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bootboot: Check for the right architecture when bruteforcing kernel (see #124)

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This commit is contained in:
mintsuki 2021-11-10 12:29:58 +01:00
parent e0fefcf21c
commit 6aba8decc4
1 changed files with 2 additions and 1 deletions
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3
stage23/protos/bootboot/initrd.c
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@ -8,7 +8,8 @@
struct initrd_file bruteforce_kernel(struct initrd_file file) {
for (size_t i = 0; i < file.size; i++) {
if (memcmp(file.data + i, "\177ELF", 4) == 0) {
if (memcmp(file.data + i, "\177ELF", 4) == 0
&& file.data[i + 18] == 62 && file.data[i + 19] == 0 /* ehdr->e_machine == EM_X86_64 */) {
printv("bootboot: using bruteforced kernel at initrd offset %X\n", file.data + i);
return (struct initrd_file){
.size = file.size - i,