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701eecc7d3
affects <= 2.29.1 (From OE-Core rev: 47c3add5dcc7a29d4647da2c0ad86d756323aa8f) Signed-off-by: Armin Kuster <akuster@mvista.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
54 lines
1.5 KiB
Diff
54 lines
1.5 KiB
Diff
From a26a013f22a19e2c16729e64f40ef8a7dfcc086e Mon Sep 17 00:00:00 2001
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From: Alan Modra <amodra@gmail.com>
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Date: Sun, 24 Sep 2017 17:10:14 +0930
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Subject: [PATCH] PR22191, memory leak in dwarf2.c
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table->sequences is a linked list before it is replaced by a bfd_alloc
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array in sort_line_sequences.
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PR 22191
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* dwarf2.c (decode_line_info): Properly free line sequences on error.
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Upstream-Status: Backport
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Affects: <= 2.29.1
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CVE: CVE-2017-14930
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Signed-off-by: Armin Kuster <akuster@mvista.com>
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---
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bfd/ChangeLog | 5 +++++
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bfd/dwarf2.c | 8 ++++++--
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2 files changed, 11 insertions(+), 2 deletions(-)
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Index: git/bfd/dwarf2.c
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===================================================================
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--- git.orig/bfd/dwarf2.c
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+++ git/bfd/dwarf2.c
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@@ -2473,8 +2473,12 @@ decode_line_info (struct comp_unit *unit
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return table;
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fail:
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- if (table->sequences != NULL)
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- free (table->sequences);
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+ while (table->sequences != NULL)
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+ {
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+ struct line_sequence* seq = table->sequences;
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+ table->sequences = table->sequences->prev_sequence;
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+ free (seq);
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+ }
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if (table->files != NULL)
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free (table->files);
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if (table->dirs != NULL)
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Index: git/bfd/ChangeLog
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===================================================================
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--- git.orig/bfd/ChangeLog
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+++ git/bfd/ChangeLog
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@@ -1,3 +1,8 @@
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+2017-09-24 Alan Modra <amodra@gmail.com>
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+
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+ PR 22191
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+ * dwarf2.c (decode_line_info): Properly free line sequences on error.
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+
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2017-11-28 Nick Clifton <nickc@redhat.com>
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PR 22507
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