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| author | Nick Clifton <nickc@redhat.com> | 2018-04-16 16:39:15 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2018-04-16 16:39:15 +0100 |
| commit | c77852c8916415b089e56271b6ab9f793fdb413c (patch) | |
| tree | 7a18a1c89e154da7ec5282448c5c63bcf49f9047 /gas/config/obj-elf.c | |
| parent | fc7aa874aad7eea29014c5591174d57f81500d69 (diff) | |
| download | binutils-c77852c8916415b089e56271b6ab9f793fdb413c.zip binutils-c77852c8916415b089e56271b6ab9f793fdb413c.tar.gz binutils-c77852c8916415b089e56271b6ab9f793fdb413c.tar.bz2 | |
Fix illegal memory accesses in the assembler when attempting to parse corrup tinput files.
PR 23054
* cond.c (s_ifsef): Replace use of obstack_copy with obstack_alloc
followed by memcpy.
(s_if, s_ifb, s_ifc, s_ifeqs): Likewise.
* obj-elf.c (elf_adjust_symtab): Check for local symbols before
attempting to dereference the sy_next field of a symbol.
* stabs.c (get_stab_string_offset): Fail if there is no string
following the stab directive.
Diffstat (limited to 'gas/config/obj-elf.c')
| -rw-r--r-- | gas/config/obj-elf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gas/config/obj-elf.c b/gas/config/obj-elf.c index 38b79f8..5870447 100644 --- a/gas/config/obj-elf.c +++ b/gas/config/obj-elf.c @@ -2471,7 +2471,8 @@ elf_adjust_symtab (void) sy = symbol_find_exact (group_name); if (!sy || (sy != symbol_lastP - && (sy->sy_next == NULL + && (sy->sy_flags.sy_local_symbol + || sy->sy_next == NULL || sy->sy_next->sy_previous != sy))) { /* Create the symbol now. */ |