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CVE Record

CVE-2026-23305: accel/rocket: fix unwinding in error path in rocket_probe

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: fix unwinding in error path in rocket_probe When rocket_core_init() fails (as could be the case with EPROBE_DEFER), we need to properly unwind by decrementing the counter we just incremented and if this is the first core we failed to probe, remove the rocket DRM device with rocket_device_fini() as well. This matches the logic in rocket_remove(). Failing to properly unwind results in out-of-bounds accesses.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2026-23305 is a Linux kernel defect in the accel/rocket driver. If driver initialization fails, cleanup is incomplete, which can lead to out-of-bounds memory access. The public record does not provide CVSS, CWE, impact detail, or evidence of exploitation.

Executive priority

Treat this as a kernel maintenance item requiring vendor patch tracking, not an emergency unless your fleet uses affected kernels with the accel/rocket driver. Urgency should rise if a vendor advisory assigns higher severity or confirms exploitation.

Technical view

The bug is in rocket_probe error unwinding. When rocket_core_init() fails, including EPROBE_DEFER, the driver fails to decrement a counter and may fail to remove the rocket DRM device, diverging from rocket_remove logic and causing out-of-bounds accesses.

Likely exposure

Exposure appears limited to Linux systems using affected kernel builds with the accel/rocket driver path present. The source bundle lists Linux as affected, including versions around 6.18, 6.18.17, 6.19.7, and 7.0, but does not clarify downstream distribution status.

Exploitation context

The CVE is not listed as KEV in the provided bundle, and no cited source states active exploitation. The record describes a kernel error-path memory safety issue, but does not provide attacker prerequisites, privilege requirements, or practical exploitability.

Researcher notes

Evidence is limited to the CVE description and kernel stable references. The record identifies an out-of-bounds access caused by incomplete unwind logic, but lacks CVSS, CWE, exploitability analysis, attacker model, and downstream distro mapping.

Mitigation direction

  • Apply Linux vendor kernel updates containing the referenced stable commits.
  • Prioritize systems that include or load the accel/rocket driver.
  • Check distribution advisories for backported fixes and supported package versions.
  • If updates are unavailable, follow vendor guidance for temporary risk reduction.

Validation and detection

  • Inventory deployed Linux kernel versions and map them to CVE-2026-23305 status.
  • Confirm whether the accel/rocket driver is present in affected environments.
  • Verify installed kernels include the referenced stable fixes or vendor backports.
  • Track vendor advisories for corrected package versions and residual limitations.
Prepared
Confidence
medium
Sources
5

Public sources used

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.

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CVE-2026-23305 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
3Timeline events
0ADP providers
4Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux0810d5ad88a18f1e6d549853a388ad0316f74e36, 0810d5ad88a18f1e6d549853a388ad0316f74e36, 0810d5ad88a18f1e6d549853a388ad0316f74e36unaffected
LinuxLinux6.18, 0, 6.18.17, 6.19.7, 7.0affected
Weakness

CWE details

No CWE listed

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