EXT4-fs (loop7): Test dummy encryption mode enabled ================================================================== BUG: KASAN: use-after-free in __ext4_iget+0x3a0/0x41f0 fs/ext4/inode.c:4766 Read of size 8 at addr ffff88811beebf18 by task syz.7.1902/8149 CPU: 1 PID: 8149 Comm: syz.7.1902 Tainted: G W 5.10.232-syzkaller-00746-g49e8ba0a684f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118 print_address_description+0x81/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0x179/0x1c0 mm/kasan/report.c:452 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309 __ext4_iget+0x3a0/0x41f0 fs/ext4/inode.c:4766 ext4_quota_enable fs/ext4/super.c:6423 [inline] ext4_enable_quotas+0x56f/0x9f0 fs/ext4/super.c:6459 ext4_fill_super+0x86dc/0x9150 fs/ext4/super.c:5060 mount_bdev+0x262/0x370 fs/super.c:1442 ext4_mount+0x34/0x40 fs/ext4/super.c:6638 legacy_get_tree+0xf1/0x190 fs/fs_context.c:593 vfs_get_tree+0x88/0x290 fs/super.c:1572 do_new_mount+0x2ba/0xb30 fs/namespace.c:2917 path_mount+0x56f/0xcb0 fs/namespace.c:3247 do_mount fs/namespace.c:3260 [inline] __do_sys_mount fs/namespace.c:3468 [inline] __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3445 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3445 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fbae33dc4ca Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fbae1a4be68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fbae1a4bef0 RCX: 00007fbae33dc4ca RDX: 0000000020000140 RSI: 00000000200005c0 RDI: 00007fbae1a4beb0 RBP: 0000000020000140 R08: 00007fbae1a4bef0 R09: 0000000000004000 R10: 0000000000004000 R11: 0000000000000246 R12: 00000000200005c0 R13: 00007fbae1a4beb0 R14: 00000000000005d8 R15: 0000000020000040 Allocated by task 1243: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:430 [inline] __kasan_slab_alloc+0xb1/0xe0 mm/kasan/common.c:463 kasan_slab_alloc include/linux/kasan.h:244 [inline] slab_post_alloc_hook+0x61/0x2f0 mm/slab.h:583 slab_alloc_node mm/slub.c:2947 [inline] slab_alloc mm/slub.c:2955 [inline] kmem_cache_alloc+0x168/0x2e0 mm/slub.c:2960 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2779 [inline] f2fs_alloc_inode+0x26/0x420 fs/f2fs/super.c:1373 alloc_inode fs/inode.c:233 [inline] new_inode_pseudo+0x64/0x220 fs/inode.c:968 new_inode+0x28/0x1c0 fs/inode.c:997 f2fs_new_inode+0x126/0x14d0 fs/f2fs/namei.c:35 f2fs_mkdir+0x181/0x6a0 fs/f2fs/namei.c:758 vfs_mkdir+0x4cf/0x6c0 fs/namei.c:3790 ovl_do_mkdir fs/overlayfs/overlayfs.h:159 [inline] ovl_mkdir_real+0x52/0x1a0 fs/overlayfs/dir.c:145 ovl_workdir_create+0x3b8/0x780 fs/overlayfs/super.c:773 ovl_make_workdir fs/overlayfs/super.c:1321 [inline] ovl_get_workdir+0x396/0xe60 fs/overlayfs/super.c:1458 ovl_fill_super+0x1968/0x26d0 fs/overlayfs/super.c:1998 mount_nodev+0x57/0xf0 fs/super.c:1488 ovl_mount+0x2c/0x40 fs/overlayfs/super.c:2082 legacy_get_tree+0xf1/0x190 fs/fs_context.c:593 vfs_get_tree+0x88/0x290 fs/super.c:1572 do_new_mount+0x2ba/0xb30 fs/namespace.c:2917 path_mount+0x56f/0xcb0 fs/namespace.c:3247 do_mount fs/namespace.c:3260 [inline] __do_sys_mount fs/namespace.c:3468 [inline] __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3445 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3445 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb Last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38 __kasan_record_aux_stack+0xd3/0x100 mm/kasan/generic.c:348 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358 __call_rcu kernel/rcu/tree.c:2976 [inline] call_rcu+0x135/0x11f0 kernel/rcu/tree.c:3050 destroy_inode fs/inode.c:288 [inline] evict+0x8e8/0x9c0 fs/inode.c:629 iput_final fs/inode.c:1736 [inline] iput+0x632/0x7e0 fs/inode.c:1762 d_delete_notify include/linux/fsnotify.h:267 [inline] vfs_rmdir+0x271/0x3f0 fs/namei.c:3865 do_rmdir+0x2cf/0x5c0 fs/namei.c:3912 __do_sys_unlinkat fs/namei.c:4076 [inline] __se_sys_unlinkat fs/namei.c:4070 [inline] __x64_sys_unlinkat+0xdf/0xf0 fs/namei.c:4070 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb Second to last potentially related work creation: kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38 __kasan_record_aux_stack+0xd3/0x100 mm/kasan/generic.c:348 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358 __call_rcu kernel/rcu/tree.c:2976 [inline] call_rcu+0x135/0x11f0 kernel/rcu/tree.c:3050 destroy_inode fs/inode.c:288 [inline] evict+0x8e8/0x9c0 fs/inode.c:629 iput_final fs/inode.c:1736 [inline] iput+0x632/0x7e0 fs/inode.c:1762 f2fs_fill_super+0x67a5/0x7d90 fs/f2fs/super.c:4502 mount_bdev+0x262/0x370 fs/super.c:1442 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4548 legacy_get_tree+0xf1/0x190 fs/fs_context.c:593 vfs_get_tree+0x88/0x290 fs/super.c:1572 do_new_mount+0x2ba/0xb30 fs/namespace.c:2917 path_mount+0x56f/0xcb0 fs/namespace.c:3247 do_mount fs/namespace.c:3260 [inline] __do_sys_mount fs/namespace.c:3468 [inline] __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3445 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3445 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff88811beeb9f0 which belongs to the cache f2fs_inode_cache of size 1520 The buggy address is located 1320 bytes inside of 1520-byte region [ffff88811beeb9f0, ffff88811beebfe0) The buggy address belongs to the page: page:ffffea00046fba00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88811beecd40 pfn:0x11bee8 head:ffffea00046fba00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 dead000000000100 dead000000000122 ffff888102795c80 raw: ffff88811beecd40 0000000080130008 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 320, ts 24700371342, free_ts 0 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x166/0x180 mm/page_alloc.c:2462 get_page_from_freelist+0x2d8c/0x2f30 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x435/0xaf0 mm/page_alloc.c:5348 allocate_slab mm/slub.c:1808 [inline] new_slab+0x80/0x400 mm/slub.c:1869 new_slab_objects mm/slub.c:2627 [inline] ___slab_alloc+0x302/0x4b0 mm/slub.c:2791 __slab_alloc+0x63/0xa0 mm/slub.c:2831 slab_alloc_node mm/slub.c:2913 [inline] slab_alloc mm/slub.c:2955 [inline] kmem_cache_alloc+0x1b9/0x2e0 mm/slub.c:2960 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2779 [inline] f2fs_alloc_inode+0x26/0x420 fs/f2fs/super.c:1373 alloc_inode fs/inode.c:233 [inline] iget_locked+0x14f/0x870 fs/inode.c:1275 f2fs_iget+0x55/0x50a0 fs/f2fs/inode.c:498 f2fs_fill_super+0x4c57/0x7d90 fs/f2fs/super.c:4193 mount_bdev+0x262/0x370 fs/super.c:1442 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4548 legacy_get_tree+0xf1/0x190 fs/fs_context.c:593 vfs_get_tree+0x88/0x290 fs/super.c:1572 do_new_mount+0x2ba/0xb30 fs/namespace.c:2917 page_owner free stack trace missing Memory state around the buggy address: ffff88811beebe00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88811beebe80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88811beebf00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88811beebf80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88811beec000: fc fc fc fc fc fc fc fc fc fc fc fc 00 00 00 00 ================================================================== EXT4-fs warning (device loop7): ext4_enable_quotas:6467: Failed to enable quota tracking (type=0, err=-13, ino=3). Please run e2fsck to fix. EXT4-fs (loop7): mount failed