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In core_info_read and inst_info_read in all Android releases from CAF using the Linux kernel variable "dbg_buf" "dbg_buf->curr" and "dbg_buf->filled_size" could be modified by different threads at the same time but they are not protected with mutex or locks. Buffer overflow is possible on race conditions. "buffer->curr" itself could also be overwritten which means that it may point to anywhere of kernel memory (for write).

🗓️ 25 Sep 2020 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

Android CAF kernel has race conditions on debug buffer fields, risking buffer overflow and arbitrary memory write due to missing synchronization.

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ReporterTitlePublishedViews
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25 Sep 2020 07:00Current
7High risk
Vulners AI Score7
CVSS 26.9
CVSS 3.17
EPSS0.00031
2