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Bug#1106070: [6.12.y regression] loosetup: failed to set up loop device: Invalid argument after 184b147b9f7f ("loop: Add sanity check for read/write_iter")

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From Christian Hesse <list@eworm.de>
Newsgroups linux.debian.bugs.dist, linux.kernel, linux.debian.kernel
Subject Bug#1106070: [6.12.y regression] loosetup: failed to set up loop device: Invalid argument after 184b147b9f7f ("loop: Add sanity check for read/write_iter")
Date Tue, 20 May 2025 09:10:01 +0200
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X-Original-Cc Roland Clobus <rclobus@rclobus.nl>, Lizhi Xu <lizhi.xu@windriver.com>, Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>, 1106070@bugs.debian.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, regressions@lists.linux.dev
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Xref csiph.com linux.debian.bugs.dist:1247155 linux.kernel:1743445 linux.debian.kernel:87618

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Salvatore Bonaccorso <carnil@debian.org> on Tue, 2025/05/20 07:57:
> In Debian Roland Clobus reported a regression with setting up loop
> devices from a backing squashfs file lying on read-only mounted target
> directory from a iso.
> 
> The original report is at:
> https://bugs.debian.org/1106070

We are suffering the same for Arch Linux. Already reported here:

https://lore.kernel.org/all/20250519175640.2fcac001@leda.eworm.net/
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Bug#1106070: [6.12.y regression] loosetup: failed to set up loop device: Invalid argument after 184b147b9f7f ("loop: Add sanity check for read/write_iter") Salvatore Bonaccorso <carnil@debian.org> - 2025-05-20 08:10 +0200
  Bug#1106070: [6.12.y regression] loosetup: failed to set up loop device: Invalid argument after 184b147b9f7f ("loop: Add sanity check for read/write_iter") Salvatore Bonaccorso <carnil@debian.org> - 2025-05-20 08:20 +0200
  Bug#1106070: [6.12.y regression] loosetup: failed to set up loop device: Invalid argument after 184b147b9f7f ("loop: Add sanity check for read/write_iter") Christian Hesse <list@eworm.de> - 2025-05-20 09:10 +0200
  Bug#1106070: [6.12.y regression] loosetup: failed to set up loop device: Invalid argument after 184b147b9f7f ("loop: Add sanity check for read/write_iter") Jens Axboe <axboe@kernel.dk> - 2025-05-20 17:30 +0200

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