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Fix oobread in the xcoff64 parser ##crash

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pancake 2023-04-12 18:07:13 +02:00
parent 90dc5c64f7
commit 3456d0d16e
2 changed files with 3 additions and 0 deletions
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1
doc/fortunes.fun
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@ -321,3 +321,4 @@ Watch until the end!
Don't forget to subscribe!
Ah shit, here we go again.
Checking whether this software can be played...
Will it blend?

2
libr/bin/format/coff/xcoff64.c
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@ -88,6 +88,8 @@ static bool r_bin_xcoff64_init_scn_hdr(RBinXCoff64Obj *obj) {
ut64 offset = sizeof (struct xcoff64_hdr) + obj->hdr.f_opthdr;
size = obj->hdr.f_nscns * sizeof (struct xcoff64_scn_hdr);
if (offset > obj->size || offset + size > obj->size || size < 0) {
obj->hdr.f_nscns = 0;
obj->scn_hdrs = NULL;
return false;
}
obj->scn_hdrs = calloc (1, size + sizeof (struct xcoff64_scn_hdr));