In the Linux kernel, the following vulnerability has been resolved: ptp: fix integer overflow in max_vclocks_store On 32bit systems, the "4 * max" multiply can overflow. Use kcalloc() to do the allocation to prevent this.
https://git.kernel.org/stable/c/e1fccfb4638ee6188377867f6015d0ce35764a8e
https://git.kernel.org/stable/c/d50d62d5e6ee6aa03c00bddb91745d0b632d3b0f
https://git.kernel.org/stable/c/81d23d2a24012e448f651e007fac2cfd20a45ce0
https://git.kernel.org/stable/c/666e934d749e50a37f3796caaf843a605f115b6f
https://git.kernel.org/stable/c/4b03da87d0b7074c93d9662c6e1a8939f9b8b86e