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| author | Alan Modra <amodra@gmail.com> | 2020-08-12 20:18:43 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-08-13 08:09:08 +0930 |
| commit | 75e100a30d5dfdd3ac2b0391c17173645fc77633 (patch) | |
| tree | a5543e1a6a43b603bc654afe5b81edcf8959b1a9 /bfd/bfd.c | |
| parent | 6d8a0a5e90936d4bea9bf1ce9b4e1c22d9aaccae (diff) | |
| download | gdb-75e100a30d5dfdd3ac2b0391c17173645fc77633.zip gdb-75e100a30d5dfdd3ac2b0391c17173645fc77633.tar.gz gdb-75e100a30d5dfdd3ac2b0391c17173645fc77633.tar.bz2 | |
PR26348, Malloc error in write_zeros
This adds a few more sanity checks on ELF objects, and a BFD flag to
disable objcopy and strip when fuzzed input files belong in the "too
hard" basket.
bfd/
PR 26348
* bfd.c (struct bfd): Add read_only.
* elfcode.h (elf_swap_shdr_in): Test both sh_offset and sh_size.
Set read_only on warning.
(elf_object_p): Sanity check program header alignment. Set
read_only on warning.
* bfd-in2.h: Regenerate.
binutils/
PR 26348
* objcopy.c (copy_object): Report file name with endian error.
Error and return on abfd->read_only.
Diffstat (limited to 'bfd/bfd.c')
| -rw-r--r-- | bfd/bfd.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -245,6 +245,10 @@ CODE_FRAGMENT . {* Set if this is a slim LTO object not loaded with a compiler plugin. *} . unsigned int lto_slim_object : 1; . +. {* Do not attempt to modify this file. Set when detecting errors +. that BFD is not prepared to handle for objcopy/strip. *} +. unsigned int read_only : 1; +. . {* Set to dummy BFD created when claimed by a compiler plug-in . library. *} . bfd *plugin_dummy_bfd; |