CVE-2022-50102

CVE-2022-50102 affects the Linux kernel’s fbdev arkfb driver. A user-controlled ioctl can cause a divide-by-zero in ark_set_pixclock, e.g. with hdiv=1, pixclock=1, hmul=2, producing (1*1)/2 = 0 and leading to division by zero later in arkfb.c when computing 1000000000 / pixclock. The vulnerabilit...

CVE-2022-50010

CVE-2022-50010 affects the Linux kernel’s fbdev i740fb driver. If a user space ioctl supplies a pixclock value causing the argument to i740_calc_vclk() to be less than I740_RFREQ_FIX, a divide-by-zero can occur in p_best calculation (drivers/video/fbdev/i740fb.c:353). The vulnerability arises bec...