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| author | Alan Modra <amodra@gmail.com> | 2023-06-03 12:39:06 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2023-06-03 17:17:37 +0930 |
| commit | c6e6e3ab2b70458d34c4a7a2e7e1637d38d49e8f (patch) | |
| tree | 41b2248c9a5b6b2d2be6f4f9a975565f9597e05e | |
| parent | 26cc2053e2e8a5392a08b21fc62a2cffd900f13f (diff) | |
| download | gdb-c6e6e3ab2b70458d34c4a7a2e7e1637d38d49e8f.zip gdb-c6e6e3ab2b70458d34c4a7a2e7e1637d38d49e8f.tar.gz gdb-c6e6e3ab2b70458d34c4a7a2e7e1637d38d49e8f.tar.bz2 | |
Re: More ecoff sanity checks
Yet another fuzzer fix.
* ecoff.c (ecoff_slurp_symbolic_header <FIX>): Zero counts when
associated pointer is zero.
(_bfd_ecoff_slurp_symbolic_info): Remove now unnecessary check.
| -rw-r--r-- | bfd/ecoff.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/bfd/ecoff.c b/bfd/ecoff.c index f293056..c4c2e53 100644 --- a/bfd/ecoff.c +++ b/bfd/ecoff.c @@ -468,6 +468,23 @@ ecoff_slurp_symbolic_header (bfd *abfd) goto error_return; } +#define FIX(start, count) \ + if (internal_symhdr->start == 0) \ + internal_symhdr->count = 0; + + FIX (cbLineOffset, cbLine); + FIX (cbDnOffset, idnMax); + FIX (cbPdOffset, ipdMax); + FIX (cbSymOffset, isymMax); + FIX (cbOptOffset, ioptMax); + FIX (cbAuxOffset, iauxMax); + FIX (cbSsOffset, issMax); + FIX (cbSsExtOffset, issExtMax); + FIX (cbFdOffset, ifdMax); + FIX (cbRfdOffset, crfd); + FIX (cbExtOffset, iextMax); +#undef FIX + /* Now we can get the correct number of symbols. */ abfd->symcount = internal_symhdr->isymMax + internal_symhdr->iextMax; @@ -580,7 +597,7 @@ _bfd_ecoff_slurp_symbolic_info (bfd *abfd, /* Get pointers for the numeric offsets in the HDRR structure. */ #define FIX(start, count, ptr, type) \ - if (internal_symhdr->start == 0 || internal_symhdr->count == 0) \ + if (internal_symhdr->count == 0) \ debug->ptr = NULL; \ else \ debug->ptr = (type) ((char *) raw \ |