All of lore.kernel.org
 help / color / mirror / Atom feed
From: Dan Carpenter <error27@gmail.com>
To: Mark Brown <broonie@kernel.org>
Cc: linux-block@vger.kernel.org, ZHOU Jiaxiang <me@fxti.xyz>,
	Damien Le Moal <dlemoal@kernel.org>
Subject: [bug report] Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git
Date: Mon, 21 Sep 2026 22:18:47 +0300	[thread overview]
Message-ID: <arGDF5byCiew-pqQ@stanley.mountain> (raw)

Hello Mark Brown,

Commit a9ce2250a714 ("Merge branch 'for-next' of
https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git")
from Sep 18, 2026 (linux-next), leads to the following Smatch static
checker warning:

	block/blk-zoned.c:2200 disk_init_revalidate_args()
	warn: impossible condition '(args->nr_zones > (~0)) => (0-u32max > u32max)'

block/blk-zoned.c
    2195 static int disk_init_revalidate_args(struct gendisk *disk,
    2196                                      struct blk_revalidate_zone_args *args)
    2197 {
    2198         args->disk = disk;
    2199         args->nr_zones = disk_get_nr_zones(disk, args->capacity);
--> 2200         if (args->nr_zones > UINT_MAX)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^

The linux-next merge for linux-block went a bit sideways and
commit 7c431d61b69a ("scsi: block: Fix zones_cond out-of-bounds write on
zone report") needs to be re-done.

    2201                 return -EINVAL;
    2202 
    2203         /* Cached zone conditions: 1 byte per zone */
    2204         args->zones_state = kzalloc(args->nr_zones, GFP_NOIO);
    2205         if (!args->zones_state)
    2206                 return -ENOMEM;
    2207 
    2208         return 0;
    2209 }

This email is a free service from the Smatch-CI project [smatch.sf.net].

regards,
dan carpenter

             reply	other threads:[~2026-09-21 19:18 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-21 19:18 Dan Carpenter [this message]
2026-09-22  3:16 ` [bug report] Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git Damien Le Moal

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=arGDF5byCiew-pqQ@stanley.mountain \
    --to=error27@gmail.com \
    --cc=broonie@kernel.org \
    --cc=dlemoal@kernel.org \
    --cc=linux-block@vger.kernel.org \
    --cc=me@fxti.xyz \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.