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block/fops: fix refcount underflow in __blkdev_direct_IO()#924

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block/fops: fix refcount underflow in __blkdev_direct_IO()#924
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@blktests-ci blktests-ci Bot commented Jun 3, 2026

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Pull request for series with
subject: block/fops: fix refcount underflow in __blkdev_direct_IO()
version: 1
url: https://patchwork.kernel.org/project/linux-block/list/?series=1104964

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blktests-ci Bot commented Jun 3, 2026

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Upstream branch: e43ffb6
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the linus-master_base branch from c6dc343 to fc36596 Compare June 3, 2026 13:56
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Upstream branch: ba3e43a
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 2769fd0 to 1910171 Compare June 3, 2026 14:15
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blktests-ci Bot commented Jun 5, 2026

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Upstream branch: ddd664b
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 1910171 to 0625c6c Compare June 5, 2026 10:02
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blktests-ci Bot commented Jun 7, 2026

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Upstream branch: 979c294
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 0625c6c to 548f304 Compare June 7, 2026 15:09
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Upstream branch: acb7500
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 548f304 to 1bc053b Compare June 10, 2026 13:47
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blktests-ci Bot commented Jun 11, 2026

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Upstream branch: 9716c08
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 1bc053b to 7fb9e4e Compare June 11, 2026 09:32
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Upstream branch: 2a2974b
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 7fb9e4e to 0810607 Compare June 12, 2026 22:57
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Upstream branch: 062871f
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 0810607 to e808c9b Compare June 13, 2026 01:54
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Upstream branch: 66affa3
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from e808c9b to aa3de51 Compare June 17, 2026 13:51
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Upstream branch: bade58e
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from aa3de51 to 9e22a04 Compare June 24, 2026 01:46
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blktests-ci Bot commented Jun 26, 2026

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Upstream branch: 4edcdef
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 9e22a04 to 193cf32 Compare June 26, 2026 09:05
@blktests-ci blktests-ci Bot force-pushed the linus-master_base branch from 4cc45a3 to 90ffd56 Compare June 29, 2026 17:14
@ISCAS-Vulab
block/fops: fix refcount underflow in __blkdev_direct_IO()
615d2f9 
__blkdev_direct_IO() calls bio_get() and bio_put() around
I/O operations, but if the I/O fails, the error path may call
bio_put() twice, causing a refcount underflow.

Fix this by moving the bio_put() call from the error path into
the cleanup section that is only executed once, regardless of
whether the I/O succeeded or failed.

Fixes: 3d8b5a2 ("block: add support to pass user meta buffer")
Cc: stable@vger.kernel.org
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
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blktests-ci Bot commented Jun 29, 2026

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Upstream branch: dc59e4f
series: https://patchwork.kernel.org/project/linux-block/list/?series=1104964
version: 1

@blktests-ci blktests-ci Bot force-pushed the series/1104964=>linus-master branch from 193cf32 to 615d2f9 Compare June 29, 2026 18:06
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