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BUG: KASAN: slab-out-of-bounds in ext4_xattr_set_entry+0x13e2/0x1ed6 fs/ext4/xattr.c:1750
Write of size 4117 at addr ffffffe00daedee8 by task syz-executor.1/7616

CPU: 0 PID: 7616 Comm: syz-executor.1 Not tainted 5.15.0-rc1-syzkaller #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff8000957e>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:112

Allocated by task 2774:
(stack is not available)

The buggy address belongs to the object at ffffffe00daede80
 which belongs to the cache kernfs_node_cache of size 168
The buggy address is located 104 bytes inside of
 168-byte region [ffffffe00daede80, ffffffe00daedf28)
The buggy address belongs to the page:
page:ffffffcf02373b40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8dced
flags: 0xffe000000000200(slab|node=0|zone=0|lastcpupid=0x7ff)
raw: 0ffe000000000200 0000000000000100 0000000000000122 ffffffe0056d7280
raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 2260, ts 1078522194400, free_ts 1078515237900
page_owner allocation stack trace missing
page_owner free stack trace missing

Memory state around the buggy address:
 ffffffe00daede00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
 ffffffe00daede80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffe00daedf00: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
                                  ^
 ffffffe00daedf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffffffe00daee000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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