Michael Forney
2022-Mar-01 20:55 UTC
[syslinux] [PATCH] mboot: Fix lfree() of global, corrupting VBE mode info
mi is freed at the end of this function, and is not used after this assignment. Setting mi to the address of the global vesa_info.mi here results in corruption of VBE info passed to the kernel. Signed-off-by: Michael Forney <mforney at mforney.org> --- com32/mboot/initvesa.c | 1 - 1 file changed, 1 deletion(-) diff --git a/com32/mboot/initvesa.c b/com32/mboot/initvesa.c index 9111ec27..ae7c160e 100644 --- a/com32/mboot/initvesa.c +++ b/com32/mboot/initvesa.c @@ -190,7 +190,6 @@ void set_graphics_mode(const struct multiboot_header *mbh, if (!bestpxf) goto out; /* No mode found */ - mi = &vesa_info.mi; mode = bestmode; /* Now set video mode */ -- 2.34.1