CVE-2021-47470 Information

Description

In the Linux kernel the following vulnerability has been resolved:

mm slub: fix potential use-after-free in slab_debugfs_fops

When sysfs_slab_add failed we shouldn’t call debugfs_slab_add() for s because s will be freed soon. And slab_debugfs_fops will use s later leading to a use-after-free.

Reference

https://git.kernel.org/stable/c/159d8cfbd0428d487c53be4722f33cdab0d25d83 https://git.kernel.org/stable/c/67823a544414def2a36c212abadb55b23bcda00c