linux: In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free
CVE-2022-20421 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-20421, released October 11, 2022. It is not reported as exploited. Patch Radar priority: High.
In binder_inc_ref_for_node of binder.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-239630375References: Upstream kernel
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.19.11-1 | DEBIAN-CVE-2022-20421 | Oct 11, 2022 |
| linux · Debian 13.5 (trixie) | 5.19.11-1 | DEBIAN-CVE-2022-20421 | Oct 11, 2022 |
| linux · Debian 14 | 5.19.11-1 | DEBIAN-CVE-2022-20421 | Oct 11, 2022 |
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