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CVE-2024-58078 – Linux Kernel Misc Dynamic Minor Allocation IDA Free Vulnerability

The following table lists the changes that have been made to the
CVE-2024-58078 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

    Mar. 06, 2025

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

    misc: misc_minor_alloc to use ida for all dynamic/misc dynamic minors

    misc_minor_alloc was allocating id using ida for minor only in case of
    MISC_DYNAMIC_MINOR but misc_minor_free was always freeing ids
    using ida_free causing a mismatch and following warn:
    > > WARNING: CPU: 0 PID: 159 at lib/idr.c:525 ida_free+0x3e0/0x41f
    > > ida_free called for id=127 which is not allocated.
    > > <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< > [] ida_free+0x3e0/0x41f
    > > [] misc_minor_free+0x3e/0xbc
    > > [] misc_deregister+0x171/0x1b3

    misc_minor_alloc is changed to allocate id from ida for all minors
    falling in the range of dynamic/ misc dynamic minors
    Added Reference https://git.kernel.org/stable/c/3df72111c39f7e4c5029c9ff720b56ec2e05b764
    Added Reference https://git.kernel.org/stable/c/6635332d246d7db89b90e145f2bf937406cecaf0
    Added Reference https://git.kernel.org/stable/c/6d04d2b554b14ae6c428a9c60b6c85f1e5c89f68
    Added Reference https://git.kernel.org/stable/c/8b4120b3e060e137eaa8dc76a1c40401088336e5
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