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Review reviewHigh

CVE-2023-54100

Linux

In the Linux kernel, the following vulnerability has been resolved: scsi: qedi: Fix use after free bug in qedi_remove() In qedi_probe() we call __qedi_probe() which initializes &qedi->recovery_work with qedi_recovery_handler() and &qedi->board_disable_work with qedi_board_disable_work(). When qedi_schedule_recovery_handler() is called, schedule_delayed_work() will finally start the work. In qedi_remove(), which is called to remove the driver, the following sequence may be observed: Fix this by finishing the work before cleanup in qedi_remove(). CPU0 CPU1 |qedi_recovery_handler qedi_remove |...

CVSS
7.8
EPSS
0.14%
3.81% percentile
CISA KEV
Not listed
Published
2025.12.24
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.14%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: scsi: qedi: Fix use after free bug in qedi_remove() In qedi_probe() we call __qedi_probe() which initializes &qedi->recovery_work with qedi_recovery_handler() and &qedi->board_disable_work with qedi_board_disable_work(). When qedi_schedule_recovery_handler() is called, schedule_delayed_work() will finally start the work. In qedi_remove(), which is called to remove the driver, the following sequence may be observed: Fix this by finishing the work before cleanup in qedi_remove(). CPU0 CPU1 |qedi_recovery_handler qedi_remove |...

Affected product and versions

Product
Linux
Affected versions
>= 4b1068f5d74b6cc92319bd7eba40809b1222e73f < fa19c533ab19161298f0780bcc6523af88f6fd20, >= 4b1068f5d74b6cc92319bd7eba40809b1222e73f < 5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151, >= 4b1068f5d74b6cc92319bd7eba40809b1222e73f < 3738a230831e861503119ee2691c4a7dc56ed60a, >= 4b1068f5d74b6cc92319bd7eba40809b1222e73f < 89f6023fc321c958a0fb11f143a6eb4544ae3940, >= 4b1068f5d74b6cc92319bd7eba40809b1222e73f < 124027cd1a624ce0347adcd59241a9966a726b22, >= 4b1068f5d74b6cc92319bd7eba40809b1222e73f < c5749639f2d0a1f6cbe187d05f70c2e7c544d748, >= 5.7
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available