linux-kernel - Re: [PATCH] block: fix memory leak in __blkdev_issue_zero

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Message-Id: <176487243751.985814.383120227280182840.b4-ty@kernel.dk>
Date: Thu, 04 Dec 2025 11:20:37 -0700
From: Jens Axboe <axboe@...nel.dk>
To: martin.petersen@...cle.com, Shaurya Rane <ssrane_b23@...vjti.ac.in>
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, 
 skhan@...uxfoundation.org, linux-kernel-mentees@...ts.linux.dev, 
 david.hunter.linux@...il.com, khalid@...nel.org, 
 syzbot+527a7e48a3d3d315d862@...kaller.appspotmail.com, 
 Keith Busch <kbusch@...nel.org>
Subject: Re: [PATCH] block: fix memory leak in __blkdev_issue_zero_pages


On Thu, 04 Dec 2025 23:42:59 +0530, Shaurya Rane wrote:
> Move the fatal signal check before bio_alloc() to prevent a memory
> leak when BLKDEV_ZERO_KILLABLE is set and a fatal signal is pending.
> 
> Previously, the bio was allocated before checking for a fatal signal.
> If a signal was pending, the code would break out of the loop without
> freeing or chaining the just-allocated bio, causing a memory leak.
> 
> [...]

Applied, thanks!

[1/1] block: fix memory leak in __blkdev_issue_zero_pages
      commit: 220d82ee063a38fcdc658b8d4274f59de4398dd0

Best regards,
-- 
Jens Axboe