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| author | Alan Modra <amodra@gmail.com> | 2020-08-26 14:18:53 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-08-26 23:23:44 +0930 |
| commit | 9863cbb7bd3495107a5b1b4d887c95d859c9a35e (patch) | |
| tree | f4e17967965210e6898d5a43bf05568281e984f8 /bfd/ecofflink.c | |
| parent | c01de193638c9022411ae0542a457b9d68723013 (diff) | |
| download | gdb-9863cbb7bd3495107a5b1b4d887c95d859c9a35e.zip gdb-9863cbb7bd3495107a5b1b4d887c95d859c9a35e.tar.gz gdb-9863cbb7bd3495107a5b1b4d887c95d859c9a35e.tar.bz2 | |
PR26418 UBSAN: cache.c:386 null pointer fwrite
PR 26418
* ecofflink.c (WRITE): Don't write size 0 chunks.
Diffstat (limited to 'bfd/ecofflink.c')
| -rw-r--r-- | bfd/ecofflink.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/bfd/ecofflink.c b/bfd/ecofflink.c index e7b35f6..7c9a7ae 100644 --- a/bfd/ecofflink.c +++ b/bfd/ecofflink.c @@ -1489,10 +1489,12 @@ bfd_ecoff_write_debug (bfd *abfd, return FALSE; #define WRITE(ptr, count, size, offset) \ - BFD_ASSERT (symhdr->offset == 0 \ - || (bfd_vma) bfd_tell (abfd) == symhdr->offset); \ - if (bfd_bwrite (debug->ptr, (bfd_size_type) size * symhdr->count, abfd)\ - != size * symhdr->count) \ + BFD_ASSERT (symhdr->offset == 0 \ + || (bfd_vma) bfd_tell (abfd) == symhdr->offset); \ + if (size != 0 \ + && bfd_bwrite (debug->ptr, \ + (bfd_size_type) size * symhdr->count, \ + abfd) != size * symhdr->count) \ return FALSE; WRITE (line, cbLine, sizeof (unsigned char), cbLineOffset); |