loop8: detected capacity change from 0 to 512
EXT4-fs (loop8): feature flags set on rev 0 fs, running e2fsck is recommended
==================================================================
BUG: KASAN: slab-out-of-bounds in check_igot_inode fs/ext4/inode.c:-1 [inline]
BUG: KASAN: slab-out-of-bounds in __ext4_iget+0x2b8/0x3d80 fs/ext4/inode.c:4704
Read of size 8 at addr ffff8881119faf78 by task syz.8.632/2677

CPU: 1 PID: 2677 Comm: syz.8.632 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0xf1/0x140 mm/kasan/report.c:444
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
 check_igot_inode fs/ext4/inode.c:-1 [inline]
 __ext4_iget+0x2b8/0x3d80 fs/ext4/inode.c:4704
 ext4_quota_enable fs/ext4/super.c:6406 [inline]
 ext4_enable_quotas+0x33b/0x6d0 fs/ext4/super.c:6442
 ext4_fill_super+0x8761/0x9030 fs/ext4/super.c:4949
 mount_bdev+0x2ae/0x3e0 fs/super.c:1400
 ext4_mount+0x34/0x40 fs/ext4/super.c:6621
 legacy_get_tree+0xed/0x190 fs/fs_context.c:611
 vfs_get_tree+0x89/0x260 fs/super.c:1530
 do_new_mount+0x25a/0xa20 fs/namespace.c:3014
 path_mount+0x675/0x1020 fs/namespace.c:3344
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount+0x318/0x380 fs/namespace.c:3542
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3542
 x64_sys_call+0x6bf/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f215b50938a
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:00007f2159f6fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2159f6fef0 RCX: 00007f215b50938a
RDX: 0000200000000100 RSI: 00002000000003c0 RDI: 00007f2159f6feb0
RBP: 0000200000000100 R08: 00007f2159f6fef0 R09: 0000000002000002
R10: 0000000002000002 R11: 0000000000000246 R12: 00002000000003c0
R13: 00007f2159f6feb0 R14: 0000000000000560 R15: 0000200000000080
 </TASK>

Allocated by task 0:
(stack is not available)

The buggy address belongs to the object at ffff8881119faa70
 which belongs to the cache f2fs_inode_cache of size 1424
The buggy address is located 1288 bytes inside of
 1424-byte region [ffff8881119faa70, ffff8881119fb000)
The buggy address belongs to the page:
page:ffffea0004467e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8881119fd4e0 pfn:0x1119f8
head:ffffea0004467e00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 0000000000000000 dead000000000122 ffff8881081fd380
raw: ffff8881119fd4e0 0000000080150013 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 347, ts 32365527816, free_ts 0
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2605
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2611
 get_page_from_freelist+0x2cc5/0x2d50 mm/page_alloc.c:4485
 __alloc_pages+0x18f/0x440 mm/page_alloc.c:5795
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1932 [inline]
 new_slab+0xa1/0x4d0 mm/slub.c:1995
 ___slab_alloc+0x381/0x810 mm/slub.c:3028
 __slab_alloc+0x49/0x90 mm/slub.c:3115
 slab_alloc_node mm/slub.c:3206 [inline]
 slab_alloc mm/slub.c:3250 [inline]
 kmem_cache_alloc+0x138/0x260 mm/slub.c:3255
 f2fs_kmem_cache_alloc fs/f2fs/f2fs.h:2814 [inline]
 f2fs_alloc_inode+0x26/0x330 fs/f2fs/super.c:1438
 alloc_inode fs/inode.c:264 [inline]
 iget_locked+0x16c/0x7e0 fs/inode.c:1318
 f2fs_iget+0x55/0x5130 fs/f2fs/inode.c:510
 f2fs_fill_super+0x3a20/0x6d10 fs/f2fs/super.c:4322
 mount_bdev+0x2ae/0x3e0 fs/super.c:1400
 f2fs_mount+0x34/0x40 fs/f2fs/super.c:4682
 legacy_get_tree+0xed/0x190 fs/fs_context.c:611
 vfs_get_tree+0x89/0x260 fs/super.c:1530
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8881119fae00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881119fae80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8881119faf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff8881119faf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8881119fb000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
EXT4-fs warning (device loop8): ext4_enable_quotas:6450: Failed to enable quota tracking (type=0, err=-13, ino=3). Please run e2fsck to fix.
EXT4-fs (loop8): mount failed