diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | NEWS | 1 | ||||
| -rw-r--r-- | elf/rtld.c | 3 | ||||
| -rw-r--r-- | sysdeps/generic/unsecvars.h | 1 |
4 files changed, 11 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index ce6fa9a83e..c23d1ecdc9 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2017-03-07 Siddhesh Poyarekar <siddhesh@sourceware.org> + + [BZ #21209] + * elf/rtld.c (process_envvars): Ignore LD_HWCAP_MASK for + AT_SECURE processes. + * sysdeps/generic/unsecvars.h: Add LD_HWCAP_MASK. + 2017-06-19 Florian Weimer <fweimer@redhat.com> * elf/rtld.c (audit_list_string): New variable. diff --git a/NEWS b/NEWS index 76a7f6a193..017d3c14f6 100644 --- a/NEWS +++ b/NEWS @@ -42,6 +42,7 @@ The following bugs are resolved with this release: (CVE-2016-3075) [20177] $dp is not initialized correctly in sysdeps/hppa/start.S [20357] Incorrect cos result for 1.5174239687223976 + [21209] Ignore and remove LD_HWCAP_MASK for AT_SECURE programs [21289] Fix symbol redirect for fts_set [21624] Unsafe alloca allows local attackers to alias stack and heap (CVE-2017-1000366) diff --git a/elf/rtld.c b/elf/rtld.c index 302bb63620..8f56d6edd3 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -2553,7 +2553,8 @@ process_envvars (enum mode *modep) case 10: /* Mask for the important hardware capabilities. */ - if (memcmp (envline, "HWCAP_MASK", 10) == 0) + if (!__libc_enable_secure + && memcmp (envline, "HWCAP_MASK", 10) == 0) GLRO(dl_hwcap_mask) = __strtoul_internal (&envline[11], NULL, 0, 0); break; diff --git a/sysdeps/generic/unsecvars.h b/sysdeps/generic/unsecvars.h index 3e56538b51..ac57bd5db0 100644 --- a/sysdeps/generic/unsecvars.h +++ b/sysdeps/generic/unsecvars.h @@ -10,6 +10,7 @@ "LD_DEBUG\0" \ "LD_DEBUG_OUTPUT\0" \ "LD_DYNAMIC_WEAK\0" \ + "LD_HWCAP_MASK\0" \ "LD_LIBRARY_PATH\0" \ "LD_ORIGIN_PATH\0" \ "LD_PRELOAD\0" \ |