diff options
| author | Marvin Borner | 2021-04-09 13:10:03 +0200 |
|---|---|---|
| committer | Marvin Borner | 2021-04-09 13:10:03 +0200 |
| commit | eeb88df1d501ccec4737c18dddb7ca0a1176304f (patch) | |
| tree | d36b563a27a4a7bdeae662eb5aa44ca082b57e0b /kernel/features/load.c | |
| parent | f8d841fe268ebba43686729af535e035702438f7 (diff) | |
Added readable/writable checks
Diffstat (limited to 'kernel/features/load.c')
| -rw-r--r-- | kernel/features/load.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/features/load.c b/kernel/features/load.c index 91954b1..df01e04 100644 --- a/kernel/features/load.c +++ b/kernel/features/load.c @@ -11,7 +11,7 @@ res elf_load(const char *name, struct proc *proc) { - if (!memory_valid(name)) + if (!memory_readable(name)) return -EFAULT; stac(); @@ -52,7 +52,7 @@ res elf_load(const char *name, struct proc *proc) header.version != 1 || header.machine != ELF_MACHINE_386) return -ENOEXEC; - if (!memory_valid((void *)header.entry)) + if (!memory_is_user((void *)header.entry)) return -ENOEXEC; // ASLR @@ -77,7 +77,7 @@ res elf_load(const char *name, struct proc *proc) if (program.vaddr == 0 || program.type != ELF_PROGRAM_TYPE_LOAD) continue; - if (!memory_is_user(program.vaddr)) + if (!memory_is_user((void *)program.vaddr)) return -ENOEXEC; struct page_dir *prev; |