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authorPaul Pluzhnikov <ppluzhnikov@google.com>2018-05-05 18:08:27 -0700
committerPaul Pluzhnikov <ppluzhnikov@google.com>2018-05-05 18:08:27 -0700
commit0065aaaaae51cd60210ec3a7e13dddd8e01ffe2c (patch)
treefb1f587dbe38029797cdf5b3779b51b7cea3d680 /elf/Makefile
parentb289cd9db8286fa6c670104dd5dfcfc68d5d00d6 (diff)
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Fix BZ 20419. A PT_NOTE in a binary could be arbitratily large, so using
alloca for it may cause stack overflow. If the note is larger than __MAX_ALLOCA_CUTOFF, use dynamically allocated memory to read it in. 2018-05-05 Paul Pluzhnikov <ppluzhnikov@google.com> [BZ #20419] * elf/dl-load.c (open_verify): Fix stack overflow. * elf/Makefile (tst-big-note): New test. * elf/tst-big-note-lib.S: New. * elf/tst-big-note.c: New.
Diffstat (limited to 'elf/Makefile')
-rw-r--r--elf/Makefile8
1 files changed, 6 insertions, 2 deletions
diff --git a/elf/Makefile b/elf/Makefile
index e658928305..2dcd2b88e0 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -186,7 +186,7 @@ tests += restest1 preloadtest loadfail multiload origtest resolvfail \
tst-tlsalign tst-tlsalign-extern tst-nodelete-opened \
tst-nodelete2 tst-audit11 tst-audit12 tst-dlsym-error tst-noload \
tst-latepthread tst-tls-manydynamic tst-nodelete-dlclose \
- tst-debug1 tst-main1 tst-absolute-sym
+ tst-debug1 tst-main1 tst-absolute-sym tst-big-note
# reldep9
tests-internal += loadtest unload unload2 circleload1 \
neededtest neededtest2 neededtest3 neededtest4 \
@@ -272,7 +272,9 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
tst-audit12mod1 tst-audit12mod2 tst-audit12mod3 tst-auditmod12 \
tst-latepthreadmod $(tst-tls-many-dynamic-modules) \
tst-nodelete-dlclose-dso tst-nodelete-dlclose-plugin \
- tst-main1mod tst-libc_dlvsym-dso tst-absolute-sym-lib
+ tst-main1mod tst-libc_dlvsym-dso tst-absolute-sym-lib \
+ tst-big-note-lib
+
ifeq (yes,$(have-mtls-dialect-gnu2))
tests += tst-gnu2-tls1
modules-names += tst-gnu2-tls1mod
@@ -1450,3 +1452,5 @@ $(objpfx)tst-libc_dlvsym-static: $(common-objpfx)dlfcn/libdl.a
tst-libc_dlvsym-static-ENV = \
LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)dlfcn
$(objpfx)tst-libc_dlvsym-static.out: $(objpfx)tst-libc_dlvsym-dso.so
+
+$(objpfx)tst-big-note: $(objpfx)tst-big-note-lib.so