CVE-2023-52797

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Check findfirstbit return value We must check the return value of findfirstbit before using the return value as an index array since it happens to overflow the array and then panic: 107.318430 Kernel BUG 1 107.3194...

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...

CVE-2023-52860

CVE-2023-52860 relates to the Linux kernel; the root issue occurs in the perf driver when tearing down a hisi_hns3 PMU, where CPU hotplug callbacks could run after the PMU is unregistered, leading to a NULL pointer dereference. The fix uses cpuhp_state_remove_instance_nocalls() instead of cpuhp_s...

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-2023-52797

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Check findfirstbit return value We must check the return value of findfirstbit before using the return value as an index array since it happens to overflow the array and then panic: 107.318430 Kernel BUG 1 107.3194...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel, which stems from a vulnerability in the drivers:perf module...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel, which stems from a vulnerability in the drivers:perf module...