diff options
Diffstat (limited to 'meta/recipes-devtools/binutils')
5 files changed, 237 insertions, 0 deletions
diff --git a/meta/recipes-devtools/binutils/binutils-2.32.inc b/meta/recipes-devtools/binutils/binutils-2.32.inc index d3c52936d1..739ba70cf2 100644 --- a/meta/recipes-devtools/binutils/binutils-2.32.inc +++ b/meta/recipes-devtools/binutils/binutils-2.32.inc @@ -52,6 +52,8 @@ SRC_URI = "\ file://CVE-2019-12972.patch \ file://CVE-2019-14250.patch \ file://CVE-2019-14444.patch \ + file://CVE-2019-17450.patch \ + file://CVE-2019-17451.patch \ " S = "${WORKDIR}/git" diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2019-17450.patch b/meta/recipes-devtools/binutils/binutils/CVE-2019-17450.patch new file mode 100644 index 0000000000..a6ce0b9a8a --- /dev/null +++ b/meta/recipes-devtools/binutils/binutils/CVE-2019-17450.patch @@ -0,0 +1,99 @@ +From 09dd135df9ebc7a4b640537e23e26a03a288a789 Mon Sep 17 00:00:00 2001 +From: Alan Modra <amodra@gmail.com> +Date: Wed, 9 Oct 2019 00:07:29 +1030 +Subject: [PATCH] PR25078, stack overflow in function find_abstract_instance + +Selectively backporting fix for bfd/dwarf2.c, but not the ChangeLog +file. There are newer versions of binutils, but none of them contain the +commit fixing CVE-2019-17450, so backport it to master and zeus. + +Upstream-Status: Backport [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=063c511bd79] +CVE: CVE-2019-17450 +Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com> + + PR 25078 + * dwarf2.c (find_abstract_instance): Delete orig_info_ptr, add + recur_count. Error on recur_count reaching 100 rather than + info_ptr matching orig_info_ptr. Adjust calls. + +--- + bfd/dwarf2.c | 35 +++++++++++++++++------------------ + 1 file changed, 17 insertions(+), 18 deletions(-) + +diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c +index 0b4e485582..20ec9e2e56 100644 +--- a/bfd/dwarf2.c ++++ b/bfd/dwarf2.c +@@ -2803,13 +2803,13 @@ lookup_symbol_in_variable_table (struct comp_unit *unit, + } + + static bfd_boolean +-find_abstract_instance (struct comp_unit * unit, +- bfd_byte * orig_info_ptr, +- struct attribute * attr_ptr, +- const char ** pname, +- bfd_boolean * is_linkage, +- char ** filename_ptr, +- int * linenumber_ptr) ++find_abstract_instance (struct comp_unit *unit, ++ struct attribute *attr_ptr, ++ unsigned int recur_count, ++ const char **pname, ++ bfd_boolean *is_linkage, ++ char **filename_ptr, ++ int *linenumber_ptr) + { + bfd *abfd = unit->abfd; + bfd_byte *info_ptr; +@@ -2820,6 +2820,14 @@ find_abstract_instance (struct comp_unit * unit, + struct attribute attr; + const char *name = NULL; + ++ if (recur_count == 100) ++ { ++ _bfd_error_handler ++ (_("DWARF error: abstract instance recursion detected")); ++ bfd_set_error (bfd_error_bad_value); ++ return FALSE; ++ } ++ + /* DW_FORM_ref_addr can reference an entry in a different CU. It + is an offset from the .debug_info section, not the current CU. */ + if (attr_ptr->form == DW_FORM_ref_addr) +@@ -2939,15 +2947,6 @@ find_abstract_instance (struct comp_unit * unit, + info_ptr, info_ptr_end); + if (info_ptr == NULL) + break; +- /* It doesn't ever make sense for DW_AT_specification to +- refer to the same DIE. Stop simple recursion. */ +- if (info_ptr == orig_info_ptr) +- { +- _bfd_error_handler +- (_("DWARF error: abstract instance recursion detected")); +- bfd_set_error (bfd_error_bad_value); +- return FALSE; +- } + switch (attr.name) + { + case DW_AT_name: +@@ -2961,7 +2960,7 @@ find_abstract_instance (struct comp_unit * unit, + } + break; + case DW_AT_specification: +- if (!find_abstract_instance (unit, info_ptr, &attr, ++ if (!find_abstract_instance (unit, &attr, recur_count + 1, + &name, is_linkage, + filename_ptr, linenumber_ptr)) + return FALSE; +@@ -3175,7 +3174,7 @@ scan_unit_for_symbols (struct comp_unit *unit) + + case DW_AT_abstract_origin: + case DW_AT_specification: +- if (!find_abstract_instance (unit, info_ptr, &attr, ++ if (!find_abstract_instance (unit, &attr, 0, + &func->name, + &func->is_linkage, + &func->file, +-- +2.23.0 + diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2019-17451.patch b/meta/recipes-devtools/binutils/binutils/CVE-2019-17451.patch new file mode 100644 index 0000000000..b36a532668 --- /dev/null +++ b/meta/recipes-devtools/binutils/binutils/CVE-2019-17451.patch @@ -0,0 +1,51 @@ +From 0192438051a7e781585647d5581a2a6f62fda362 Mon Sep 17 00:00:00 2001 +From: Alan Modra <amodra@gmail.com> +Date: Wed, 9 Oct 2019 10:47:13 +1030 +Subject: [PATCH] PR25070, SEGV in function _bfd_dwarf2_find_nearest_line + +Selectively backporting fix for bfd/dwarf2.c, but not the ChangeLog +file. There are newer versions of binutils, but none of them contain the +commit fixing CVE-2019-17451, so backport it to master and zeus. + +Upstream-Status: Backport +[https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=336bfbeb1848] +CVE: CVE-2019-17451 +Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com> + + +Evil testcase with two debug info sections, with sizes of 2aaaabac4ec1 +and ffffd5555453b140 result in a total size of 1. Reading the first +section of course overflows the buffer and tramples on other memory. + + PR 25070 + * dwarf2.c (_bfd_dwarf2_slurp_debug_info): Catch overflow of + total_size calculation. +--- + bfd/dwarf2.c | 11 ++++++++++- + 1 file changed, 10 insertions(+), 1 deletion(-) + +diff --git a/bfd/dwarf2.c b/bfd/dwarf2.c +index 0b4e485582..a91597b1d0 100644 +--- a/bfd/dwarf2.c ++++ b/bfd/dwarf2.c +@@ -4426,7 +4426,16 @@ _bfd_dwarf2_slurp_debug_info (bfd *abfd, bfd *debug_bfd, + for (total_size = 0; + msec; + msec = find_debug_info (debug_bfd, debug_sections, msec)) +- total_size += msec->size; ++ { ++ /* Catch PR25070 testcase overflowing size calculation here. */ ++ if (total_size + msec->size < total_size ++ || total_size + msec->size < msec->size) ++ { ++ bfd_set_error (bfd_error_no_memory); ++ return FALSE; ++ } ++ total_size += msec->size; ++ } + + stash->info_ptr_memory = (bfd_byte *) bfd_malloc (total_size); + if (stash->info_ptr_memory == NULL) +-- +2.23.0 + diff --git a/meta/recipes-devtools/binutils/binutils/nativesdk-relocation.patch b/meta/recipes-devtools/binutils/binutils/nativesdk-relocation.patch new file mode 100644 index 0000000000..408f7d18b7 --- /dev/null +++ b/meta/recipes-devtools/binutils/binutils/nativesdk-relocation.patch @@ -0,0 +1,80 @@ +We need binutils to look at our ld.so.conf file within the SDK to ensure +we search the SDK's libdirs as well as those from the host system. + +We therefore pass in the directory to the code using a define, then add +it to a section we relocate in a similar way to the way we relocate the +gcc internal paths. This ensures that ld works correctly in our buildtools +tarball. + +Standard sysroot relocation doesn't work since we're not in a sysroot, +we want to use both the host system and SDK libs. + +Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> +2020/1/17 +Upstream-Status: Inappropriate [OE specific tweak] + +Index: git/ld/Makefile.am +=================================================================== +--- git.orig/ld/Makefile.am ++++ git/ld/Makefile.am +@@ -36,7 +36,8 @@ am__skipyacc = + + ELF_CLFAGS=-DELF_LIST_OPTIONS=@elf_list_options@ \ + -DELF_SHLIB_LIST_OPTIONS=@elf_shlib_list_options@ \ +- -DELF_PLT_UNWIND_LIST_OPTIONS=@elf_plt_unwind_list_options@ ++ -DELF_PLT_UNWIND_LIST_OPTIONS=@elf_plt_unwind_list_options@ \ ++ -DSYSCONFDIR="\"$(sysconfdir)\"" + WARN_CFLAGS = @WARN_CFLAGS@ + NO_WERROR = @NO_WERROR@ + AM_CFLAGS = $(WARN_CFLAGS) $(ELF_CLFAGS) +Index: git/ld/Makefile.in +=================================================================== +--- git.orig/ld/Makefile.in ++++ git/ld/Makefile.in +@@ -546,7 +546,8 @@ am__skiplex = + am__skipyacc = + ELF_CLFAGS = -DELF_LIST_OPTIONS=@elf_list_options@ \ + -DELF_SHLIB_LIST_OPTIONS=@elf_shlib_list_options@ \ +- -DELF_PLT_UNWIND_LIST_OPTIONS=@elf_plt_unwind_list_options@ ++ -DELF_PLT_UNWIND_LIST_OPTIONS=@elf_plt_unwind_list_options@ \ ++ -DSYSCONFDIR="\"$(sysconfdir)\"" + + AM_CFLAGS = $(WARN_CFLAGS) $(ELF_CLFAGS) + @ENABLE_PLUGINS_FALSE@PLUGIN_C = +Index: git/ld/emultempl/elf32.em +=================================================================== +--- git.orig/ld/emultempl/elf32.em ++++ git/ld/emultempl/elf32.em +@@ -1024,7 +1024,7 @@ gld${EMULATION_NAME}_check_ld_so_conf (c + + info.path = NULL; + info.len = info.alloc = 0; +- tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf", ++ tmppath = concat (ld_sysconfdir, "/ld.so.conf", + (const char *) NULL); + if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath)) + { +Index: git/ld/ldmain.c +=================================================================== +--- git.orig/ld/ldmain.c ++++ git/ld/ldmain.c +@@ -68,6 +68,7 @@ char *program_name; + + /* The prefix for system library directories. */ + const char *ld_sysroot; ++char ld_sysconfdir[4096] __attribute__ ((section (".gccrelocprefix"))) = SYSCONFDIR; + + /* The canonical representation of ld_sysroot. */ + char *ld_canon_sysroot; +Index: git/ld/ldmain.h +=================================================================== +--- git.orig/ld/ldmain.h ++++ git/ld/ldmain.h +@@ -23,6 +23,7 @@ + + extern char *program_name; + extern const char *ld_sysroot; ++extern char ld_sysconfdir[4096]; + extern char *ld_canon_sysroot; + extern int ld_canon_sysroot_len; + extern FILE *saved_script_handle; diff --git a/meta/recipes-devtools/binutils/binutils_2.32.bb b/meta/recipes-devtools/binutils/binutils_2.32.bb index 51a9748906..625e18c787 100644 --- a/meta/recipes-devtools/binutils/binutils_2.32.bb +++ b/meta/recipes-devtools/binutils/binutils_2.32.bb @@ -46,4 +46,9 @@ do_install_class-native () { PACKAGE_BEFORE_PN += "libbfd" FILES_libbfd = "${libdir}/libbfd-*.so" +SRC_URI_append_class-nativesdk = "file://nativesdk-relocation.patch" + +USE_ALTERNATIVES_FOR_class-nativesdk = "" +FILES_${PN}_append_class-nativesdk = " ${bindir}" + BBCLASSEXTEND = "native nativesdk" |