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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2023-11-22 17:43:23 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2023-12-05 13:21:36 -0300
commit876a12e51323b4c0f7b6f32ec76f4a5280b7f0b9 (patch)
tree27efea2aca442b69ada4a737d707999036e40514 /sysdeps
parentf85722f9cdedde15c263753cbee0a705d2be67af (diff)
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elf: Ignore loader debug env vars for setuid
Loader already ignores LD_DEBUG, LD_DEBUG_OUTPUT, and
LD_TRACE_LOADED_OBJECTS. Both LD_WARN and LD_VERBOSE are similar to
LD_DEBUG, in the sense they enable additional checks and debug
information, so it makes sense to disable them.

Also add both LD_VERBOSE and LD_WARN on filtered environment variables
for setuid binaries.

Checked on x86_64-linux-gnu.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/generic/unsecvars.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/generic/unsecvars.h b/sysdeps/generic/unsecvars.h
index f7ebed60e5..8975df4a14 100644
--- a/sysdeps/generic/unsecvars.h
+++ b/sysdeps/generic/unsecvars.h
@@ -16,6 +16,8 @@
   "LD_PRELOAD\0"							      \
   "LD_PROFILE\0"							      \
   "LD_SHOW_AUXV\0"							      \
+  "LD_VERBOSE\0"							      \
+  "LD_WARN\0"								      \
   "LOCALDOMAIN\0"							      \
   "LOCPATH\0"								      \
   "MALLOC_ARENA_MAX\0"							      \