diff options
Diffstat (limited to 'meta/recipes-devtools/binutils/binutils/CVE-2019-17450.patch')
| -rw-r--r-- | meta/recipes-devtools/binutils/binutils/CVE-2019-17450.patch | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2019-17450.patch b/meta/recipes-devtools/binutils/binutils/CVE-2019-17450.patch deleted file mode 100644 index ce5b9f392d..0000000000 --- a/meta/recipes-devtools/binutils/binutils/CVE-2019-17450.patch +++ /dev/null @@ -1,94 +0,0 @@ -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(-) - ---- a/bfd/dwarf2.c -+++ b/bfd/dwarf2.c -@@ -2812,13 +2812,13 @@ static bfd_boolean comp_unit_maybe_decod - struct dwarf2_debug *); - - 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; -@@ -2829,6 +2829,14 @@ find_abstract_instance (struct comp_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) -@@ -2962,15 +2970,6 @@ find_abstract_instance (struct comp_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: -@@ -2984,7 +2983,7 @@ find_abstract_instance (struct comp_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; -@@ -3200,7 +3199,7 @@ scan_unit_for_symbols (struct comp_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, |