Bug 2106094 (CVE-2021-39714) - CVE-2021-39714 kernel: use-after-free due to an integer overflow in ion_buffer_kmap_get() in ion.c
Summary: CVE-2021-39714 kernel: use-after-free due to an integer overflow in ion_buffe...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2021-39714
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Whiteboard:
Depends On:
Blocks: 2106095
TreeView+ depends on / blocked
 
Reported: 2022-07-11 18:40 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-03-14 18:30 UTC (History)
48 users (show)

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Last Closed: 2022-08-30 01:55:55 UTC
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Description Guilherme de Almeida Suckevicz 2022-07-11 18:40:12 UTC 
In ion_buffer_kmap_get of ion.c, there is a possible use-after-free due to an integer overflow. 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-205573273References: Upstream kernel

Reference:
https://source.android.com/security/bulletin/pixel/2022-03-01
Comment 3 Product Security DevOps Team 2022-08-30 01:55:52 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-39714
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