================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_list_ea fs/ntfs3/xattr.c:182 [inline] BUG: KASAN: slab-out-of-bounds in ntfs_listxattr+0x402/0x460 fs/ntfs3/xattr.c:710 Read of size 1 at addr ffff88802872a5bd by task syz-executor.4/23981 CPU: 1 PID: 23981 Comm: syz-executor.4 Not tainted 6.1.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15e/0x45d mm/kasan/report.c:395 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495 ntfs_list_ea fs/ntfs3/xattr.c:182 [inline] ntfs_listxattr+0x402/0x460 fs/ntfs3/xattr.c:710 vfs_listxattr+0x109/0x190 fs/xattr.c:457 listxattr+0x70/0x180 fs/xattr.c:804 path_listxattr+0xae/0x140 fs/xattr.c:828 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff73488c0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff7355c6168 EFLAGS: 00000246 ORIG_RAX: 00000000000000c3 RAX: ffffffffffffffda RBX: 00007ff7349abf80 RCX: 00007ff73488c0d9 RDX: 00000000000000a7 RSI: 0000000020000bc0 RDI: 0000000020000b80 RBP: 00007ff7348e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe37a7dc3f R14: 00007ff7355c6300 R15: 0000000000022000 Allocated by task 23981: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] ____kasan_kmalloc mm/kasan/common.c:330 [inline] __kasan_kmalloc+0xa5/0xb0 mm/kasan/common.c:380 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc+0x5a/0xd0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] ntfs_read_ea+0x3e4/0x850 fs/ntfs3/xattr.c:110 ntfs_list_ea fs/ntfs3/xattr.c:168 [inline] ntfs_listxattr+0x16b/0x460 fs/ntfs3/xattr.c:710 vfs_listxattr+0x109/0x190 fs/xattr.c:457 listxattr+0x70/0x180 fs/xattr.c:804 path_listxattr+0xae/0x140 fs/xattr.c:828 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88802872a580 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 61 bytes inside of 64-byte region [ffff88802872a580, ffff88802872a5c0) The buggy address belongs to the physical page: page:ffffea0000a1ca80 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802872af00 pfn:0x2872a flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea00007137c0 dead000000000002 ffff888012041640 raw: ffff88802872af00 000000008020001c 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 2981, tgid 2981 (S02acpid), ts 12418636723, free_ts 12367288220 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4291 __alloc_pages+0x1cb/0x5b0 mm/page_alloc.c:5558 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2285 alloc_slab_page mm/slub.c:1794 [inline] allocate_slab+0x25f/0x350 mm/slub.c:1939 new_slab mm/slub.c:1992 [inline] ___slab_alloc+0xa91/0x1400 mm/slub.c:3180 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3279 slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x199/0x3e0 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc+0x4a/0xd0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] kzalloc include/linux/slab.h:689 [inline] tomoyo_encode2.part.0+0xe9/0x3a0 security/tomoyo/realpath.c:45 tomoyo_encode2 security/tomoyo/realpath.c:31 [inline] tomoyo_encode+0x2c/0x50 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x185/0x600 security/tomoyo/realpath.c:283 tomoyo_init_log+0xbe6/0x1ed0 security/tomoyo/audit.c:263 tomoyo_supervisor+0x354/0xf10 security/tomoyo/common.c:2088 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x183/0x200 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x13d2/0x1f80 security/tomoyo/domain.c:879 tomoyo_bprm_check_security security/tomoyo/tomoyo.c:101 [inline] tomoyo_bprm_check_security+0x125/0x1b0 security/tomoyo/tomoyo.c:91 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1459 [inline] free_pcp_prepare+0x65c/0xd90 mm/page_alloc.c:1509 free_unref_page_prepare mm/page_alloc.c:3387 [inline] free_unref_page_list+0x176/0xc40 mm/page_alloc.c:3529 release_pages+0xc8a/0x1360 mm/swap.c:1055 tlb_batch_pages_flush+0xa8/0x1a0 mm/mmu_gather.c:59 tlb_flush_mmu_free mm/mmu_gather.c:254 [inline] tlb_flush_mmu mm/mmu_gather.c:261 [inline] tlb_finish_mmu+0x14b/0x7e0 mm/mmu_gather.c:361 exit_mmap+0x202/0x7b0 mm/mmap.c:3096 __mmput+0x128/0x4c0 kernel/fork.c:1185 mmput+0x60/0x70 kernel/fork.c:1207 exit_mm kernel/exit.c:516 [inline] do_exit+0xa41/0x2a30 kernel/exit.c:807 do_group_exit+0xd4/0x2a0 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:959 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff88802872a480: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc ffff88802872a500: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc >ffff88802872a580: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc ^ ffff88802872a600: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc ffff88802872a680: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ==================================================================