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asan: stack-buffer-overflow vms-lib.c:367

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* vms-lib.c (vms_traverse_index): Account for vms_kbn size when
	sanity checking keylen.
This commit is contained in:
Alan Modra 2021-05-05 13:33:00 +09:30
parent 5318ba65f8
commit c38c6234f2
2 changed files with 6 additions and 1 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2021-05-05 Alan Modra <amodra@gmail.com>
* vms-lib.c (vms_traverse_index): Account for vms_kbn size when
sanity checking keylen.
2021-05-04 Nick Clifton <nickc@redhat.com>
* libbfd.c (bfd_malloc): Provide some documenation. Treat a size

2
bfd/vms-lib.c
View File

@ -357,7 +357,7 @@ vms_traverse_index (bfd *abfd, unsigned int vbn, struct carsym_mem *cs,
return false;
kbn = (struct vms_kbn *)(kblk + koff);
klen = bfd_getl16 (kbn->keylen);
if (klen > sizeof (kblk) - koff)
if (klen > sizeof (kblk) - sizeof (struct vms_kbn) - koff)
return false;
kvbn = bfd_getl32 (kbn->rfa.vbn);
koff = bfd_getl16 (kbn->rfa.offset);