loop0: detected capacity change from 0 to 4096 ntfs3(loop0): Different NTFS sector size (1024) and media sector size (512). overlayfs: upper fs does not support tmpfile. overlayfs: upper fs does not support RENAME_WHITEOUT. ================================================================== BUG: KASAN: out-of-bounds in __wait_on_bit+0xdf/0x2f0 kernel/sched/wait_bit.c:50 Read of size 8 at addr ffffc9000d285920 by task syz.0.0/5321 CPU: 0 UID: 0 PID: 5321 Comm: syz.0.0 Not tainted 6.13.0-rc3-syzkaller-00044-gaef25be35d23 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 __wait_on_bit+0xdf/0x2f0 kernel/sched/wait_bit.c:50 out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:105 [inline] __wait_on_buffer fs/buffer.c:123 [inline] wait_on_buffer include/linux/buffer_head.h:414 [inline] __sync_dirty_buffer+0x2f7/0x390 fs/buffer.c:2858 ntfs_write_bh+0x5f7/0x7c0 fs/ntfs3/fsntfs.c:1481 mi_write+0x9b/0x1e0 fs/ntfs3/record.c:397 indx_update_dup+0x69a/0x860 fs/ntfs3/index.c:2699 ni_update_parent+0xa18/0xdd0 fs/ntfs3/frecord.c:3224 ni_write_inode+0xd9f/0x1020 fs/ntfs3/frecord.c:3315 write_inode fs/fs-writeback.c:1525 [inline] __writeback_single_inode+0x708/0x10d0 fs/fs-writeback.c:1745 writeback_single_inode+0x1f3/0x660 fs/fs-writeback.c:1801 sync_inode_metadata+0xc4/0x120 fs/fs-writeback.c:2871 __generic_file_fsync+0x134/0x1a0 fs/libfs.c:1543 generic_file_fsync+0x70/0xf0 fs/libfs.c:1573 ovl_sync_file+0x3a/0x50 fs/overlayfs/copy_up.c:254 ovl_copy_up_metadata+0xac1/0xef0 fs/overlayfs/copy_up.c:724 ovl_copy_up_workdir fs/overlayfs/copy_up.c:816 [inline] ovl_do_copy_up fs/overlayfs/copy_up.c:1001 [inline] ovl_copy_up_one fs/overlayfs/copy_up.c:1202 [inline] ovl_copy_up_flags+0x2099/0x46f0 fs/overlayfs/copy_up.c:1257 ovl_open+0x139/0x310 fs/overlayfs/file.c:211 do_dentry_open+0xbe1/0x1b70 fs/open.c:945 vfs_open+0x3e/0x330 fs/open.c:1075 dentry_open+0x61/0xa0 fs/open.c:1098 ima_calc_file_hash+0x16b/0x1b30 security/integrity/ima/ima_crypto.c:553 ima_collect_measurement+0x520/0xb10 security/integrity/ima/ima_api.c:293 process_measurement+0x1351/0x1fb0 security/integrity/ima/ima_main.c:372 ima_file_check+0xd9/0x120 security/integrity/ima/ima_main.c:572 security_file_post_open+0xb9/0x280 security/security.c:3121 do_open fs/namei.c:3830 [inline] path_openat+0x2ccd/0x3590 fs/namei.c:3987 do_filp_open+0x27f/0x4e0 fs/namei.c:4014 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1428 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fad00b85d29 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:00007fad0191c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fad00d75fa0 RCX: 00007fad00b85d29 RDX: 0000000000000083 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007fad00c01a20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fad00d75fa0 R15: 00007ffd8ebe3908 The buggy address belongs to stack of task syz.0.0/5321 and is located at offset 32 in frame: out_of_line_wait_on_bit+0x0/0x260 This frame has 1 object: [32, 96) 'wq_entry' The buggy address belongs to the virtual mapping at [ffffc9000d280000, ffffc9000d289000) created by: copy_process+0x5d1/0x3d50 kernel/fork.c:2225 The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880402e1e00 pfn:0x402e1 memcg:ffff888040fc0c02 flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) raw: 04fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: ffff8880402e1e00 0000000000000000 00000001ffffffff ffff888040fc0c02 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 5320, tgid 5320 (syz.0.0), ts 67059101808, free_ts 66755230453 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556 prep_new_page mm/page_alloc.c:1564 [inline] get_page_from_freelist+0x365c/0x37a0 mm/page_alloc.c:3474 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2269 vm_area_alloc_pages mm/vmalloc.c:3589 [inline] __vmalloc_area_node mm/vmalloc.c:3667 [inline] __vmalloc_node_range_noprof+0x9c9/0x1380 mm/vmalloc.c:3844 alloc_thread_stack_node kernel/fork.c:314 [inline] dup_task_struct+0x444/0x8c0 kernel/fork.c:1121 copy_process+0x5d1/0x3d50 kernel/fork.c:2225 kernel_clone+0x226/0x8e0 kernel/fork.c:2807 __do_sys_clone3 kernel/fork.c:3111 [inline] __se_sys_clone3+0x2d8/0x360 kernel/fork.c:3090 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5305 tgid 5305 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2657 discard_slab mm/slub.c:2688 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3157 put_cpu_partial+0x17c/0x250 mm/slub.c:3232 __slab_free+0x290/0x380 mm/slub.c:4483 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] kmem_cache_alloc_node_noprof+0x1d9/0x380 mm/slub.c:4220 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:668 netlink_sendmsg+0x638/0xcb0 net/netlink/af_netlink.c:1866 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 __sys_sendto+0x363/0x4c0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xde/0x100 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffffc9000d285800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000d285880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffc9000d285900: f1 f1 f1 f1 00 00 00 00 00 00 00 00 f3 f3 f3 f3 ^ ffffc9000d285980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000d285a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================