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Change History

In the Linux kernel, the following vulnerability has been resolved:

drivers/perf: hisi_pcie: Fix out-of-bound access when valid event group

The perf tool allows users to create event groups through following
cmd [1], but the driver does not check whether the array index is out of
bounds when writing data to the event_group array. If the number of events
in an event_group is greater than HISI_PCIE_MAX_COUNTERS, the memory write
overflow of event_group array occurs.

Add array index check to fix

kernel.org https://git.kernel.org/stable/c/3d1face00ebb7996842aee4214d7d0fb0c77b1e9 [No types assigned]

kernel.org https://git.kernel.org/stable/c/567d34626c22b36579ec0abfdf5eda2949044220 [No types assigned]

kernel.org https://git.kernel.org/stable/c/77fce82678ea5fd51442e62febec2004f79e041b [No types assigned]

kernel.org https://git.kernel.org/stable/c/8e9aab2492178f25372f1820bfd9289fbd74efd0 [No types assigned]

kernel.org https://git.kernel.org/stable/c/ff48247144d13a3a0817127703724256008efa78 [No types assigned]