ntfs3: loop2: Different NTFS' sector size (4096) and media sector size (512) ntfs3: loop2: Mark volume as dirty due to NTFS errors ntfs3: loop2: Failed to load $Extend. ================================================================== BUG: KASAN: slab-out-of-bounds in ntfs_trim_fs+0x710/0x9e0 fs/ntfs3/bitmap.c:1434 Read of size 2 at addr ffff88807c3df822 by task syz-executor.2/9509 CPU: 0 PID: 9509 Comm: syz-executor.2 Not tainted 6.1.0-rc8-syzkaller-00035-gf3e8416619ce #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+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report+0xcd/0x100 mm/kasan/report.c:495 ntfs_trim_fs+0x710/0x9e0 fs/ntfs3/bitmap.c:1434 ntfs_ioctl_fitrim fs/ntfs3/file.c:40 [inline] ntfs_ioctl+0x2d4/0x3a0 fs/ntfs3/file.c:57 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe37348c0d9 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:00007fe37422a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe3735abf80 RCX: 00007fe37348c0d9 RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000004 RBP: 00007fe3734e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6a2fd02f R14: 00007fe37422a300 R15: 0000000000022000 Allocated by task 9509: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:380 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc+0xaf/0x1a0 mm/slab_common.c:968 kmalloc_array include/linux/slab.h:605 [inline] kcalloc include/linux/slab.h:636 [inline] wnd_init+0x1db/0x310 fs/ntfs3/bitmap.c:664 ntfs_fill_super+0x310a/0x42a0 fs/ntfs3/super.c:1118 get_tree_bdev+0x400/0x620 fs/super.c:1324 vfs_get_tree+0x88/0x270 fs/super.c:1531 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88807c3df820 which belongs to the cache kmalloc-8 of size 8 The buggy address is located 2 bytes inside of 8-byte region [ffff88807c3df820, ffff88807c3df828) The buggy address belongs to the physical page: page:ffffea0001f0f7c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88807c3df668 pfn:0x7c3df flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea00007e2040 dead000000000002 ffff888012841280 raw: ffff88807c3df668 000000008066005d 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 3663, tgid 3663 (syz-executor.1), ts 160552465423, free_ts 160528784376 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4291 __alloc_pages+0x259/0x560 mm/page_alloc.c:5558 alloc_slab_page+0xbd/0x190 mm/slub.c:1794 allocate_slab+0x5e/0x4b0 mm/slub.c:1939 new_slab mm/slub.c:1992 [inline] ___slab_alloc+0x782/0xe20 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x252/0x310 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc_node_track_caller+0x9c/0x190 mm/slab_common.c:975 kvasprintf+0xcc/0x180 lib/kasprintf.c:25 kobject_set_name_vargs+0x5d/0x110 lib/kobject.c:257 device_create_groups_vargs drivers/base/core.c:4190 [inline] device_create+0x20b/0x2d0 drivers/base/core.c:4236 mac80211_hwsim_new_radio+0x328/0x3c90 drivers/net/wireless/mac80211_hwsim.c:4275 hwsim_new_radio_nl+0xc77/0x11e0 drivers/net/wireless/mac80211_hwsim.c:5175 genl_family_rcv_msg_doit net/netlink/genetlink.c:756 [inline] genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0xb8e/0xf20 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2540 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7e7/0x9c0 net/netlink/af_netlink.c:1345 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+0x80c/0x8f0 mm/page_alloc.c:1509 free_unref_page_prepare mm/page_alloc.c:3387 [inline] free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3483 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x169/0x180 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:302 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slab.h:737 [inline] slab_alloc_node mm/slub.c:3398 [inline] __kmem_cache_alloc_node+0x1d7/0x310 mm/slub.c:3437 kmalloc_trace+0x26/0x60 mm/slab_common.c:1045 kmalloc include/linux/slab.h:553 [inline] kzalloc include/linux/slab.h:689 [inline] vlan_info_alloc net/8021q/vlan_core.c:153 [inline] vlan_vid_add+0x128/0x740 net/8021q/vlan_core.c:329 vlan_device_event+0x1b5b/0x1c90 net/8021q/vlan.c:385 notifier_call_chain kernel/notifier.c:87 [inline] raw_notifier_call_chain+0xe7/0x170 kernel/notifier.c:455 __dev_notify_flags+0x2ef/0x5d0 dev_change_flags+0xe3/0x190 net/core/dev.c:8619 do_setlink+0xef5/0x3d40 net/core/rtnetlink.c:2788 __rtnl_newlink net/core/rtnetlink.c:3547 [inline] rtnl_newlink+0x1748/0x1fa0 net/core/rtnetlink.c:3594 rtnetlink_rcv_msg+0x772/0xe60 net/core/rtnetlink.c:6091 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2540 Memory state around the buggy address: ffff88807c3df700: fc fa fc fc fc fc 05 fc fc fc fc fa fc fc fc fc ffff88807c3df780: fb fc fc fc fc fb fc fc fc fc fa fc fc fc fc fa >ffff88807c3df800: fc fc fc fc 02 fc fc fc fc fb fc fc fc fc fb fc ^ ffff88807c3df880: fc fc fc fb fc fc fc fc fa fc fc fc fc fa fc fc ffff88807c3df900: fc fc fa fc fc fc fc fb fc fc fc fc fb fc fc fc ==================================================================