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Allow longer Mach-O headers.

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modified:   src/amd64-darwin.macho-upxmain.c
This commit is contained in:
John Reiser
2016-09-24 17:21:07 -07:00
parent df19f0d5ec
commit 9109254488
1 changed files with 3 additions and 2 deletions
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src/stub/src/amd64-darwin.macho-upxmain.c
+3 -2
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@@ -659,7 +659,8 @@ upx_main(
err_exit(18); err_exit(18);
} }
for (;;) { // possibly 2 times for 'fat' binary for (;;) { // possibly 2 times for 'fat' binary
if ((ssize_t)sz_mhdr!=pread(fdi, (void *)mhdr, sz_mhdr, fat_offset)) { unsigned const fatmax = sizeof(Fat_header) + 10 * sizeof(Fat_arch);
if (fatmax!=pread(fdi, (void *)mhdr, fatmax, fat_offset)) {
ERR_LAB ERR_LAB
err_exit(19); err_exit(19);
} }
@@ -738,7 +739,7 @@ main(int argc, char *argv[])
break; break;
} }
} }
char mhdr[2048]; char mhdr[16384];
uint64_t entry = upx_main((struct l_info const *)payload, paysize, uint64_t entry = upx_main((struct l_info const *)payload, paysize,
(Mach_header64 *)mhdr, sizeof(mhdr), (Mach_header64 *)mhdr, sizeof(mhdr),
f_exp, f_unf, (Mach_header64 **)&argv[-2]); f_exp, f_unf, (Mach_header64 **)&argv[-2]);