EXT4-fs warning (device loop0): ext4_expand_extra_isize_ea:2809: Unable to expand inode 15. Delete some EAs or run e2fsck.
EXT4-fs (loop0): 1 truncate cleaned up
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback.
==================================================================
BUG: KASAN: out-of-bounds in ext4_xattr_set_entry+0x8ca/0x1f30 fs/ext4/xattr.c:1732
Read of size 18446744073709551572 at addr ffff88807772e050 by task syz.0.15/5084

CPU: 1 PID: 5084 Comm: syz.0.15 Not tainted 6.1.114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:395
 kasan_report+0x136/0x160 mm/kasan/report.c:495
 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189
 memmove+0x25/0x60 mm/kasan/shadow.c:54
 ext4_xattr_set_entry+0x8ca/0x1f30 fs/ext4/xattr.c:1732
 ext4_xattr_block_set+0xa58/0x3920 fs/ext4/xattr.c:1979
 ext4_xattr_move_to_block fs/ext4/xattr.c:2616 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2691 [inline]
 ext4_expand_extra_isize_ea+0x10d5/0x1bb0 fs/ext4/xattr.c:2783
 __ext4_expand_extra_isize+0x2f7/0x3d0 fs/ext4/inode.c:5936
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5979 [inline]
 __ext4_mark_inode_dirty+0x54f/0x920 fs/ext4/inode.c:6057
 __ext4_unlink+0x6ed/0xba0 fs/ext4/namei.c:3341
 ext4_unlink+0x1d5/0x670 fs/ext4/namei.c:3370
 vfs_unlink+0x359/0x5f0 fs/namei.c:4322
 do_unlinkat+0x4a5/0x820 fs/namei.c:4390
 __do_sys_unlink fs/namei.c:4438 [inline]
 __se_sys_unlink fs/namei.c:4436 [inline]
 __x64_sys_unlink+0x45/0x50 fs/namei.c:4436
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9c5437e719
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:00007f9c541ff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007f9c54535f80 RCX: 00007f9c5437e719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007f9c543f132e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9c54535f80 R15: 00007ffe523ca858
 </TASK>

Allocated by task 5084:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:936 [inline]
 __kmalloc_node_track_caller+0xb1/0x220 mm/slab_common.c:956
 kmemdup+0x26/0x60 mm/util.c:129
 ext4_xattr_block_set+0x884/0x3920 fs/ext4/xattr.c:1927
 ext4_xattr_move_to_block fs/ext4/xattr.c:2616 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2691 [inline]
 ext4_expand_extra_isize_ea+0x10d5/0x1bb0 fs/ext4/xattr.c:2783
 __ext4_expand_extra_isize+0x2f7/0x3d0 fs/ext4/inode.c:5936
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5979 [inline]
 __ext4_mark_inode_dirty+0x54f/0x920 fs/ext4/inode.c:6057
 __ext4_unlink+0x6ed/0xba0 fs/ext4/namei.c:3341
 ext4_unlink+0x1d5/0x670 fs/ext4/namei.c:3370
 vfs_unlink+0x359/0x5f0 fs/namei.c:4322
 do_unlinkat+0x4a5/0x820 fs/namei.c:4390
 __do_sys_unlink fs/namei.c:4438 [inline]
 __se_sys_unlink fs/namei.c:4436 [inline]
 __x64_sys_unlink+0x45/0x50 fs/namei.c:4436
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff88807772e000
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 80 bytes inside of
 1024-byte region [ffff88807772e000, ffff88807772e400)

The buggy address belongs to the physical page:
page:ffffea0001ddca00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x77728
head:ffffea0001ddca00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea0001ed5200 dead000000000002 ffff888017c41dc0
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4263, tgid 4263 (syz-executor), ts 63590183547, free_ts 30035506525
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2517
 prep_new_page mm/page_alloc.c:2524 [inline]
 get_page_from_freelist+0x322e/0x33b0 mm/page_alloc.c:4290
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5558
 alloc_slab_page+0x6a/0x150 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x84/0x2d0 mm/slub.c:1992
 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:557 [inline]
 kzalloc include/linux/slab.h:693 [inline]
 find_css_set+0xb01/0x1710 kernel/cgroup/cgroup.c:1225
 cgroup_migrate_prepare_dst+0x120/0x680 kernel/cgroup/cgroup.c:2822
 cgroup_attach_task+0x5e3/0x970 kernel/cgroup/cgroup.c:2928
 __cgroup_procs_write+0x28e/0x4a0 kernel/cgroup/cgroup.c:5182
 cgroup_procs_write+0x25/0x50 kernel/cgroup/cgroup.c:5195
 cgroup_file_write+0x2c6/0x6c0 kernel/cgroup/cgroup.c:4081
 kernfs_fop_write_iter+0x3a2/0x4f0 fs/kernfs/file.c:334
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x857/0xbc0 fs/read_write.c:584
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1444 [inline]
 free_pcp_prepare mm/page_alloc.c:1494 [inline]
 free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3369
 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3464
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 __kmem_cache_alloc_node+0x137/0x260 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc_node+0xa2/0x230 mm/slab_common.c:943
 kmalloc_node include/linux/slab.h:583 [inline]
 kvmalloc_node+0x6e/0x180 mm/util.c:581
 kvmalloc include/linux/slab.h:710 [inline]
 seq_buf_alloc fs/seq_file.c:38 [inline]
 seq_read_iter+0x1fe/0xd10 fs/seq_file.c:210
 call_read_iter include/linux/fs.h:2259 [inline]
 new_sync_read fs/read_write.c:389 [inline]
 vfs_read+0x88d/0xbf0 fs/read_write.c:470
 ksys_read+0x19c/0x2c0 fs/read_write.c:613
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Memory state around the buggy address:
 ffff88807772df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88807772df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88807772e000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                 ^
 ffff88807772e080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88807772e100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================