linux: In gadget_dev_desc_UDC_show of configfs.c, there is a possible disclosure of kernel heap memory due to a race condition
CVE-2021-39648 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-39648, released December 15, 2021. It is not reported as exploited. Patch Radar priority: Routine.
In gadget_dev_desc_UDC_show of configfs.c, there is a possible disclosure of kernel heap memory due to a race condition. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-160822094References: Upstream kernel
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.10.9-1 | DEBIAN-CVE-2021-39648 | Dec 15, 2021 |
| linux · Debian 13.5 (trixie) | 5.10.9-1 | DEBIAN-CVE-2021-39648 | Dec 15, 2021 |
| linux · Debian 14 | 5.10.9-1 | DEBIAN-CVE-2021-39648 | Dec 15, 2021 |
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