In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Fix deletion race condition
System crash when using debug kernel due to link list corruption. The cause
of the link list corruption is due to session deletion was allowed to queue
up twice. Here's the internal trace that show the same port was allowed to
double queue for deletion on different cpu.
20808683956 015 qla2xxx [0000:13:00.1]-e801:4: Scheduling sess ffff93ebf9306800 for deletion 50:06:0e:80:12:48:ff:50 fc4_type 1
20808683957 027 qla2xxx [0000:13:00.1]-e801:4: Scheduling sess ffff93ebf9306800 for deletion 50:06:0e:80:12:48:ff:50 fc4_type 1
Move the clearing/setting of deleted flag lock.
Security readout for executives and security teams
Plain-English summary
This is a Linux kernel flaw in the qla2xxx SCSI driver. A race during session deletion can corrupt a linked list and crash the system, based on the kernel description. The available sources do not provide CVSS, remote exploitability, or data-theft impact.
Executive priority
Treat as an operational resilience issue for Linux storage infrastructure. Prioritize affected storage hosts, but avoid emergency assumptions without evidence of exploitation or broader impact.
Technical view
The bug allows the same qla2xxx session to be queued for deletion twice on different CPUs. The kernel fix moves clearing and setting of the deleted flag under locking to prevent linked-list corruption and crash behavior.
Likely exposure
Likely limited to Linux systems running affected kernel versions where the qla2xxx storage driver is present or active. The source bundle does not prove exposure for all Linux deployments.
Exploitation context
No active exploitation is stated in the provided sources, and KEV is false. The evidence describes a crash condition from a race, not a weaponized exploit path.
Researcher notes
The public record is sparse: no CVSS, CWE, exploit status, or detailed affected matrix beyond Linux version data and stable commits. Analysis should stay tied to kernel version and qla2xxx usage.
Mitigation direction
Apply Linux kernel vendor updates containing the referenced stable fixes.
Prioritize storage hosts where qla2xxx is loaded or required.
Check distribution advisories for exact fixed package versions.
If patching is delayed, follow vendor guidance for supported mitigations.
Validation and detection
Inventory Linux kernel versions against the affected version data.
Identify systems with qla2xxx built, loaded, or operationally required.
Confirm the deployed kernel includes one of the referenced stable fixes.
Review kernel logs for qla2xxx session deletion or linked-list corruption crashes.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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cve · low confidence lookup
CVE-2023-53615 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
0CVSS vectors
3Timeline events
0ADP providers
7Source links
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
CVE publishedCVE Program
The CVE record was published.
Oct 4, 2025, 15:44 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.