Do not go beyond ARRAY_SIZE of cpu->arch.gdt
Signed-off-by: Roel Kluin <[email protected]> --- diff --git a/drivers/lguest/segments.c b/drivers/lguest/segments.c index 7ede64f..482ed5a 100644 --- a/drivers/lguest/segments.c +++ b/drivers/lguest/segments.c @@ -150,7 +150,7 @@ void load_guest_gdt_entry(struct lg_cpu *cpu, u32 num, u32 lo, u32 hi) { /* We assume the Guest has the same number of GDT entries as the * Host, otherwise we'd have to dynamically allocate the Guest GDT. */ - if (num > ARRAY_SIZE(cpu->arch.gdt)) + if (num >= ARRAY_SIZE(cpu->arch.gdt)) kill_guest(cpu, "too many gdt entries %i", num); /* Set it up, then fix it. */ _______________________________________________ Lguest mailing list [email protected] https://ozlabs.org/mailman/listinfo/lguest
