loop0: detected capacity change from 0 to 8189 ntfs3: loop0: Different NTFS' sector size (1024) and media sector size (512) ntfs3: loop0: Mark volume as dirty due to NTFS errors ================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_trim_fs+0x84b/0x940 fs/ntfs3/bitmap.c:1434 Read of size 2 at addr ffff888024c13822 by task syz-executor.0/4157 CPU: 1 PID: 4157 Comm: syz-executor.0 Not tainted 6.0.0-rc7-syzkaller-00022-gd45da67caeda #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:317 [inline] print_report.cold+0x2ba/0x719 mm/kasan/report.c:433 kasan_report+0xb1/0x1e0 mm/kasan/report.c:495 ntfs_trim_fs+0x84b/0x940 fs/ntfs3/bitmap.c:1434 ntfs_ioctl_fitrim+0x23e/0x340 fs/ntfs3/file.c:40 ntfs_ioctl+0x9c/0xd0 fs/ntfs3/file.c:57 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe42de8a669 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe42ef5c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe42dfabf80 RCX: 00007fe42de8a669 RDX: 0000000020000000 RSI: 00000000c0185879 RDI: 0000000000000003 RBP: 00007fe42dee5560 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc90a082ff R14: 00007fe42ef5c300 R15: 0000000000022000 Allocated by task 4157: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:437 [inline] ____kasan_kmalloc mm/kasan/common.c:516 [inline] ____kasan_kmalloc mm/kasan/common.c:475 [inline] __kasan_kmalloc+0xa9/0xd0 mm/kasan/common.c:525 kmalloc_array include/linux/slab.h:640 [inline] kcalloc include/linux/slab.h:671 [inline] wnd_init+0x2fb/0x460 fs/ntfs3/bitmap.c:664 ntfs_fill_super+0x279d/0x39b0 fs/ntfs3/super.c:1144 get_tree_bdev+0x440/0x760 fs/super.c:1323 vfs_get_tree+0x89/0x2f0 fs/super.c:1530 do_new_mount fs/namespace.c:3040 [inline] path_mount+0x1326/0x1e20 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff888024c13820 which belongs to the cache kmalloc-8 of size 8 The buggy address is located 2 bytes inside of 8-byte region [ffff888024c13820, ffff888024c13828) The buggy address belongs to the physical page: page:ffffea00009304c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x24c13 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 0000000000000000 dead000000000001 ffff888011841280 raw: 0000000000000000 0000000080660066 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 8380516960, free_ts 0 prep_new_page mm/page_alloc.c:2532 [inline] get_page_from_freelist+0x109b/0x2ce0 mm/page_alloc.c:4283 __alloc_pages+0x1c7/0x510 mm/page_alloc.c:5515 alloc_page_interleave+0x1e/0x200 mm/mempolicy.c:2103 alloc_pages+0x22f/0x270 mm/mempolicy.c:2265 alloc_slab_page mm/slub.c:1829 [inline] allocate_slab+0x27e/0x3d0 mm/slub.c:1974 new_slab mm/slub.c:2034 [inline] ___slab_alloc+0x7f1/0xe10 mm/slub.c:3036 __slab_alloc.constprop.0+0x4d/0xa0 mm/slub.c:3123 slab_alloc_node mm/slub.c:3214 [inline] slab_alloc mm/slub.c:3256 [inline] __kmalloc_track_caller+0x325/0x340 mm/slub.c:4931 kstrdup+0x36/0x70 mm/util.c:61 kstrdup_const+0x53/0x80 mm/util.c:84 __kernfs_new_node+0x9d/0x8b0 fs/kernfs/dir.c:589 kernfs_new_node+0x93/0x120 fs/kernfs/dir.c:655 kernfs_create_link+0xcb/0x230 fs/kernfs/symlink.c:39 sysfs_do_create_link_sd+0x90/0x140 fs/sysfs/symlink.c:44 sysfs_do_create_link fs/sysfs/symlink.c:80 [inline] sysfs_create_link+0x5f/0xc0 fs/sysfs/symlink.c:92 bus_add_device+0x16a/0x5a0 drivers/base/bus.c:451 page_owner free stack trace missing Memory state around the buggy address: ffff888024c13700: fc 07 fc fc fc fc 05 fc fc fc fc 07 fc fc fc fc ffff888024c13780: 00 fc fc fc fc 07 fc fc fc fc 00 fc fc fc fc 00 >ffff888024c13800: fc fc fc fc 02 fc fc fc fc 00 fc fc fc fc 06 fc ^ ffff888024c13880: fc fc fc 07 fc fc fc fc fb fc fc fc fc 00 fc fc ffff888024c13900: fc fc 00 fc fc fc fc 06 fc fc fc fc 07 fc fc fc ==================================================================