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authorSiddhesh Poyarekar <siddhesh@sourceware.org>2017-02-02 16:15:45 +0530
committerMike Frysinger <vapier@gentoo.org>2017-02-09 00:11:46 -0500
commita0c7c4ebeea470eb00dcd1c8200a902a00b5470b (patch)
tree544faf9c35c372fd1140a8a81ec2bd5c2c8b2266
parent4adce1bf311f30d584a97a25d34a2e77fa9a0bab (diff)
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Drop GLIBC_TUNABLES in setxid processes
Drop the GLIBC_TUNABLES environment variable from the environment of
setxid processes to avoid passing it on to non-setxid children.  This
prevents potentially insecure tunables in the GLIBC_TUNABLES envvar
from crossing over into a child that may use a libc that has tunables
support.

	* sysdeps/generic/unsecvars.h: Add GLIBC_TUNABLES.

(cherry picked from commit 537a06fbdeb9a6c2184c745c15ef3346681f5eeb)
-rw-r--r--sysdeps/generic/unsecvars.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/generic/unsecvars.h b/sysdeps/generic/unsecvars.h
index d5b8119c9c..3e56538b51 100644
--- a/sysdeps/generic/unsecvars.h
+++ b/sysdeps/generic/unsecvars.h
@@ -4,6 +4,7 @@
 #define UNSECURE_ENVVARS \
   "GCONV_PATH\0"							      \
   "GETCONF_DIR\0"							      \
+  "GLIBC_TUNABLES\0"							      \
   "HOSTALIASES\0"							      \
   "LD_AUDIT\0"								      \
   "LD_DEBUG\0"								      \