From: coverity-bot <keescook@chromium.org>
To: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>, Hannes Reinecke <hare@suse.com>,
Jens Axboe <axboe@kernel.dk>,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>,
linux-next@vger.kernel.org
Subject: Coverity: blkdev_zone_mgmt(): Memory - illegal accesses
Date: Mon, 11 Nov 2019 17:35:00 -0800 [thread overview]
Message-ID: <201911111735.3EA3258CBC@keescook> (raw)
Hello!
This is an experimental automated report about issues detected by Coverity
from a scan of next-20191108 as part of the linux-next weekly scan project:
https://scan.coverity.com/projects/linux-next-weekly-scan
You're getting this email because you were associated with the identified
lines of code (noted below) that were touched by recent commits:
a2d6b3a2d390 ("block: Improve zone reset execution")
Coverity reported the following:
*** CID 1487849: Memory - illegal accesses (USE_AFTER_FREE)
/block/blk-zoned.c: 293 in blkdev_zone_mgmt()
287
288 /* This may take a while, so be nice to others */
289 cond_resched();
290 }
291
292 ret = submit_bio_wait(bio);
vvv CID 1487849: Memory - illegal accesses (USE_AFTER_FREE)
vvv Calling "bio_put" dereferences freed pointer "bio".
293 bio_put(bio);
294
295 return ret;
296 }
297 EXPORT_SYMBOL_GPL(blkdev_zone_mgmt);
298
If this is a false positive, please let us know so we can mark it as
such, or teach the Coverity rules to be smarter. If not, please make
sure fixes get into linux-next. :) For patches fixing this, please
include these lines (but double-check the "Fixes" first):
Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1487849 ("Memory - illegal accesses")
Fixes: a2d6b3a2d390 ("block: Improve zone reset execution")
Thanks for your attention!
--
Coverity-bot
next reply other threads:[~2019-11-12 1:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-12 1:35 coverity-bot [this message]
2019-11-18 20:46 ` Coverity: blkdev_zone_mgmt(): Memory - illegal accesses Kees Cook
2019-11-19 2:57 ` Damien Le Moal
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