Race condition in Pixel - CVE-2021-39735
Published: July 11, 2022 / Updated: July 11, 2022
Vulnerability identifier: #VU65107
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-39735
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Google
Affected software:
Pixel
Pixel
Detailed vulnerability description
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a race condition in gasket_alloc_coherent_memory of gasket_page_table.c. A local application with system privileges can exploit the race and escalate privileges on the system.
How to mitigate CVE-2021-39735
Install updates from vendor's website.