linux: In ion_buffer_kmap_get of ion.c, there is a possible use-after-free due to an integer overflow
CVE-2021-39714 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-39714, released March 16, 2022. It is not reported as exploited. Patch Radar priority: High.
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
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 4.12.6-1 | DEBIAN-CVE-2021-39714 | Mar 16, 2022 |
| linux · Debian 13.5 (trixie) | 4.12.6-1 | DEBIAN-CVE-2021-39714 | Mar 16, 2022 |
| linux · Debian 14 | 4.12.6-1 | DEBIAN-CVE-2021-39714 | Mar 16, 2022 |
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