CVE-2026-72082

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

scsi: elx: efct: Fix refcount leak in efct_hw_io_abort()

When efct_hw_reqtag_alloc() fails in efct_hw_io_abort(), the error path

returns -ENOSPC without releasing the reference obtained via

kref_get_unless_zero() earlier in the function. All other error paths

correctly drop the reference. This causes a permanent reference leak on the

io_to_abort object.

Additionally, the abort_in_progress flag is left set to true on this path,

which means future abort attempts for the same I/O will immediately return

-EINPROGRESS even though the abort was never submitted, effectively

blocking recovery.

Fix this by adding the missing kref_put() call and reset abort_in_progress

to false, matching the cleanup done in the efct_hw_wq_write() failure path

below.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References