* [dpdk-stable] [PATCH] app/procinfo: fix strncpy count issue
@ 2018-02-20 12:57 Radu Nicolau
2018-02-20 13:00 ` [dpdk-stable] [PATCH v2] " Radu Nicolau
2018-02-20 13:29 ` [dpdk-stable] [dpdk-dev] [PATCH] " Bruce Richardson
0 siblings, 2 replies; 6+ messages in thread
From: Radu Nicolau @ 2018-02-20 12:57 UTC (permalink / raw)
To: dev; +Cc: john.mcnamara, maryam.tahhan, reshma.pattan, Radu Nicolau, stable
Change strncpy count parameter to MAX_LONG_OPT_SZ-1 to avoid
overwriting the last NULL character and for consistency.
Fixes: 2deb6b5246d7 ("app/procinfo: add collectd format and host id")
Coverity issue: 30688
Cc: stable@dpdk.org
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
---
app/proc_info/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/app/proc_info/main.c b/app/proc_info/main.c
index 2f53e3c..5f0b745 100644
--- a/app/proc_info/main.c
+++ b/app/proc_info/main.c
@@ -159,7 +159,7 @@ proc_info_preparse_args(int argc, char **argv)
proc_info_usage(prgname);
return -1;
}
- strncpy(host_id, argv[i+1], sizeof(host_id));
+ strncpy(host_id, argv[i+1], MAX_LONG_OPT_SZ-1);
}
}
--
2.7.5
^ permalink raw reply [flat|nested] 6+ messages in thread* [dpdk-stable] [PATCH v2] app/procinfo: fix strncpy count issue
2018-02-20 12:57 [dpdk-stable] [PATCH] app/procinfo: fix strncpy count issue Radu Nicolau
@ 2018-02-20 13:00 ` Radu Nicolau
2018-02-20 13:52 ` [dpdk-stable] [PATCH v3] " Radu Nicolau
2018-02-20 13:29 ` [dpdk-stable] [dpdk-dev] [PATCH] " Bruce Richardson
1 sibling, 1 reply; 6+ messages in thread
From: Radu Nicolau @ 2018-02-20 13:00 UTC (permalink / raw)
To: dev; +Cc: john.mcnamara, maryam.tahhan, reshma.pattan, Radu Nicolau, stable
Change strncpy count parameter to MAX_LONG_OPT_SZ-1 to avoid
overwriting the last NULL character and for consistency.
Fixes: 2deb6b5246d7 ("app/procinfo: add collectd format and host id")
Coverity issue: 143252
Cc: stable@dpdk.org
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
---
v2: corrected coverity issue id
app/proc_info/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/app/proc_info/main.c b/app/proc_info/main.c
index 2f53e3c..5f0b745 100644
--- a/app/proc_info/main.c
+++ b/app/proc_info/main.c
@@ -159,7 +159,7 @@ proc_info_preparse_args(int argc, char **argv)
proc_info_usage(prgname);
return -1;
}
- strncpy(host_id, argv[i+1], sizeof(host_id));
+ strncpy(host_id, argv[i+1], MAX_LONG_OPT_SZ-1);
}
}
--
2.7.5
^ permalink raw reply [flat|nested] 6+ messages in thread* [dpdk-stable] [PATCH v3] app/procinfo: fix strncpy count issue
2018-02-20 13:00 ` [dpdk-stable] [PATCH v2] " Radu Nicolau
@ 2018-02-20 13:52 ` Radu Nicolau
2018-02-20 14:16 ` Bruce Richardson
0 siblings, 1 reply; 6+ messages in thread
From: Radu Nicolau @ 2018-02-20 13:52 UTC (permalink / raw)
To: dev
Cc: john.mcnamara, maryam.tahhan, reshma.pattan, bruce.richardson,
Radu Nicolau, stable
Replace strncpy with snprintf to avoid overwriting the last
NULL character.
Fixes: 2deb6b5246d7 ("app/procinfo: add collectd format and host id")
Coverity issue: 143252
Cc: stable@dpdk.org
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
---
v3: replaced strncpy with snprintf
app/proc_info/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/app/proc_info/main.c b/app/proc_info/main.c
index 2f53e3c..f90c144 100644
--- a/app/proc_info/main.c
+++ b/app/proc_info/main.c
@@ -159,7 +159,7 @@ proc_info_preparse_args(int argc, char **argv)
proc_info_usage(prgname);
return -1;
}
- strncpy(host_id, argv[i+1], sizeof(host_id));
+ snprintf(host_id, sizeof(host_id), "%s", argv[i+1]);
}
}
--
2.7.5
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [dpdk-stable] [PATCH v3] app/procinfo: fix strncpy count issue
2018-02-20 13:52 ` [dpdk-stable] [PATCH v3] " Radu Nicolau
@ 2018-02-20 14:16 ` Bruce Richardson
2018-03-27 22:25 ` Thomas Monjalon
0 siblings, 1 reply; 6+ messages in thread
From: Bruce Richardson @ 2018-02-20 14:16 UTC (permalink / raw)
To: Radu Nicolau; +Cc: dev, john.mcnamara, maryam.tahhan, reshma.pattan, stable
On Tue, Feb 20, 2018 at 01:52:22PM +0000, Radu Nicolau wrote:
> Replace strncpy with snprintf to avoid overwriting the last
> NULL character.
>
> Fixes: 2deb6b5246d7 ("app/procinfo: add collectd format and host id")
> Coverity issue: 143252
>
> Cc: stable@dpdk.org
>
> Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
> ---
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [dpdk-stable] [PATCH v3] app/procinfo: fix strncpy count issue
2018-02-20 14:16 ` Bruce Richardson
@ 2018-03-27 22:25 ` Thomas Monjalon
0 siblings, 0 replies; 6+ messages in thread
From: Thomas Monjalon @ 2018-03-27 22:25 UTC (permalink / raw)
To: Radu Nicolau
Cc: stable, Bruce Richardson, dev, john.mcnamara, maryam.tahhan,
reshma.pattan
20/02/2018 15:16, Bruce Richardson:
> On Tue, Feb 20, 2018 at 01:52:22PM +0000, Radu Nicolau wrote:
> > Replace strncpy with snprintf to avoid overwriting the last
> > NULL character.
> >
> > Fixes: 2deb6b5246d7 ("app/procinfo: add collectd format and host id")
> > Coverity issue: 143252
> >
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
> > ---
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Applied, thanks
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [dpdk-stable] [dpdk-dev] [PATCH] app/procinfo: fix strncpy count issue
2018-02-20 12:57 [dpdk-stable] [PATCH] app/procinfo: fix strncpy count issue Radu Nicolau
2018-02-20 13:00 ` [dpdk-stable] [PATCH v2] " Radu Nicolau
@ 2018-02-20 13:29 ` Bruce Richardson
1 sibling, 0 replies; 6+ messages in thread
From: Bruce Richardson @ 2018-02-20 13:29 UTC (permalink / raw)
To: Radu Nicolau; +Cc: dev, john.mcnamara, maryam.tahhan, reshma.pattan, stable
On Tue, Feb 20, 2018 at 12:57:36PM +0000, Radu Nicolau wrote:
> Change strncpy count parameter to MAX_LONG_OPT_SZ-1 to avoid
> overwriting the last NULL character and for consistency.
>
> Fixes: 2deb6b5246d7 ("app/procinfo: add collectd format and host id")
> Coverity issue: 30688
>
> Cc: stable@dpdk.org
>
> Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
> ---
strncpy is a very nasty function that is easy to get wrong. Rather than
fixing it's off by one errors, I think a better fix is to use snprintf
as is done in most other places.
/Bruce
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2018-03-27 22:25 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2018-02-20 12:57 [dpdk-stable] [PATCH] app/procinfo: fix strncpy count issue Radu Nicolau
2018-02-20 13:00 ` [dpdk-stable] [PATCH v2] " Radu Nicolau
2018-02-20 13:52 ` [dpdk-stable] [PATCH v3] " Radu Nicolau
2018-02-20 14:16 ` Bruce Richardson
2018-03-27 22:25 ` Thomas Monjalon
2018-02-20 13:29 ` [dpdk-stable] [dpdk-dev] [PATCH] " Bruce Richardson
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