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From be3004dc350a820a5b0320b34bd05673ba534058 Mon Sep 17 00:00:00 2001 |
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From: law <law@138bc75d-0d04-0410-961f-82ee72b054a4> |
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Date: Thu, 31 Mar 2016 17:20:53 +0000 |
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Subject: [PATCH] * cplus-dem.c (squangle_mop_up): Zero bsize/ksize |
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after freeing btypevec/ktypevec. * testsuite/demangle-expected: Add |
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coverage tests. |
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|
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234645 138bc75d-0d04-0410-961f-82ee72b054a4 |
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--- |
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libiberty/ChangeLog | 7 +++++++ |
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libiberty/cplus-dem.c | 2 ++ |
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libiberty/testsuite/demangle-expected | 10 ++++++++++ |
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3 files changed, 19 insertions(+) |
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|
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#diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog |
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#index d11f4ce..b4054bd 100644 |
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#--- a/libiberty/ChangeLog |
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#+++ b/libiberty/ChangeLog |
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#@@ -1,3 +1,10 @@ |
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#+2016-03-31 Mikhail Maltsev <maltsevm@gmail.com> |
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#+ Marcel Bohme boehme.marcel@gmail.com |
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#+ |
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#+ * cplus-dem.c (squangle_mop_up): Zero bsize/ksize after freeing |
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#+ btypevec/ktypevec. |
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#+ * testsuite/demangle-expected: Add coverage tests. |
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#+ |
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# 2016-01-27 Iain Buclaw <ibuclaw@gdcproject.org> |
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# |
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# * d-demangle.c (dlang_call_convention): Handle extern Objective-C |
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Index: gdb-7.11.1/libiberty/cplus-dem.c |
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=================================================================== |
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--- gdb-7.11.1.orig/libiberty/cplus-dem.c 2017-06-08 07:52:55.737197785 -0400 |
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+++ gdb-7.11.1/libiberty/cplus-dem.c 2017-06-08 07:52:55.721197580 -0400 |
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@@ -1244,11 +1244,13 @@ squangle_mop_up (struct work_stuff *work |
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{ |
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free ((char *) work -> btypevec); |
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work->btypevec = NULL; |
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+ work->bsize = 0; |
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} |
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if (work -> ktypevec != NULL) |
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{ |
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free ((char *) work -> ktypevec); |
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work->ktypevec = NULL; |
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+ work->ksize = 0; |
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} |
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} |
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|
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Index: gdb-7.11.1/libiberty/testsuite/demangle-expected |
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=================================================================== |
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--- gdb-7.11.1.orig/libiberty/testsuite/demangle-expected 2017-06-08 07:52:55.737197785 -0400 |
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+++ gdb-7.11.1/libiberty/testsuite/demangle-expected 2017-06-08 07:52:55.725197631 -0400 |
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@@ -4421,3 +4421,13 @@ void baz<int>(A<sizeof (foo((int)(), (fl |
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_QueueNotification_QueueController__$4PPPPPPPM_A_INotice___Z |
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_QueueNotification_QueueController__$4PPPPPPPM_A_INotice___Z |
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_QueueNotification_QueueController__$4PPPPPPPM_A_INotice___Z |
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+# |
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+# Tests a use-after-free problem |
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+ |
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+_Q.__0 |
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+::Q.(void) |
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+# |
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+# Tests a use-after-free problem |
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+ |
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+_Q10-__9cafebabe. |
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+cafebabe.::-(void) |
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