loop4: detected capacity change from 0 to 4096 ntfs3: loop4: Different NTFS' sector size (1024) and media sector size (512) ================================================================== 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 ffff88801f1f663d by task syz-executor.4/16390 CPU: 1 PID: 16390 Comm: syz-executor.4 Not tainted 6.1.0-rc8-syzkaller-00014-g8ed710da2873 #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+0xf6/0x180 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: 0033:0x7f53fce8c0d9 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:00007f53fdbd6168 EFLAGS: 00000246 ORIG_RAX: 00000000000000c3 RAX: ffffffffffffffda RBX: 00007f53fcfabf80 RCX: 00007f53fce8c0d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0 RBP: 00007f53fcee7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe0edda2df R14: 00007f53fdbd6300 R15: 0000000000022000 Allocated by task 16390: 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+0xf6/0x180 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 Last potentially related work creation: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:481 kvfree_call_rcu+0x78/0x8f0 kernel/rcu/tree.c:3343 sctp_bind_addr_clean+0x135/0x1f0 net/sctp/bind_addr.c:125 sctp_association_free+0x290/0x7d0 net/sctp/associola.c:358 sctp_cmd_delete_tcb net/sctp/sm_sideeffect.c:944 [inline] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1328 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline] sctp_do_sm+0x33ff/0x5290 net/sctp/sm_sideeffect.c:1170 sctp_primitive_SHUTDOWN+0x9f/0xc0 net/sctp/primitive.c:89 sctp_close+0x3e7/0x940 net/sctp/socket.c:1526 inet_release+0x132/0x270 net/ipv4/af_inet.c:428 inet6_release+0x50/0x70 net/ipv6/af_inet6.c:488 __sock_release+0xcd/0x280 net/socket.c:650 sock_close+0x1c/0x20 net/socket.c:1365 __fput+0x27c/0xa90 fs/file_table.c:320 task_work_run+0x16f/0x270 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd Second to last potentially related work creation: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:481 call_rcu+0x9d/0x820 kernel/rcu/tree.c:2798 __percpu_ref_switch_to_atomic lib/percpu-refcount.c:233 [inline] __percpu_ref_switch_mode+0x398/0x870 lib/percpu-refcount.c:280 percpu_ref_kill_and_confirm+0x8e/0x180 lib/percpu-refcount.c:394 percpu_ref_kill include/linux/percpu-refcount.h:149 [inline] io_ring_ctx_wait_and_kill+0x83/0x387 io_uring/io_uring.c:2803 io_uring_release+0x46/0x4a io_uring/io_uring.c:2834 __fput+0x27c/0xa90 fs/file_table.c:320 task_work_run+0x16f/0x270 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xb3d/0x2a30 kernel/exit.c:820 do_group_exit+0xd4/0x2a0 kernel/exit.c:950 get_signal+0x21b1/0x2440 kernel/signal.c:2858 arch_do_signal_or_restart+0x86/0x2300 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:296 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88801f1f6600 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 61 bytes inside of 64-byte region [ffff88801f1f6600, ffff88801f1f6640) The buggy address belongs to the physical page: page:ffffea00007c7d80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1f1f6 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea0000efbe00 dead000000000006 ffff888012041640 raw: 0000000000000000 0000000080200020 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 9, tgid 9 (kworker/u4:0), ts 6429603202, free_ts 0 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 kmalloc_node_trace+0x21/0x60 mm/slab_common.c:1058 kmalloc_node include/linux/slab.h:575 [inline] kzalloc_node include/linux/slab.h:700 [inline] __get_vm_area_node+0xed/0x3f0 mm/vmalloc.c:2494 __vmalloc_node_range+0x25b/0x13c0 mm/vmalloc.c:3173 alloc_thread_stack_node kernel/fork.c:311 [inline] dup_task_struct kernel/fork.c:974 [inline] copy_process+0x1566/0x7190 kernel/fork.c:2084 kernel_clone+0xeb/0x980 kernel/fork.c:2671 user_mode_thread+0xb1/0xf0 kernel/fork.c:2747 call_usermodehelper_exec_work kernel/umh.c:175 [inline] call_usermodehelper_exec_work+0xd0/0x180 kernel/umh.c:161 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 page_owner free stack trace missing Memory state around the buggy address: ffff88801f1f6500: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ffff88801f1f6580: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc >ffff88801f1f6600: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc ^ ffff88801f1f6680: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc ffff88801f1f6700: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc ==================================================================