linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Petr Mladek <pmladek@suse.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Richard Fitzgerald <rf@opensource.cirrus.com>,
	linux-kernel@vger.kernel.org,
	Steven Rostedt <rostedt@goodmis.org>,
	Sergey Senozhatsky <senozhatsky@chromium.org>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	kernel test robot <oliver.sang@intel.com>
Subject: Re: [PATCH v1 1/1] lib/test_scanf: Handle n_bits == 0 in random tests
Date: Fri, 30 Jul 2021 12:45:59 +0200	[thread overview]
Message-ID: <YQPYZ0af97pJ4Gzc@alley> (raw)
In-Reply-To: <20210727150132.28920-1-andriy.shevchenko@linux.intel.com>

On Tue 2021-07-27 18:01:32, Andy Shevchenko wrote:
> UBSAN reported (via LKP)
> 
> [   11.021349][    T1] UBSAN: shift-out-of-bounds in lib/test_scanf.c:275:51
> [   11.022782][    T1] shift exponent 32 is too large for 32-bit type 'unsigned int'
> 
> When n_bits == 0, the shift is out of range. Switch code to use GENMASK
> to handle this case.
> 
> Fixes: 50f530e176ea ("lib: test_scanf: Add tests for sscanf number conversion")
> Reported-by: kernel test robot <oliver.sang@intel.com>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

The patch is committed in linux/printk.git, branch for-5.15.

I would send it for 4.14 if there was another urgent fix needed.
But this one does not look important enough to hurry it up alone.

Best Regards,
Petr

      parent reply	other threads:[~2021-07-30 10:46 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-27 15:01 Andy Shevchenko
2021-07-27 15:27 ` Richard Fitzgerald
2021-07-30 10:45 ` Petr Mladek [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=YQPYZ0af97pJ4Gzc@alley \
    --to=pmladek@suse.com \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@rasmusvillemoes.dk \
    --cc=oliver.sang@intel.com \
    --cc=rf@opensource.cirrus.com \
    --cc=rostedt@goodmis.org \
    --cc=senozhatsky@chromium.org \
    --subject='Re: [PATCH v1 1/1] lib/test_scanf: Handle n_bits == 0 in random tests' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).