[committed 2.38 1/2] Propagate GLIBC_TUNABLES in setxid binaries

Siddhesh Poyarekar siddhesh@sourceware.org
Tue Oct 3 17:08:32 GMT 2023


GLIBC_TUNABLES scrubbing happens earlier than envvar scrubbing and some
tunables are required to propagate past setxid boundary, like their
env_alias.  Rely on tunable scrubbing to clean out GLIBC_TUNABLES like
before, restoring behaviour in glibc 2.37 and earlier.

Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit 0d5f9ea97f1b39f2a855756078771673a68497e1)
---
 sysdeps/generic/unsecvars.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sysdeps/generic/unsecvars.h b/sysdeps/generic/unsecvars.h
index 81397fb90b..8278c50a84 100644
--- a/sysdeps/generic/unsecvars.h
+++ b/sysdeps/generic/unsecvars.h
@@ -4,7 +4,6 @@
 #define UNSECURE_ENVVARS \
   "GCONV_PATH\0"							      \
   "GETCONF_DIR\0"							      \
-  "GLIBC_TUNABLES\0"							      \
   "HOSTALIASES\0"							      \
   "LD_AUDIT\0"								      \
   "LD_DEBUG\0"								      \
-- 
2.41.0



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