Security readout for executives and security teams
Plain-English summary
This Linux kernel issue can turn a rare driver removal error into a resource leak and possible crash. It is rated high because a local, low-privileged attacker could potentially affect confidentiality, integrity, and availability on affected systems. No source provided shows active exploitation.
Executive priority
Prioritize remediation where affected Linux kernels run on production or embedded systems using this driver. The risk is high but appears local-only from supplied evidence, so patch through normal kernel maintenance unless exposed systems are safety-critical or shared multi-user hosts.
Technical view
The Linux kernel FEC network driver returned early when pm_runtime_resume_and_get() failed during remove(). The driver core ignores that return value and continues removal, freeing devm-managed resources. Later callbacks may access an already-freed register mapping, causing leakage and likely crashes.
Likely exposure
Exposure is most likely on Linux systems running affected kernel versions with the FEC driver present. The source lists affected kernel lines including 5.4 through 6.4 and fixed stable commits, but does not identify distributions or device models.
Exploitation context
The CVSS vector is local, low complexity, low privileges, and no user interaction. KEV is false, and the supplied sources do not report public exploitation. Treat this as a local kernel stability and privilege-risk issue, not confirmed internet-exploited activity.
Researcher notes
Evidence is limited to the CVE record and kernel stable references. The root issue is remove-path error handling after pm_runtime_resume_and_get() failure, with driver-core behavior making the early return unsafe. No exploit details or distribution-specific advisories were provided.
Mitigation direction
- Update to a vendor-supported kernel containing the referenced stable fixes.
- Check distribution advisories for backported fixes matching your kernel branch.
- Prioritize systems where the FEC driver is present or required.
- Avoid unsupported kernels that cannot receive the stable fix.
- Schedule reboots where kernel replacement is required.
Validation and detection
- Inventory kernel versions against the affected and fixed version data.
- Confirm whether the running kernel includes the relevant stable commit.
- Check whether the FEC driver is built, loaded, or required.
- Review logs for crashes around device removal or runtime power management.
- Validate fixes first on representative maintenance systems.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-415: Exact CWE lookup
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Open ATT&CK lookupCVE-2023-53308 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/d52a0cca591e899d4e5c8ab19e067b4c6b7d104fCVE reference, Linux
- https://git.kernel.org/stable/c/be85912c36ddca3e8b2eef1b5392cd8db6bdb730CVE reference, Linux
- https://git.kernel.org/stable/c/b22b514209ff8c4287abb853399890ab97e1b5caCVE reference, Linux
- https://git.kernel.org/stable/c/83996d317b1deddc85006376082e8886f55aa709CVE reference, Linux
- https://git.kernel.org/stable/c/c1bc2870f14e526a01897e14c747a0a0ca125231CVE reference, Linux
- https://git.kernel.org/stable/c/9407454a9b18bbeff216e8ecde87ffb2171e9ccfCVE reference, Linux
- https://git.kernel.org/stable/c/e02d8d5b1602689b98d9b91550a11b9b57baedbeCVE reference, Linux
- https://git.kernel.org/stable/c/f816b9829b19394d318e01953aa3b2721bca040dCVE reference, Linux
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Double Free
Double Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.