loop2: detected capacity change from 0 to 4096 ntfs3: loop2: Different NTFS' sector size (4096) and media sector size (512) ================================================================== BUG: KASAN: use-after-free in ntfs_trim_fs+0x84f/0x950 fs/ntfs3/bitmap.c:1434 Read of size 2 at addr ffff88806f5008c0 by task syz-executor.2/8562 CPU: 0 PID: 8562 Comm: syz-executor.2 Not tainted 6.1.0-rc8-syzkaller-00152-g3ecc37918c80 #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/0x461 mm/kasan/report.c:395 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495 ntfs_trim_fs+0x84f/0x950 fs/ntfs3/bitmap.c:1434 ntfs_ioctl_fitrim+0x23e/0x340 fs/ntfs3/file.c:40 ntfs_ioctl+0xa0/0xe0 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+0x197/0x210 fs/ioctl.c:856 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: 0033:0x7fb82868c0d9 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:00007fb82930a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb8287abf80 RCX: 00007fb82868c0d9 RDX: 0000000020000040 RSI: 00000000c0185879 RDI: 0000000000000004 RBP: 00007fb8286e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd7d8e8acf R14: 00007fb82930a300 R15: 0000000000022000 Allocated by task 4205: 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+0xa3/0xb0 mm/kasan/common.c:380 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc_node+0x5d/0xd0 mm/slab_common.c:962 kmalloc_node include/linux/slab.h:579 [inline] kvmalloc_node+0x43/0x1b0 mm/util.c:581 kvmalloc include/linux/slab.h:706 [inline] vmemdup_user+0x26/0x100 mm/util.c:200 setxattr_copy+0x144/0x1f0 fs/xattr.c:573 setxattr+0xc8/0x160 fs/xattr.c:613 path_setxattr+0x197/0x1c0 fs/xattr.c:636 __do_sys_lsetxattr fs/xattr.c:659 [inline] __se_sys_lsetxattr fs/xattr.c:655 [inline] __x64_sys_lsetxattr+0xc1/0x160 fs/xattr.c:655 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 Freed by task 4205: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:511 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x13b/0x1a0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:177 [inline] __cache_free mm/slab.c:3389 [inline] __do_kmem_cache_free mm/slab.c:3585 [inline] __kmem_cache_free+0xcd/0x3b0 mm/slab.c:3592 kvfree+0x46/0x50 mm/util.c:627 setxattr+0x153/0x160 fs/xattr.c:619 path_setxattr+0x197/0x1c0 fs/xattr.c:636 __do_sys_lsetxattr fs/xattr.c:659 [inline] __se_sys_lsetxattr fs/xattr.c:655 [inline] __x64_sys_lsetxattr+0xc1/0x160 fs/xattr.c:655 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 The buggy address belongs to the object at ffff88806f5008c0 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff88806f5008c0, ffff88806f5008e0) The buggy address belongs to the physical page: page:ffffea0001bd4000 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88806f500fc1 pfn:0x6f500 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea0001cb8488 ffffea0001db4e88 ffff888012040100 raw: ffff88806f500fc1 ffff88806f500000 000000010000003b 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 0x3420c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_COMP|__GFP_HARDWALL|__GFP_THISNODE), pid 3691, tgid 3691 (syz-executor.3), ts 279349911069, free_ts 279320233309 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_node include/linux/gfp.h:237 [inline] kmem_getpages mm/slab.c:1363 [inline] cache_grow_begin+0x94/0x390 mm/slab.c:2570 cache_alloc_refill+0x27f/0x380 mm/slab.c:2943 ____cache_alloc mm/slab.c:3019 [inline] ____cache_alloc mm/slab.c:3002 [inline] __do_cache_alloc mm/slab.c:3202 [inline] slab_alloc_node mm/slab.c:3250 [inline] __kmem_cache_alloc_node+0x44a/0x510 mm/slab.c:3549 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc+0x4a/0xd0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] kzalloc include/linux/slab.h:689 [inline] xt_jumpstack_alloc net/netfilter/x_tables.c:1334 [inline] xt_replace_table+0x584/0x8c0 net/netfilter/x_tables.c:1393 __do_replace+0x1d7/0x8e0 net/ipv4/netfilter/ip_tables.c:1067 do_replace net/ipv4/netfilter/ip_tables.c:1140 [inline] do_ipt_set_ctl+0x89d/0xb10 net/ipv4/netfilter/ip_tables.c:1630 nf_setsockopt+0x87/0xe0 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0xf2/0x110 net/ipv4/ip_sockglue.c:1444 tcp_setsockopt+0x9f/0x100 net/ipv4/tcp.c:3800 __sys_setsockopt+0x2da/0x6a0 net/socket.c:2252 __do_sys_setsockopt net/socket.c:2263 [inline] __se_sys_setsockopt net/socket.c:2260 [inline] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2260 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 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+0x65c/0xd90 mm/page_alloc.c:1509 free_unref_page_prepare mm/page_alloc.c:3387 [inline] free_unref_page+0x1d/0x4d0 mm/page_alloc.c:3483 slab_destroy mm/slab.c:1615 [inline] slabs_destroy+0x85/0xc0 mm/slab.c:1635 cache_flusharray mm/slab.c:3360 [inline] ___cache_free+0x2ac/0x3d0 mm/slab.c:3423 qlink_free mm/kasan/quarantine.c:168 [inline] qlist_free_all+0x4f/0x1a0 mm/kasan/quarantine.c:187 kasan_quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:294 __kasan_slab_alloc+0x63/0x90 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/slab.c:3257 [inline] __kmem_cache_alloc_node+0x266/0x510 mm/slab.c:3549 kmalloc_trace+0x26/0x60 mm/slab_common.c:1045 kmalloc include/linux/slab.h:553 [inline] usb_control_msg+0xbd/0x4a0 drivers/usb/core/message.c:143 usb_clear_port_feature drivers/usb/core/hub.c:430 [inline] hub_port_reset+0x843/0x1cd0 drivers/usb/core/hub.c:3000 hub_port_init+0x944/0x34a0 drivers/usb/core/hub.c:4858 usb_reset_and_verify_device+0x3a0/0xde0 drivers/usb/core/hub.c:5934 usb_reset_device+0x56a/0xac0 drivers/usb/core/hub.c:6119 __usb_queue_reset_device+0x6c/0xa0 drivers/usb/core/message.c:1904 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 Memory state around the buggy address: ffff88806f500780: fa fb fb fb fc fc fc fc 00 00 00 00 fc fc fc fc ffff88806f500800: 00 00 00 00 fc fc fc fc fa fb fb fb fc fc fc fc >ffff88806f500880: 02 fc fc fc fc fc fc fc fa fb fb fb fc fc fc fc ^ ffff88806f500900: 00 00 00 00 fc fc fc fc 00 00 00 00 fc fc fc fc ffff88806f500980: 00 00 00 00 fc fc fc fc 00 00 fc fc fc fc fc fc ==================================================================