From: Kees Cook <keescook@chromium.org>
To: "J. Bruce Fields" <bfields@redhat.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/9] rtl8192*: display ESSIDs using %pE
Date: Thu, 5 Sep 2019 13:53:43 -0700 [thread overview]
Message-ID: <201909051352.89D121A4@keescook> (raw)
In-Reply-To: <1567712673-1629-1-git-send-email-bfields@redhat.com>
On Thu, Sep 05, 2019 at 03:44:25PM -0400, J. Bruce Fields wrote:
> From: "J. Bruce Fields" <bfields@redhat.com>
>
> Everywhere else in the kernel ESSIDs are printed using %pE, and I can't
> see why there should be an exception here.
I would expand this rationale slightly: using "n" here makes no sense
because they are already NUL-terminated strings. The "n" modifier could
only be used with string_escape_mem() which takes a "length" argument.
Regardless:
Acked-by: Kees Cook <keescook@chromium.org>
-Kees
>
> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
> ---
> drivers/staging/rtl8192e/rtllib.h | 2 +-
> drivers/staging/rtl8192u/ieee80211/ieee80211.h | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
> index 2dd57e88276e..096254e422b3 100644
> --- a/drivers/staging/rtl8192e/rtllib.h
> +++ b/drivers/staging/rtl8192e/rtllib.h
> @@ -2132,7 +2132,7 @@ static inline const char *escape_essid(const char *essid, u8 essid_len)
> return escaped;
> }
>
> - snprintf(escaped, sizeof(escaped), "%*pEn", essid_len, essid);
> + snprintf(escaped, sizeof(escaped), "%*pE", essid_len, essid);
> return escaped;
> }
>
> diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
> index d36963469015..3963a08b9eb2 100644
> --- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h
> +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
> @@ -2426,7 +2426,7 @@ static inline const char *escape_essid(const char *essid, u8 essid_len)
> return escaped;
> }
>
> - snprintf(escaped, sizeof(escaped), "%*pEn", essid_len, essid);
> + snprintf(escaped, sizeof(escaped), "%*pE", essid_len, essid);
> return escaped;
> }
>
> --
> 2.21.0
>
--
Kees Cook
next prev parent reply other threads:[~2019-09-05 20:53 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190905193604.GC31247@fieldses.org>
2019-09-05 19:44 ` [PATCH 1/9] rtl8192*: display ESSIDs using %pE J. Bruce Fields
2019-09-05 19:44 ` [PATCH 2/9] thunderbolt: show key using %*s not %*pE J. Bruce Fields
2019-09-05 21:17 ` Kees Cook
2019-09-09 19:34 ` Joe Perches
2019-09-05 19:44 ` [PATCH 3/9] staging: wlan-ng: use "%*pE" for serial number J. Bruce Fields
2019-09-05 21:30 ` Kees Cook
2019-09-05 19:44 ` [PATCH 4/9] Remove unused string_escape_*_any_np J. Bruce Fields
2019-09-05 21:32 ` Kees Cook
2019-09-05 19:44 ` [PATCH 5/9] Remove unused %*pE[achnops] formats J. Bruce Fields
2019-09-05 21:34 ` Kees Cook
2019-09-06 10:01 ` Andy Shevchenko
2019-09-06 10:03 ` Andy Shevchenko
2019-09-05 19:44 ` [PATCH 6/9] Eliminate unused ESCAPE_NULL, ESCAPE_SPACE flags J. Bruce Fields
2019-09-05 22:11 ` Kees Cook
2019-09-06 10:17 ` Andy Shevchenko
2019-09-05 19:44 ` [PATCH 7/9] Simplify string_escape_mem J. Bruce Fields
2019-09-05 22:29 ` Kees Cook
2019-09-05 19:44 ` [PATCH 8/9] minor kstrdup_quotable simplification J. Bruce Fields
2019-09-05 22:31 ` Kees Cook
2019-09-05 19:44 ` [PATCH 9/9] Remove string_escape_mem_ascii J. Bruce Fields
2019-09-05 22:34 ` Kees Cook
2019-09-06 10:20 ` Andy Shevchenko
2019-09-05 20:53 ` Kees Cook [this message]
2019-09-06 9:38 ` [PATCH 1/9] rtl8192*: display ESSIDs using %pE Andy Shevchenko
2019-09-06 15:53 ` Kees Cook
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