CVE-2023-52839

CVE-2023-52839 describes a Linux kernel vulnerability in perf where broadcasting to other CPUs when starting a counter was removed as part of a fix (commit 3fec323339a4). Root cause: unnecessary broadcast in perf code could lead to a warning and potential instability; fix eliminates the broadcast...

CVE-2023-52839

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Do not broadcast to other cpus when starting a counter This command: $ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000 gives rise to this kernel warning: 444.364395...