[srslte-users] Reporting bug in examples/hl_example.c

[Bhargava Shastry]

Hi,

I would like to report a bug in the said file [1]. Problem is on line 65
[Bug report attached]. If one calls hl_example with a negative first
argument, the program segfaults because of an unchecked failure of malloc.

A fix is to bail out with an error message if nbits is negative *before*
the call to malloc or use strtoul [2] and assign it to (unsigned long)
nbits.

[1]:
https://github.com/srsLTE/srsLTE/blob/master/srslte/examples/hl_example.c#L65
[2]: http://pubs.opengroup.org/onlinepubs/9699919799/functions/strtoul.html

Regards,
Bhargava
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