CVEvulnerability
CVE-2017-8246
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2017-05-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-416
Description
In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream->runtime->private_data. Later, prtd is freed. However, prtd is not sanitized and set to NULL, resulting in a dangling pointer. There are other functions that access the same memory (substream->runtime->private_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used.
Affected configurations
• google android
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://source.android.com/security/bulletin/2017-07-01 Vendor Advisory
- https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 Broken Link
- https://source.android.com/security/bulletin/2017-07-01 Vendor Advisory
- https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246 Broken Link