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[kirkstone,V2,2/2] binutils: Fix CVE-2022-48064

Message ID 20231121114255.43746-2-Deepthi.Hemraj@windriver.com
State New, archived
Headers show
Series [kirkstone,V2,1/2] binutils: Fix CVE-2022-47007 | expand

Commit Message

Deepthi H Nov. 21, 2023, 11:42 a.m. UTC 
From: Deepthi Hemraj <Deepthi.Hemraj@windriver.com>

Signed-off-by: Deepthi Hemraj <Deepthi.Hemraj@windriver.com>
---
 .../binutils/binutils-2.38.inc                |  1 +
 .../binutils/0034-CVE-2022-48064.patch        | 57 +++++++++++++++++++
 2 files changed, 58 insertions(+)
 create mode 100644 meta/recipes-devtools/binutils/binutils/0034-CVE-2022-48064.patch
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Patch

diff --git a/meta/recipes-devtools/binutils/binutils-2.38.inc b/meta/recipes-devtools/binutils/binutils-2.38.inc
index dc29141812..3787063cba 100644
--- a/meta/recipes-devtools/binutils/binutils-2.38.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.38.inc
@@ -68,5 +68,6 @@  SRC_URI = "\
      file://CVE-2022-48063.patch \
      file://0032-CVE-2022-47010.patch \
      file://0033-CVE-2022-47007.patch \
+     file://0034-CVE-2022-48064.patch \
 "
 S  = "${WORKDIR}/git"
diff --git a/meta/recipes-devtools/binutils/binutils/0034-CVE-2022-48064.patch b/meta/recipes-devtools/binutils/binutils/0034-CVE-2022-48064.patch
new file mode 100644
index 0000000000..b0840366c7
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/0034-CVE-2022-48064.patch
@@ -0,0 +1,57 @@ 
+From: Alan Modra <amodra@gmail.com>
+Date: Tue, 20 Dec 2022 13:17:03 +0000 (+1030)
+Subject: PR29922, SHT_NOBITS section avoids section size sanity check
+X-Git-Tag: binutils-2_40~202
+X-Git-Url: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff_plain;h=8f2c64de86bc3d7556121fe296dd679000283931
+
+PR29922, SHT_NOBITS section avoids section size sanity check
+
+	PR 29922
+	* dwarf2.c (find_debug_info): Ignore sections without
+	SEC_HAS_CONTENTS.
+
+Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff_plain;h=8f2c64de86bc3d7556121fe296dd679000283931]
+
+CVE: CVE-2022-48064
+
+Signed-off-by: Deepthi Hemraj <Deepthi.Hemraj@windriver.com>
+
+---
+
+diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c
+index 95f45708e9d..0cd8152ee6e 100644
+--- a/bfd/dwarf2.c
++++ b/bfd/dwarf2.c
+@@ -4831,16 +4831,19 @@ find_debug_info (bfd *abfd, const struct dwarf_debug_section *debug_sections,
+     {
+       look = debug_sections[debug_info].uncompressed_name;
+       msec = bfd_get_section_by_name (abfd, look);
+-      if (msec != NULL)
++      /* Testing SEC_HAS_CONTENTS is an anti-fuzzer measure.  Of
++	 course debug sections always have contents.  */
++      if (msec != NULL && (msec->flags & SEC_HAS_CONTENTS) != 0)
+ 	return msec;
+ 
+       look = debug_sections[debug_info].compressed_name;
+       msec = bfd_get_section_by_name (abfd, look);
+-      if (msec != NULL)
++      if (msec != NULL && (msec->flags & SEC_HAS_CONTENTS) != 0)
+         return msec;
+ 
+       for (msec = abfd->sections; msec != NULL; msec = msec->next)
+-	if (startswith (msec->name, GNU_LINKONCE_INFO))
++	if ((msec->flags & SEC_HAS_CONTENTS) != 0
++	    && startswith (msec->name, GNU_LINKONCE_INFO))
+ 	  return msec;
+ 
+       return NULL;
+@@ -4848,6 +4851,9 @@ find_debug_info (bfd *abfd, const struct dwarf_debug_section *debug_sections,
+ 
+   for (msec = after_sec->next; msec != NULL; msec = msec->next)
+     {
++      if ((msec->flags & SEC_HAS_CONTENTS) == 0)
++	continue;
++
+       look = debug_sections[debug_info].uncompressed_name;
+       if (strcmp (msec->name, look) == 0)
+ 	return msec;