In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix data corruption after failed write
When buffered write fails to copy data into underlying page cache page,
ocfs2_write_end_nolock() just zeroes out and dirties the page. This can
leave dirty page beyond EOF and if page writeback tries to write this page
before write succeeds and expands i_size, page gets into inconsistent
state where page dirty bit is clear but buffer dirty bits stay set
resulting in page data never getting written and so data copied to the
page is lost. Fix the problem by invalidating page beyond EOF after
failed write.
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Affected Vendors & Products
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History
Mon, 05 May 2025 14:00:00 +0000
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Fri, 02 May 2025 16:00:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix data corruption after failed write When buffered write fails to copy data into underlying page cache page, ocfs2_write_end_nolock() just zeroes out and dirties the page. This can leave dirty page beyond EOF and if page writeback tries to write this page before write succeeds and expands i_size, page gets into inconsistent state where page dirty bit is clear but buffer dirty bits stay set resulting in page data never getting written and so data copied to the page is lost. Fix the problem by invalidating page beyond EOF after failed write. | |
Title | ocfs2: fix data corruption after failed write | |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-05-02T15:55:30.453Z
Updated: 2025-05-04T12:50:20.030Z
Reserved: 2025-05-02T15:51:43.549Z
Link: CVE-2023-53081

No data.

Status : Awaiting Analysis
Published: 2025-05-02T16:15:27.117
Modified: 2025-05-05T20:54:45.973
Link: CVE-2023-53081
