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CVE-2025-21988 – Linux Kernel Netfs Read Collect Data Corruption Vulnerability

The following table lists the changes that have been made to the
CVE-2025-21988 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 02, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved:

    fs/netfs/read_collect: add to next->prev_donated

    If multiple subrequests donate data to the same “next” request
    (depending on the subrequest completion order), each of them would
    overwrite the `prev_donated` field, causing data corruption and a
    BUG() crash (“Can’t donate prior to front”).
    Added Reference https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e
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