[asterisk-bugs] [JIRA] (ASTERISK-25761) USAN: Potential runtime errors causing undefined behavior

[Badalian Vyacheslav (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25761?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=229470#comment-229470 ] 

Badalian Vyacheslav edited comment on ASTERISK-25761 at 2/12/16 1:17 PM:
-------------------------------------------------------------------------

used lineedit from asterisk:
{code}
[root at vm-asterisk04t asterisk]# find . -name "el.c"
./main/editline/el.c
{code}
becouse if i was use system we don't see debug info

{quote}
The following are codecs. I'm not sure if these are coding error's, if they should be unsigned variables instead of signed, or if they are intentionally taking advantage of the behavior. Can the "left shift of negative value" warning be suppressed for everything within the codecs folder?
{quote}
USAN does not have supression list :(

{quote}
These each require a backtrace to troubleshoot.
{quote}
gcc have compile flag to halt on first USAN, but before you must fix other behavior. usan does not have supression list :(




was (Author: slavon):
used lineedit from asterisk:
{code}
[root at vm-asterisk04t asterisk]# find . -name "el.c"
./main/editline/el.c
{code}
becouse if i use system we don't see debug info

{quote}
The following are codecs. I'm not sure if these are coding error's, if they should be unsigned variables instead of signed, or if they are intentionally taking advantage of the behavior. Can the "left shift of negative value" warning be suppressed for everything within the codecs folder?
{quote}
USAN does not have supression list :(

{quote}
These each require a backtrace to troubleshoot.
{quote}
gcc have compile flag to halt on first USAN, but before you must fix other behavior. usan does not have supression list :(



> USAN: Potential runtime errors causing undefined behavior
> ---------------------------------------------------------
>
>                 Key: ASTERISK-25761
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25761
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>    Affects Versions: 13.7.0
>         Environment: gcc version 5.2.1 20150902 (Red Hat 5.2.1-2) (GCC)
>            Reporter: Badalian Vyacheslav
>            Severity: Minor
>
> Hello!
> I send you a list of the errors found. Usan test. All errors are shown at the time of loading of modules. I hope you would be interested :)
> {code}
> /root/asterisk-13.7.0/include/asterisk/strings.h	1181	15	 runtime error	 signed integer overflow  193410279 * 33 cannot be represented in type 'int'
> /root/asterisk-13.7.0/include/asterisk/strings.h	1221	15	 runtime error	 signed integer overflow  193404514 * 33 cannot be represented in type 'int'
> chan_iax2.c	13511	2	 runtime error	 left shift of 1 by 31 places cannot be represented in type 'int'
> chan_sip.c	8724	2	 runtime error	 left shift of 1 by 31 places cannot be represented in type 'int'
> chan_sip.c	8725	2	 runtime error	 left shift of 3 by 30 places cannot be represented in type 'int'
> chan_sip.c	29976	3	 runtime error	 left shift of 1 by 31 places cannot be represented in type 'int'
> chan_sip.c	29977	3	 runtime error	 left shift of 1 by 31 places cannot be represented in type 'int'
> chan_sip.c	30304	2	 runtime error	 left shift of 1 by 31 places cannot be represented in type 'int'
> chan_sip.c	30305	2	 runtime error	 left shift of 3 by 30 places cannot be represented in type 'int'
> codec_adpcm.c	151	23	 runtime error	 left shift of negative value -4
> codec_g726.c	621	25	 runtime error	 left shift of negative value -12
> codec_g726.c	678	25	 runtime error	 left shift of negative value -12
> el.c	244	21	 runtime error	 left shift of negative value -2
> format_cap.c	173	7	 runtime error	 null pointer passed as argument 2, which is declared to never be null
> g722/g722_decode.c	80	39	 runtime error	 left shift of negative value -192
> g722/g722_decode.c	373	49	 runtime error	 left shift of negative value -1
> g722/g722_encode.c	80	39	 runtime error	 left shift of negative value -1
> src/lpc.c	156	28	 runtime error	 left shift of negative value -2961983
> src/lpc.c	235	42	 runtime error	 left shift of negative value -3457934
> src/preprocess.c	92	8	 runtime error	 left shift of negative value -4
> src/rpe.c	336	16	 runtime error	 left shift of negative value -4
> src/rpe.c	380	8	 runtime error	 left shift of negative value -1
> src/short_term.c	64	2	 runtime error	 left shift of negative value -18
> src/short_term.c	67	2	 runtime error	 left shift of negative value -2560
> src/short_term.c	70	2	 runtime error	 left shift of negative value -1792
> src/short_term.c	71	2	 runtime error	 left shift of negative value -341
> src/short_term.c	72	2	 runtime error	 left shift of negative value -1
> stasis_message_router.c	113	8	 runtime error	 null pointer passed as argument 2, which is declared to never be null
> stasis.c	913	8	 runtime error	 null pointer passed as argument 2, which is declared to never be null
> stdtime/localtime.c	828	20	 runtime error	 left shift of negative value -1
> {code}



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