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Kernel: Prevent mmap-ing as both fixed and randomized

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Sahan Fernando 2021-01-29 10:28:27 +11:00 • committed by Andreas Kling
parent 22b0ff05d4
commit 6876b9a514
1 changed files with 3 additions and 0 deletions
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3
Kernel/Syscalls/mmap.cpp
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@ -128,6 +128,9 @@ void* Process::sys$mmap(Userspace<const Syscall::SC_mmap_params*> user_params)
if (!map_shared && !map_private)
return (void*)-EINVAL;
if (map_fixed && map_randomized)
return (void*)-EINVAL;
if (!validate_mmap_prot(prot, map_stack))
return (void*)-EINVAL;