diff options
Diffstat (limited to 'import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-6969_2.patch')
-rw-r--r-- | import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-6969_2.patch | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-6969_2.patch b/import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-6969_2.patch new file mode 100644 index 000000000..491c7086e --- /dev/null +++ b/import-layers/yocto-poky/meta/recipes-devtools/binutils/binutils/CVE-2017-6969_2.patch @@ -0,0 +1,122 @@ +From 59fcd64fe65a89fb0acaf5463840310701189375 Mon Sep 17 00:00:00 2001 +From: Nick Clifton <nickc@redhat.com> +Date: Mon, 20 Feb 2017 14:40:39 +0000 +Subject: Fix another memory access error in readelf when parsing a corrupt + binary. + + PR binutils/21156 + * dwarf.c (cu_tu_indexes_read): Move into... + (load_cu_tu_indexes): ... here. Change the variable into + tri-state. Change the function into boolean, returning + false if the indicies could not be loaded. + (find_cu_tu_set): Return NULL if the indicies could not be + loaded. + +CVE: CVE-2017-6969 +Upstream-Status: Backport [master] + +Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com> +--- + binutils/ChangeLog | 10 ++++++++++ + binutils/dwarf.c | 34 ++++++++++++++++++++-------------- + 2 files changed, 30 insertions(+), 14 deletions(-) + +diff --git a/binutils/ChangeLog b/binutils/ChangeLog +index dbf8eb079e..55d2f8ba40 100644 +--- a/binutils/ChangeLog ++++ b/binutils/ChangeLog +@@ -1,3 +1,13 @@ ++2017-02-20 Nick Clifton <nickc@redhat.com> ++ ++ PR binutils/21156 ++ * dwarf.c (cu_tu_indexes_read): Move into... ++ (load_cu_tu_indexes): ... here. Change the variable into ++ tri-state. Change the function into boolean, returning ++ false if the indicies could not be loaded. ++ (find_cu_tu_set): Return NULL if the indicies could not be ++ loaded. ++ + 2017-02-17 Nick Clifton <nickc@redhat.com> + + PR binutils/21156 +diff --git a/binutils/dwarf.c b/binutils/dwarf.c +index 282e069958..a23267feb6 100644 +--- a/binutils/dwarf.c ++++ b/binutils/dwarf.c +@@ -76,7 +76,6 @@ int dwarf_check = 0; + as a zero-terminated list of section indexes comprising one set of debug + sections from a .dwo file. */ + +-static int cu_tu_indexes_read = 0; + static unsigned int *shndx_pool = NULL; + static unsigned int shndx_pool_size = 0; + static unsigned int shndx_pool_used = 0; +@@ -99,7 +98,7 @@ static int tu_count = 0; + static struct cu_tu_set *cu_sets = NULL; + static struct cu_tu_set *tu_sets = NULL; + +-static void load_cu_tu_indexes (void *file); ++static bfd_boolean load_cu_tu_indexes (void *); + + /* Values for do_debug_lines. */ + #define FLAG_DEBUG_LINES_RAW 1 +@@ -2713,7 +2712,7 @@ load_debug_info (void * file) + return num_debug_info_entries; + + /* If this is a DWARF package file, load the CU and TU indexes. */ +- load_cu_tu_indexes (file); ++ (void) load_cu_tu_indexes (file); + + if (load_debug_section (info, file) + && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0)) +@@ -7302,21 +7301,27 @@ process_cu_tu_index (struct dwarf_section *section, int do_display) + section sets that we can use to associate a .debug_info.dwo section + with its associated .debug_abbrev.dwo section in a .dwp file. */ + +-static void ++static bfd_boolean + load_cu_tu_indexes (void *file) + { ++ static int cu_tu_indexes_read = -1; /* Tri-state variable. */ ++ + /* If we have already loaded (or tried to load) the CU and TU indexes + then do not bother to repeat the task. */ +- if (cu_tu_indexes_read) +- return; +- +- if (load_debug_section (dwp_cu_index, file)) +- process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0); +- +- if (load_debug_section (dwp_tu_index, file)) +- process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0); ++ if (cu_tu_indexes_read == -1) ++ { ++ cu_tu_indexes_read = TRUE; ++ ++ if (load_debug_section (dwp_cu_index, file)) ++ if (! process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0)) ++ cu_tu_indexes_read = FALSE; ++ ++ if (load_debug_section (dwp_tu_index, file)) ++ if (! process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0)) ++ cu_tu_indexes_read = FALSE; ++ } + +- cu_tu_indexes_read = 1; ++ return (bfd_boolean) cu_tu_indexes_read; + } + + /* Find the set of sections that includes section SHNDX. */ +@@ -7326,7 +7331,8 @@ find_cu_tu_set (void *file, unsigned int shndx) + { + unsigned int i; + +- load_cu_tu_indexes (file); ++ if (! load_cu_tu_indexes (file)) ++ return NULL; + + /* Find SHNDX in the shndx pool. */ + for (i = 0; i < shndx_pool_used; i++) +-- +2.11.0 + |