================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_list_ea fs/ntfs3/xattr.c:232 [inline] BUG: KASAN: slab-out-of-bounds in ntfs_listxattr+0x354/0x50c fs/ntfs3/xattr.c:733 Read of size 48 at addr ffff0000d640b3b0 by task syz-executor.4/22920 CPU: 1 PID: 22920 Comm: syz-executor.4 Not tainted 6.7.0-rc6-syzkaller-gaafe7ad77b91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x174/0x514 mm/kasan/report.c:475 kasan_report+0xd8/0x138 mm/kasan/report.c:588 kasan_check_range+0x254/0x294 mm/kasan/generic.c:187 __asan_memcpy+0x3c/0x84 mm/kasan/shadow.c:105 ntfs_list_ea fs/ntfs3/xattr.c:232 [inline] ntfs_listxattr+0x354/0x50c fs/ntfs3/xattr.c:733 vfs_listxattr fs/xattr.c:494 [inline] listxattr+0x108/0x368 fs/xattr.c:841 path_listxattr fs/xattr.c:865 [inline] __do_sys_llistxattr fs/xattr.c:883 [inline] __se_sys_llistxattr fs/xattr.c:880 [inline] __arm64_sys_llistxattr+0x13c/0x21c fs/xattr.c:880 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Allocated by task 22920: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x7c mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:511 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:198 [inline] __do_kmalloc_node mm/slab_common.c:1007 [inline] __kmalloc+0xcc/0x1b8 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] ntfs_read_ea+0x3c0/0x808 fs/ntfs3/xattr.c:118 ntfs_list_ea fs/ntfs3/xattr.c:204 [inline] ntfs_listxattr+0x14c/0x50c fs/ntfs3/xattr.c:733 vfs_listxattr fs/xattr.c:494 [inline] listxattr+0x108/0x368 fs/xattr.c:841 path_listxattr fs/xattr.c:865 [inline] __do_sys_llistxattr fs/xattr.c:883 [inline] __se_sys_llistxattr fs/xattr.c:880 [inline] __arm64_sys_llistxattr+0x13c/0x21c fs/xattr.c:880 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 Last potentially related work creation: kasan_save_stack+0x40/0x6c mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:492 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:502 __call_rcu_common kernel/rcu/tree.c:2681 [inline] call_rcu+0x104/0xaf4 kernel/rcu/tree.c:2795 call_rcu_hurry include/linux/rcupdate.h:117 [inline] __percpu_ref_switch_to_atomic lib/percpu-refcount.c:233 [inline] __percpu_ref_switch_mode+0x328/0x5b4 lib/percpu-refcount.c:281 percpu_ref_kill_and_confirm+0xb4/0x150 lib/percpu-refcount.c:395 percpu_ref_kill include/linux/percpu-refcount.h:149 [inline] io_ring_ctx_wait_and_kill+0x98/0x2c4 io_uring/io_uring.c:3190 io_uring_create+0x5a4/0x108c io_uring/io_uring.c:4096 io_uring_setup io_uring/io_uring.c:4131 [inline] __do_sys_io_uring_setup io_uring/io_uring.c:4158 [inline] __se_sys_io_uring_setup io_uring/io_uring.c:4152 [inline] __arm64_sys_io_uring_setup+0x378/0x418 io_uring/io_uring.c:4152 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 The buggy address belongs to the object at ffff0000d640b380 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 48 bytes inside of allocated 60-byte region [ffff0000d640b380, ffff0000d640b3bc) The buggy address belongs to the physical page: page:00000000add837b1 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0000d640b900 pfn:0x11640b anon flags: 0x5ffc00000000800(slab|node=0|zone=2|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 05ffc00000000800 ffff0000c0001640 0000000000000000 dead000000000001 raw: ffff0000d640b900 000000008020001f 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d640b280: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff0000d640b300: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc >ffff0000d640b380: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc ^ ffff0000d640b400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ffff0000d640b480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================