CVE-2021-39656

In __configfs_open_file of file.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the...

Original description

The description as published by the source.

In __configfs_open_file of file.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Affected packages

Android :linux_kernel:

[{"type":"ECOSYSTEM","events":[{"introduced":":0"},{"fixed":":2021-12-05"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

Debian DEBIAN-CVE-2021-39656 linux Fixed in: 5.10.24-1
Ubuntu UBUNTU-CVE-2021-39656 linux-azure Fixed in: 4.15.0-1115.128~14.04.1

References

advisory source.android.com
patch android.googlesource.com