From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: "Miguel García" <miguelgarciaroman8@gmail.com>,
"Sasha Levin" <sashal@kernel.org>
Subject: Re: [PATCH 6.1.y] block: make bio_check_eod work for zero sized devices
Date: Sun, 13 Apr 2025 12:46:50 -0400 [thread overview]
Message-ID: <20250412105909-5300d45443777a29@stable.kernel.org> (raw)
In-Reply-To: <20250412102424.56383-1-miguelgarciaroman8@gmail.com>
[ Sasha's backport helper bot ]
Hi,
✅ All tests passed successfully. No issues detected.
No action required from the submitter.
The upstream commit SHA1 provided is correct: 3eb96946f0be6bf447cbdf219aba22bc42672f92
WARNING: Author mismatch between patch and upstream commit:
Backport author: <miguelgarciaroman8@gmail.com>
Commit author: Christoph Hellwig<hch@lst.de>
Status in newer kernel trees:
6.14.y | Present (exact SHA1)
6.13.y | Present (exact SHA1)
6.12.y | Present (exact SHA1)
6.6.y | Present (exact SHA1)
Note: The patch differs from the upstream commit:
---
1: 3eb96946f0be6 ! 1: 6a6f180aae691 block: make bio_check_eod work for zero sized devices
@@ Metadata
## Commit message ##
block: make bio_check_eod work for zero sized devices
+ commit 3eb96946f0be6bf447cbdf219aba22bc42672f92 upstream.
+
+ This patch is a backport.
+
Since the dawn of time bio_check_eod has a check for a non-zero size of
the device. This doesn't really make any sense as we never want to send
I/O to a device that's been set to zero size, or never moved out of that.
@@ Commit message
the issue really goes back way before git history.
Fixes: 9fe95babc742 ("zram: remove valid_io_request")
- Reported-by: syzbot+b8d61a58b7c7ebd2c8e0@syzkaller.appspotmail.com
+ Reported-by: syzbot+2aca91e1d3ae43aef10c@syzkaller.appspotmail.com
+ Bug: https://syzkaller.appspot.com/bug?extid=2aca91e1d3ae43aef10c
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230524060538.1593686-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
+ (cherry picked from commit 3eb96946f0be6bf447cbdf219aba22bc42672f92)
+ Signed-off-by: Miguel García <miguelgarciaroman8@gmail.com>
## block/blk-core.c ##
@@ block/blk-core.c: static inline int bio_check_eod(struct bio *bio)
---
Results of testing on various branches:
| Branch | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-6.1.y | Success | Success |
prev parent reply other threads:[~2025-04-13 16:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-12 10:24 [PATCH 6.1.y] block: make bio_check_eod work for zero sized devices Miguel García
2025-04-12 15:43 ` Greg KH
2025-04-13 16:46 ` Sasha Levin [this message]
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