From: Raphael Moreira Zinsly Date: Mon, 14 Sep 2020 14:59:24 +0000 (-0300) Subject: powerpc: Protect dl_powerpc_cpu_features on INIT_ARCH() [BZ #26615] X-Git-Tag: glibc-2.33~472 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3322ecbfe29a16e74c4f584d661b0b8018bb4031;p=thirdparty%2Fglibc.git powerpc: Protect dl_powerpc_cpu_features on INIT_ARCH() [BZ #26615] dl_powerpc_cpu_features also needs to be protected by __GLRO to check for the _rtld_global_ro realocation before accessing it. Reviewed-by: Tulio Magno Quites Machado Filho --- diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h b/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h index 17ddfcf5284..c8fa07fadc5 100644 --- a/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h +++ b/sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h @@ -38,7 +38,7 @@ unsigned long int hwcap = __GLRO(dl_hwcap); \ unsigned long int __attribute__((unused)) hwcap2 = __GLRO(dl_hwcap2); \ bool __attribute__((unused)) use_cached_memopt = \ - GLRO(dl_powerpc_cpu_features).use_cached_memopt; \ + __GLRO(dl_powerpc_cpu_features.use_cached_memopt); \ if (hwcap & PPC_FEATURE_ARCH_2_06) \ hwcap |= PPC_FEATURE_ARCH_2_05 | \ PPC_FEATURE_POWER5_PLUS | \