loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). ================================================================== BUG: KASAN: slab-use-after-free in ntfs_iget5+0x157/0x38e0 fs/ntfs3/inode.c:533 Read of size 8 at addr ffff88803c887f60 by task syz-executor.0/9198 CPU: 0 PID: 9198 Comm: syz-executor.0 Not tainted 6.6.0-rc1-syzkaller-00269-ge789286468a9 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0x163/0x540 mm/kasan/report.c:475 kasan_report+0x175/0x1b0 mm/kasan/report.c:588 ntfs_iget5+0x157/0x38e0 fs/ntfs3/inode.c:533 ntfs_fill_super+0x2c18/0x4c30 fs/ntfs3/super.c:1213 get_tree_bdev+0x416/0x5b0 fs/super.c:1577 vfs_get_tree+0x8c/0x280 fs/super.c:1750 do_new_mount+0x28f/0xae0 fs/namespace.c:3335 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3861 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f49afc7e1ea Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f49b0912ee8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f49b0912f80 RCX: 00007f49afc7e1ea RDX: 00000000200000c0 RSI: 0000000020000040 RDI: 00007f49b0912f40 RBP: 00000000200000c0 R08: 00007f49b0912f80 R09: 0000000001014010 R10: 0000000001014010 R11: 0000000000000202 R12: 0000000020000040 R13: 00007f49b0912f40 R14: 000000000001f1e7 R15: 0000000020001600 Allocated by task 9028: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x67/0x3d0 mm/slab.h:762 slab_alloc_node mm/slub.c:3478 [inline] slab_alloc mm/slub.c:3486 [inline] __kmem_cache_alloc_lru mm/slub.c:3493 [inline] kmem_cache_alloc+0x123/0x300 mm/slub.c:3502 kmem_cache_zalloc include/linux/slab.h:710 [inline] start_transaction+0x889/0x11a0 fs/btrfs/transaction.c:659 btrfs_truncate fs/btrfs/inode.c:8281 [inline] btrfs_setsize fs/btrfs/inode.c:5018 [inline] btrfs_setattr+0x8d3/0x11e0 fs/btrfs/inode.c:5053 notify_change+0xb99/0xe60 fs/attr.c:499 do_truncate+0x220/0x300 fs/open.c:66 handle_truncate fs/namei.c:3298 [inline] do_open fs/namei.c:3643 [inline] path_openat+0x2959/0x3180 fs/namei.c:3796 do_filp_open+0x234/0x490 fs/namei.c:3823 do_sys_openat2+0x13e/0x1d0 fs/open.c:1422 do_sys_open fs/open.c:1437 [inline] __do_sys_open fs/open.c:1445 [inline] __se_sys_open fs/open.c:1441 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 9028: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4f/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1800 [inline] slab_free_freelist_hook mm/slub.c:1826 [inline] slab_free mm/slub.c:3809 [inline] kmem_cache_free+0x292/0x500 mm/slub.c:3831 __btrfs_end_transaction+0x502/0x630 fs/btrfs/transaction.c:1057 btrfs_truncate fs/btrfs/inode.c:8386 [inline] btrfs_setsize fs/btrfs/inode.c:5018 [inline] btrfs_setattr+0xe0d/0x11e0 fs/btrfs/inode.c:5053 notify_change+0xb99/0xe60 fs/attr.c:499 do_truncate+0x220/0x300 fs/open.c:66 handle_truncate fs/namei.c:3298 [inline] do_open fs/namei.c:3643 [inline] path_openat+0x2959/0x3180 fs/namei.c:3796 do_filp_open+0x234/0x490 fs/namei.c:3823 do_sys_openat2+0x13e/0x1d0 fs/open.c:1422 do_sys_open fs/open.c:1437 [inline] __do_sys_open fs/open.c:1445 [inline] __se_sys_open fs/open.c:1441 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1441 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88803c887f18 which belongs to the cache btrfs_trans_handle of size 104 The buggy address is located 72 bytes inside of freed 104-byte region [ffff88803c887f18, ffff88803c887f80) The buggy address belongs to the physical page: page:ffffea0000f221c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3c887 flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000800 ffff88802a7483c0 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000180018 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x112c50(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 8979, tgid 8877 (syz-executor.4), ts 384736914051, free_ts 353450495980 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x1e6/0x210 mm/page_alloc.c:1536 prep_new_page mm/page_alloc.c:1543 [inline] get_page_from_freelist+0x31db/0x3360 mm/page_alloc.c:3170 __alloc_pages+0x255/0x670 mm/page_alloc.c:4426 alloc_slab_page+0x6a/0x160 mm/slub.c:1870 allocate_slab mm/slub.c:2017 [inline] new_slab+0x84/0x2f0 mm/slub.c:2070 ___slab_alloc+0xc85/0x1310 mm/slub.c:3223 __slab_alloc mm/slub.c:3322 [inline] __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] slab_alloc mm/slub.c:3486 [inline] __kmem_cache_alloc_lru mm/slub.c:3493 [inline] kmem_cache_alloc+0x1bf/0x300 mm/slub.c:3502 kmem_cache_zalloc include/linux/slab.h:710 [inline] start_transaction+0x889/0x11a0 fs/btrfs/transaction.c:659 btrfs_dirty_inode+0x119/0x1a0 fs/btrfs/inode.c:5994 inode_update_time fs/inode.c:1948 [inline] touch_atime+0x2c3/0x890 fs/inode.c:2020 file_accessed include/linux/fs.h:2320 [inline] filemap_splice_read+0xab8/0xcd0 mm/filemap.c:2975 splice_direct_to_actor+0x2c4/0x9e0 fs/splice.c:1069 do_splice_direct+0x2ac/0x3f0 fs/splice.c:1194 do_sendfile+0x623/0x1070 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1136 [inline] free_unref_page_prepare+0x8c3/0x9f0 mm/page_alloc.c:2312 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2405 discard_slab mm/slub.c:2116 [inline] __unfreeze_partials+0x1dc/0x220 mm/slub.c:2655 put_cpu_partial+0x17b/0x250 mm/slub.c:2731 __slab_free+0x2b6/0x390 mm/slub.c:3679 qlink_free mm/kasan/quarantine.c:166 [inline] qlist_free_all+0x75/0xe0 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x14b/0x160 mm/kasan/quarantine.c:292 ____kasan_kmalloc mm/kasan/common.c:340 [inline] __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:198 [inline] __do_kmalloc_node mm/slab_common.c:1023 [inline] __kmalloc+0xb9/0x230 mm/slab_common.c:1036 kmalloc_array include/linux/slab.h:636 [inline] kcalloc include/linux/slab.h:667 [inline] init_scrub_stripe+0x1a4/0x4e0 fs/btrfs/scrub.c:269 scrub_setup_ctx+0x11a/0x380 fs/btrfs/scrub.c:365 btrfs_scrub_dev+0x1dc/0xe20 fs/btrfs/scrub.c:2816 btrfs_ioctl_scrub+0x235/0x370 fs/btrfs/ioctl.c:3188 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Memory state around the buggy address: ffff88803c887e00: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb ffff88803c887e80: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc >ffff88803c887f00: fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88803c887f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88803c888000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================