netlink: 'syz.9.1038': attribute type 3 has an invalid length.
==================================================================
BUG: KASAN: use-after-free in check_igot_inode fs/ext4/inode.c:-1 [inline]
BUG: KASAN: use-after-free in __ext4_iget+0x381/0x44c0 fs/ext4/inode.c:4805
Read of size 8 at addr ffff88812ef49878 by task syz.9.1038/4304

CPU: 0 PID: 4304 Comm: syz.9.1038 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0xe2/0x130 mm/kasan/report.c:452
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 check_igot_inode fs/ext4/inode.c:-1 [inline]
 __ext4_iget+0x381/0x44c0 fs/ext4/inode.c:4805
 ext4_quota_enable fs/ext4/super.c:6451 [inline]
 ext4_enable_quotas+0x33c/0x6d0 fs/ext4/super.c:6487
 ext4_fill_super+0x84ad/0x8d70 fs/ext4/super.c:5064
 mount_bdev+0x28b/0x3a0 fs/super.c:1442
 ext4_mount+0x34/0x40 fs/ext4/super.c:6666
 legacy_get_tree+0xed/0x190 fs/fs_context.c:593
 vfs_get_tree+0x89/0x260 fs/super.c:1572
 do_new_mount+0x25a/0xa20 fs/namespace.c:3006
 path_mount+0x585/0xc90 fs/namespace.c:3336
 do_mount fs/namespace.c:3349 [inline]
 __do_sys_mount fs/namespace.c:3557 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3534
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3534
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f4dbf3cd0ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4dbde25e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4dbde25ee0 RCX: 00007f4dbf3cd0ca
RDX: 0000200000000580 RSI: 0000200000000140 RDI: 00007f4dbde25ea0
RBP: 0000200000000580 R08: 00007f4dbde25ee0 R09: 00000000008000d0
R10: 00000000008000d0 R11: 0000000000000246 R12: 0000200000000140
R13: 00007f4dbde25ea0 R14: 0000000000000590 R15: 0000200000000040

Allocated by task 1749:
 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+0xbd/0xf0 mm/kasan/common.c:463
 kasan_slab_alloc include/linux/kasan.h:244 [inline]
 slab_post_alloc_hook+0x5d/0x2f0 mm/slab.h:580
 slab_alloc_node mm/slub.c:2952 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 kmem_cache_alloc+0x162/0x2d0 mm/slub.c:2965
 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2783 [inline]
 f2fs_alloc_inode+0x26/0x410 fs/f2fs/super.c:1392
 alloc_inode fs/inode.c:233 [inline]
 new_inode_pseudo+0x62/0x210 fs/inode.c:968
 new_inode+0x28/0x1e0 fs/inode.c:997
 f2fs_new_inode+0xf3/0x1420 fs/f2fs/namei.c:35
 __f2fs_tmpfile+0x105/0x4d0 fs/f2fs/namei.c:862
 f2fs_create_whiteout fs/f2fs/namei.c:933 [inline]
 f2fs_rename fs/f2fs/namei.c:976 [inline]
 f2fs_rename2+0x889/0x23f0 fs/f2fs/namei.c:1316
 vfs_rename+0xa66/0xf50 fs/namei.c:4482
 ovl_do_rename fs/overlayfs/overlayfs.h:219 [inline]
 ovl_check_rename_whiteout fs/overlayfs/super.c:1237 [inline]
 ovl_make_workdir fs/overlayfs/super.c:1356 [inline]
 ovl_get_workdir+0x6c4/0xda0 fs/overlayfs/super.c:1458
 ovl_fill_super+0x15ff/0x2560 fs/overlayfs/super.c:1998
 mount_nodev+0x5c/0xf0 fs/super.c:1488
 ovl_mount+0x2c/0x40 fs/overlayfs/super.c:2082
 legacy_get_tree+0xed/0x190 fs/fs_context.c:593
 vfs_get_tree+0x89/0x260 fs/super.c:1572
 do_new_mount+0x25a/0xa20 fs/namespace.c:3006
 path_mount+0x585/0xc90 fs/namespace.c:3336
 do_mount fs/namespace.c:3349 [inline]
 __do_sys_mount fs/namespace.c:3557 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3534
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3534
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Last potentially related work creation:
 kasan_save_stack+0x3a/0x60 mm/kasan/common.c:38
 __kasan_record_aux_stack+0xd2/0x100 mm/kasan/generic.c:348
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
 __call_rcu kernel/rcu/tree.c:2980 [inline]
 call_rcu+0x11a/0x10b0 kernel/rcu/tree.c:3054
 destroy_inode fs/inode.c:288 [inline]
 evict+0x881/0x930 fs/inode.c:629
 iput_final fs/inode.c:1736 [inline]
 iput+0x638/0x7c0 fs/inode.c:1762
 dentry_unlink_inode+0x2cf/0x380 fs/dcache.c:378
 __dentry_kill+0x44f/0x650 fs/dcache.c:583
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x42/0x80 fs/dcache.c:883
 ovl_check_rename_whiteout fs/overlayfs/super.c:1254 [inline]
 ovl_make_workdir fs/overlayfs/super.c:1356 [inline]
 ovl_get_workdir+0x7a5/0xda0 fs/overlayfs/super.c:1458
 ovl_fill_super+0x15ff/0x2560 fs/overlayfs/super.c:1998
 mount_nodev+0x5c/0xf0 fs/super.c:1488
 ovl_mount+0x2c/0x40 fs/overlayfs/super.c:2082
 legacy_get_tree+0xed/0x190 fs/fs_context.c:593
 vfs_get_tree+0x89/0x260 fs/super.c:1572
 do_new_mount+0x25a/0xa20 fs/namespace.c:3006
 path_mount+0x585/0xc90 fs/namespace.c:3336
 do_mount fs/namespace.c:3349 [inline]
 __do_sys_mount fs/namespace.c:3557 [inline]
 __se_sys_mount+0x320/0x390 fs/namespace.c:3534
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3534
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff88812ef49350
 which belongs to the cache f2fs_inode_cache of size 1520
The buggy address is located 1320 bytes inside of
 1520-byte region [ffff88812ef49350, ffff88812ef49940)
The buggy address belongs to the page:
page:ffffea0004bbd200 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88812ef4a6a0 pfn:0x12ef48
head:ffffea0004bbd200 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head)
raw: 4000000000010200 0000000000000000 0000000100000001 ffff888102789680
raw: ffff88812ef4a6a0 000000008013000f 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 1749, ts 84248351024, free_ts 81383001779
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x179/0x180 mm/page_alloc.c:2462
 get_page_from_freelist+0x223b/0x23d0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x290/0x620 mm/page_alloc.c:5384
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1813 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1874
 new_slab_objects mm/slub.c:2632 [inline]
 ___slab_alloc+0x2a6/0x450 mm/slub.c:2796
 __slab_alloc+0x63/0xa0 mm/slub.c:2836
 slab_alloc_node mm/slub.c:2918 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 kmem_cache_alloc+0x1ac/0x2d0 mm/slub.c:2965
 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2783 [inline]
 f2fs_alloc_inode+0x26/0x410 fs/f2fs/super.c:1392
 alloc_inode fs/inode.c:233 [inline]
 new_inode_pseudo+0x62/0x210 fs/inode.c:968
 new_inode+0x28/0x1e0 fs/inode.c:997
 f2fs_new_inode+0xf3/0x1420 fs/f2fs/namei.c:35
 f2fs_create+0x1fd/0x1a00 fs/f2fs/namei.c:357
 vfs_create+0x3a7/0x530 fs/namei.c:2958
 ovl_do_create fs/overlayfs/overlayfs.h:150 [inline]
 ovl_create_real+0x221/0x280 fs/overlayfs/dir.c:187
 ovl_create_temp+0x4e/0x60 fs/overlayfs/dir.c:228
 ovl_check_rename_whiteout fs/overlayfs/super.c:1223 [inline]
 ovl_make_workdir fs/overlayfs/super.c:1356 [inline]
 ovl_get_workdir+0x60e/0xda0 fs/overlayfs/super.c:1458
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1349 [inline]
 __free_pages_ok+0x80b/0x830 mm/page_alloc.c:1629
 free_the_page mm/page_alloc.c:5445 [inline]
 __free_pages+0xd8/0x3b0 mm/page_alloc.c:5454
 __free_slab+0xcf/0x190 mm/slub.c:1899
 free_slab mm/slub.c:1914 [inline]
 discard_slab+0x29/0x40 mm/slub.c:1920
 __slab_free+0x313/0x3a0 mm/slub.c:3136
 do_slab_free mm/slub.c:3196 [inline]
 ___cache_free+0x10e/0x130 mm/slub.c:3215
 qlink_free+0x50/0x90 mm/kasan/quarantine.c:157
 qlist_free_all+0x5f/0xb0 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x14a/0x160 mm/kasan/quarantine.c:283
 __kasan_slab_alloc+0x2f/0xf0 mm/kasan/common.c:440
 kasan_slab_alloc include/linux/kasan.h:244 [inline]
 slab_post_alloc_hook+0x5d/0x2f0 mm/slab.h:580
 slab_alloc_node mm/slub.c:2952 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 __kmalloc+0x180/0x330 mm/slub.c:4034
 kmalloc include/linux/slab.h:560 [inline]
 kzalloc include/linux/slab.h:667 [inline]
 rh_call_control drivers/usb/core/hcd.c:514 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:849 [inline]
 usb_hcd_submit_urb+0x74d/0x1780 drivers/usb/core/hcd.c:1554
 usb_submit_urb+0x107b/0x1580 drivers/usb/core/urb.c:585
 usb_start_wait_urb+0x128/0x370 drivers/usb/core/message.c:61
 usb_internal_control_msg drivers/usb/core/message.c:116 [inline]
 usb_control_msg+0x243/0x3f0 drivers/usb/core/message.c:166

Memory state around the buggy address:
 ffff88812ef49700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88812ef49780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88812ef49800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                                ^
 ffff88812ef49880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88812ef49900: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================
EXT4-fs warning (device loop9): ext4_enable_quotas:6495: Failed to enable quota tracking (type=0, err=-13, ino=3). Please run e2fsck to fix.
EXT4-fs (loop9): mount failed