loop4: detected capacity change from 0 to 4096 ntfs3: loop4: Different NTFS' sector size (1024) and media sector size (512) loop4: detected capacity change from 4096 to 0 ================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_sb_write+0x2d1/0x480 fs/ntfs3/fsntfs.c:1066 Read of size 3504 at addr ffff888141283f40 by task syz.4.21/4413 CPU: 1 PID: 4413 Comm: syz.4.21 Not tainted 6.1.116-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15f/0x4f0 mm/kasan/report.c:395 kasan_report+0x136/0x160 mm/kasan/report.c:495 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189 memcpy+0x25/0x60 mm/kasan/shadow.c:65 ntfs_sb_write+0x2d1/0x480 fs/ntfs3/fsntfs.c:1066 ntfs_sb_write_run+0x29c/0x810 fs/ntfs3/fsntfs.c:1117 ntfs_set_ea+0x11e6/0x1660 fs/ntfs3/xattr.c:499 ntfs_save_wsl_perm+0x139/0x490 fs/ntfs3/xattr.c:976 ntfs3_setattr+0x961/0xb70 fs/ntfs3/file.c:816 notify_change+0xce3/0xfc0 fs/attr.c:499 chmod_common+0x2a7/0x4b0 fs/open.c:606 do_fchmodat fs/open.c:645 [inline] __do_sys_fchmodat fs/open.c:658 [inline] __se_sys_fchmodat fs/open.c:655 [inline] __x64_sys_fchmodat+0x117/0x1a0 fs/open.c:655 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f0eeaf7e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0eebe4f038 EFLAGS: 00000246 ORIG_RAX: 000000000000010c RAX: ffffffffffffffda RBX: 00007f0eeb135f80 RCX: 00007f0eeaf7e719 RDX: 0000000000000141 RSI: 0000000020000200 RDI: ffffffffffffff9c RBP: 00007f0eeaff1616 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0eeb135f80 R15: 00007fff90b8a6e8 Allocated by task 4413: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xb2/0x230 mm/slab_common.c:949 kmalloc include/linux/slab.h:562 [inline] kzalloc include/linux/slab.h:693 [inline] ntfs_set_ea+0x6d7/0x1660 fs/ntfs3/xattr.c:401 ntfs_save_wsl_perm+0x139/0x490 fs/ntfs3/xattr.c:976 ntfs3_setattr+0x961/0xb70 fs/ntfs3/file.c:816 notify_change+0xce3/0xfc0 fs/attr.c:499 chmod_common+0x2a7/0x4b0 fs/open.c:606 do_fchmodat fs/open.c:645 [inline] __do_sys_fchmodat fs/open.c:658 [inline] __se_sys_fchmodat fs/open.c:655 [inline] __x64_sys_fchmodat+0x117/0x1a0 fs/open.c:655 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 The buggy address belongs to the object at ffff888141283f40 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff888141283f40, ffff888141283f60) The buggy address belongs to the physical page: page:ffffea000504a0c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x141283 flags: 0x57ff00000000200(slab|node=1|zone=2|lastcpupid=0x7ff) raw: 057ff00000000200 0000000000000000 dead000000000001 ffff888017c41500 raw: 0000000000000000 0000000080400040 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 1, tgid 1 (swapper/0), ts 2683983296, free_ts 0 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517 prep_new_page mm/page_alloc.c:2524 [inline] get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4313 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5589 alloc_page_interleave+0x22/0x1c0 mm/mempolicy.c:2115 alloc_slab_page+0x6a/0x150 mm/slub.c:1794 allocate_slab mm/slub.c:1939 [inline] new_slab+0x84/0x2d0 mm/slub.c:1992 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:935 [inline] __kmalloc_node_track_caller+0xa0/0x220 mm/slab_common.c:956 __do_krealloc mm/slab_common.c:1336 [inline] krealloc+0x71/0x110 mm/slab_common.c:1369 add_sysfs_param+0x137/0x7f0 kernel/params.c:660 kernel_add_sysfs_param+0xb0/0x126 kernel/params.c:812 param_sysfs_builtin+0x16a/0x1e2 kernel/params.c:851 param_sysfs_init+0x66/0x6a kernel/params.c:970 do_one_initcall+0x265/0x8f0 init/main.c:1298 do_initcall_level+0x157/0x207 init/main.c:1371 page_owner free stack trace missing Memory state around the buggy address: ffff888141283e00: 00 00 00 00 fc fc fc fc fb fb fb fb fc fc fc fc ffff888141283e80: 00 00 00 00 fc fc fc fc 00 00 00 00 fc fc fc fc >ffff888141283f00: 00 00 00 00 fc fc fc fc 00 00 04 fc fc fc fc fc ^ ffff888141283f80: 00 00 00 fc fc fc fc fc fb fb fb fb fc fc fc fc ffff888141284000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================