[Nasm-bugs] [Bug 3392516] New: Malformed input file results in segmentation fault of NASM
noreply-nasm at gorcunov.org
noreply-nasm at gorcunov.org
Mon Sep 10 11:49:10 PDT 2018
https://bugzilla.nasm.us/show_bug.cgi?id=3392516
Bug ID: 3392516
Summary: Malformed input file results in segmentation fault of
NASM
Product: NASM
Version: 2.14 (development)
Hardware: All
OS: All
Status: OPEN
Severity: normal
Priority: Medium
Component: Assembler
Assignee: nobody at nasm.us
Reporter: j.zebor at f5.com
CC: gorcunov at gmail.com, hpa at zytor.com, nasm-bugs at nasm.us
Obtained from: Build from source archive using configure
Created attachment 411670
--> https://bugzilla.nasm.us/attachment.cgi?id=411670&action=edit
Malformed input file
Attached case is a file which results in a very similar case as reported in
bugs 3392447 & 3392329.
There are two differences with this finding that I've observed:
- Both 3392447 & 3392329 only reproduced for me with ASAN enabled. The attached
file can reproduce the issue without ASAN.
- The value of "value->type" in the attached case results in a very large
negative number in parse_line function.
This bug was found with American Fuzzy LOP.
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