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author | Alan Modra <amodra@gmail.com> | 2022-10-05 10:27:46 +1030 |
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committer | Alan Modra <amodra@gmail.com> | 2022-10-05 14:53:41 +1030 |
commit | 011a13613403c42717c623b0c5fc1e69de9f65b5 (patch) | |
tree | 99d04c683d74038b26d46c7a322cb5a2a22d4fa1 | |
parent | 9c48ba47b36c3b243727af49bfebb867d7930de3 (diff) | |
download | gdb-011a13613403c42717c623b0c5fc1e69de9f65b5.zip gdb-011a13613403c42717c623b0c5fc1e69de9f65b5.tar.gz gdb-011a13613403c42717c623b0c5fc1e69de9f65b5.tar.bz2 |
Re: stab nearest_line bfd_malloc_and_get_section
It didn't take long for the fuzzers to avoid size checks in
bfd_malloc_and_get_section. Plug this hole.
* syms.c (_bfd_stab_section_find_nearest_line): Ignore fuzzed
sections with no contents.
-rw-r--r-- | bfd/syms.c | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -1019,6 +1019,10 @@ _bfd_stab_section_find_nearest_line (bfd *abfd, return true; } + if ((info->stabsec->flags & SEC_HAS_CONTENTS) == 0 + || (info->strsec->flags & SEC_HAS_CONTENTS) == 0) + goto out; + stabsize = (info->stabsec->rawsize ? info->stabsec->rawsize : info->stabsec->size); |