3/xattr.c:749 vfs_listxattr fs/xattr.c:448 [inline] listxattr+0x29c/0x3e4 fs/xattr.c:783 path_listxattr fs/xattr.c:807 [inline] __do_sys_listxattr fs/xattr.c:819 [inline] __se_sys_listxattr fs/xattr.c:816 [inline] __arm64_sys_listxattr+0x13c/0x21c fs/xattr.c:816 __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 5097: 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] ntfs_read_ea+0x3c0/0x818 fs/ntfs3/xattr.c:117 ntfs_list_ea fs/ntfs3/xattr.c:202 [inline] ntfs_listxattr+0x14c/0x50c fs/ntfs3/xattr.c:749 vfs_listxattr fs/xattr.c:448 [inline] listxattr+0x29c/0x3e4 fs/xattr.c:783 path_listxattr fs/xattr.c:807 [inline] __do_sys_listxattr fs/xattr.c:819 [inline] __se_sys_listxattr fs/xattr.c:816 [inline] __arm64_sys_listxattr+0x13c/0x21c fs/xattr.c:816 __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 ffff0000d5d56f00 which belongs to the cache kmalloc-128 of size 128 The buggy address is located 48 bytes inside of 128-byte region [ffff0000d5d56f00, ffff0000d5d56f80) The buggy address belongs to the page: page:000000008e7353fd refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115d56 flags: 0x5ffc00000000200(slab|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000000200 fffffc000336b080 0000000600000006 ffff0000c0002300 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d5d56e00: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc ffff0000d5d56e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000d5d56f00: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc ^ ffff0000d5d56f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d5d57000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================