This series fixes possible out-of-bound memory accesses when users trigger screen resolutions changes with invalid input parameters, e.g. reconfigures screen which is smaller than the current font size, or if the virtual screen size is smaller than the physical screen size. Helge Deller (4): fbcon: Disallow setting font bigger than screen size fbcon: Add fbcon_modechange_possible() check fbmem: Check screen resolution change against font size fbmem: Prevent invalid virtual screen sizes drivers/video/fbdev/core/fbcon.c | 32 ++++++++++++++++++++++++++++++++ drivers/video/fbdev/core/fbmem.c | 10 +++++++++- include/linux/fbcon.h | 4 ++++ 3 files changed, 45 insertions(+), 1 deletion(-) -- 2.35.3
