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CVE-2026-80880 (GCVE-0-2026-80880)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:49 – Updated: 2026-09-04 16:49
VLAI
Title
IB/mlx5: Properly support implicit ODP rereg_mr
Summary
In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Properly support implicit ODP rereg_mr Due to all the child mkeys in the implicit ODP configuration we cannot change anything in place for the parent mkey. Instead the whole thing needs to be rebuilt if any change is requested. If the user does not specify a translation then force the implicit values which will then fall through the logic into mlx5_ib_reg_user_mr() to allocate a completely new MR. Since implicit children were also touching the mr->pd, this removes another case where the access was racy.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ef3642c4f54d3493c92c71faf46139b2473bc532 , < cbc9982c8573fb9e35040063aa78c8ebe768a1ff (git)
Affected: ef3642c4f54d3493c92c71faf46139b2473bc532 , < ee914ef54a7e707453ecb43eb30fb0a5c6dd0d69 (git)
Affected: ef3642c4f54d3493c92c71faf46139b2473bc532 , < 94f7e50eb6b2ce7fbd9aeac1db22460d2013a3fb (git)
Affected: ef3642c4f54d3493c92c71faf46139b2473bc532 , < eb7cb798e563b3f3b3baeb9cc6f7455764267e50 (git)
Affected: ef3642c4f54d3493c92c71faf46139b2473bc532 , < d4f84bfa089fe71f775d25beb29303e844494c25 (git)
Affected: ef3642c4f54d3493c92c71faf46139b2473bc532 , < 5d02b9a2efd11d28d2a8feac7769686b1b871d9c (git)
Affected: ef3642c4f54d3493c92c71faf46139b2473bc532 , < ee7a8335069150c3f1893a697ab30bbeca00d796 (git)
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Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-08T00:08:23Z",
      "cve": "CVE-2026-80880",
      "id": "CVE-2026-80880",
      "initial_release_date": "2026-09-05T00:25:24Z",
      "product_status:known_affected": "198",
      "product_status:known_not_affected": "155",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80880",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80880.json",
      "version": "5"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.