Gentoo Linux Security Advisory 202107-15 - A buffer overflow in blktrace might allow arbitrary code execution. Versions less than 1.2.0_p20210419122502 are affected.
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Red Hat Security Advisory 2019-2162-01 - The blktrace packages contain a number of utilities to record the I/O trace information for the kernel to user space, and utilities to analyze and view the trace information. Issues addressed include a buffer overflow vulnerability.
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