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LibELF: Ignore PT_GNU_STACK headers
We always map stacks R/W (never X), so we can just ignore this header as far as I understand.
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@ -197,6 +197,11 @@ bool validate_program_headers(const Elf32_Ehdr& elf_header, size_t file_size, u8
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return false;
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}
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break;
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case PT_GNU_STACK:
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if (program_header.p_flags & PF_X) {
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dbgprintf("Possible shenanigans! Validating an ELF with executable stack.\n");
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}
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break;
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default:
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// Not handling other program header types in other code so... let's not surprise them
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dbgprintf("Found program header (%zu) of unrecognized type %x!\n", header_index, program_header.p_type);
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@ -469,6 +469,7 @@ typedef struct {
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#define PT_GNU_EH_FRAME 0x6474e550 /* Exception handling info */
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#define PT_GNU_RELRO 0x6474e552 /* Read-only after relocation */
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#define PT_GNU_STACK 0x6474e551 /* Stack permissions info */
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#define PT_OPENBSD_RANDOMIZE 0x65a3dbe6 /* fill with random data */
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#define PT_OPENBSD_WXNEEDED 0x65a3dbe7 /* program performs W^X violations */
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