[Nasm-bugs] [Bug 3392748] New: A inifinite loop causing heap overflow, and a null pointer dereferencing

[noreply-nasm at dev.nasm.us]

https://bugzilla.nasm.us/show_bug.cgi?id=3392748

            Bug ID: 3392748
           Summary: A inifinite loop causing heap overflow, and a null
                    pointer dereferencing
           Product: NASM
           Version: 2.16 (development)
          Hardware: All
                OS: Linux
            Status: OPEN
          Severity: normal
          Priority: Medium
         Component: Assembler
          Assignee: nobody at nasm.us
          Reporter: jasonliang30115 at gmail.com
                CC: chang.seok.bae at intel.com, gorcunov at gmail.com,
                    hpa at zytor.com, nasm-bugs at nasm.us
     Obtained from: Built from git using configure

Created attachment 411815
  --> https://bugzilla.nasm.us/attachment.cgi?id=411815&action=edit
This input will cause an infinite loop until nasm crash

Here is detailed information
environment (output of uname -a: Linux fc187431a65d 4.15.0-109-generic
#110-Ubuntu SMP Tue Jun 23 02:39:32 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
version: NASM version 2.16rc0
problem: run nasm with the following command
nasm -felf64 <input>
The `infinite_loop` input file provided will trigger a infinite loop, and the
memory consumed will keep growing until a OOM is triggered.

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