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 kernel…

PriorityP428medium6.7CVSS 3.1

AVLACLPRHUINSUCHIHAH

EPSS

0.12%

2.2th percentile

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.Product: AndroidVersions: Android kernelAndroid ID: A-174049066References: Upstream kernel

Affected

5 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 5.10.24-1 (bookworm)	linux 5.10.24-1 (bookworm)
linux	linux_kernel	>= 0 < 5.10.24-1	5.10.24-1
linux	linux_kernel	>= 0 < 5.10.24-1	5.10.24-1
linux	linux_kernel	>= 0 < 5.10.24-1	5.10.24-1
linux	linux_kernel	>= 0 < 5.10.24-1	5.10.24-1

CVSS provenance

nvdv3.16.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

osv6.7MEDIUM

vendor_debian6.7MEDIUM

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