CVE-2021-0929

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In ion_dma_buf_end_cpu_access and related functions of ion.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-187527909References: Upstream kernel

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Dec 15, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-09308.8In phNxpNciHal_process_ext_rsp of phNxpNciHal_ext.cc, there is a possible out of bounds write due to a missing bounds check. This could leadCVE-2021-09315.5In getAlias of BluetoothDevice.java, there is a possible way to create misleading permission dialogs due to missing data filtering. This couCVE-2021-09327.8In showNotification of NavigationModeController.java, there is a possible confused deputy due to an unsafe PendingIntent. This could lead toCVE-2021-09338.0In onCreate of CompanionDeviceActivity.java or DeviceChooserActivity.java, there is a possible way for HTML tags to interfere with a consentCVE-2021-09345.5In findAllDeAccounts of AccountsDb.java, there is a possible denial of service due to resource exhaustion. This could lead to local denial oCVE-2021-09356.7In ip6_xmit of ip6_output.c, there is a possible out of bounds write due to a use after free. This could lead to local escalation of privileCVE-2021-09367.8In acc_read of f_accessory.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilegCVE-2021-09385.5In memzero_explicit of compiler-clang.h, there is a possible bypass of defense in depth due to uninitialized data. This could lead to local CVE-2021-09394.4In set_default_passthru_cfg of passthru.c, there is a possible out of bounds read due to a missing bounds check. This could lead to local inCVE-2021-09406.7In TBD of TBD, there is a possible out of bounds write due to improper locking. This could lead to local escalation of privilege in the kernCVE-2021-09416.7In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of pCVE-2021-09429.8The path in this case is a little bit convoluted. The end result is that via an ioctl an untrusted app can control the ui32PageIndex offset
CVE-2021-0929: High severity, CVSS 7.8 | Vulnix