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Back to active CVEs
High · CVSS 7.8CVE-2026-46053

net: rds: fix MR cleanup on copy errorCVE-2026-46053

Answer in brief

CVE-2026-46053 records a High severity (CVSS 7.8) vulnerability in net: rds: fix MR cleanup on copy error. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 27, 2026Updated Aug 5, 2026Source checked Nov 5, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 5, 2026
References
8 linked sources
Open source record

Key facts

Risk
High · CVSS 7.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=0d4597c8c5abdeeaf50774066c16683f30184dc8 <91a44b406bc1f9e1c5da0cb7d0d5991b43b79147 || >=0d4597c8c5abdeeaf50774066c16683f30184dc8 <106dc689206610cfa2098f593fdd1e020c997835 || >=0d4597c8c5abdeeaf50774066c16683f30184dc8 <ec55a86f7fba7d9111df94b9c11a4755ed492995 || >=0d4597c8c5abdeeaf50774066c16683f30184dc8 <8fdbb6262a4a3ed44a0830a7793903b54bb27bdc || >=0d4597c8c5abdeeaf50774066c16683f30184dc8 <d95cea9298be1ba8876e3f156be96d3a492085ca || >=0d4597c8c5abdeeaf50774066c16683f30184dc8 <033370ffb3c9c0264d19f8ba9ef769523266589a || >=0d4597c8c5abdeeaf50774066c16683f30184dc8 <b3cb8cae530b2727d8245684148bb49425f6765c || >=0d4597c8c5abdeeaf50774066c16683f30184dc8 <8141a2dc70080eda1aedc0389ed2db2b292af5bd91a44b406bc1f9e1c5da0cb7d0d5991b43b79147, 106dc689206610cfa2098f593fdd1e020c997835, ec55a86f7fba7d9111df94b9c11a4755ed492995, 8fdbb6262a4a3ed44a0830a7793903b54bb27bdc, d95cea9298be1ba8876e3f156be96d3a492085ca, 033370ffb3c9c0264d19f8ba9ef769523266589a, b3cb8cae530b2727d8245684148bb49425f6765c, 8141a2dc70080eda1aedc0389ed2db2b292af5bd
Linux/Linuxgeneric5.6Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 91a44b406bc1f9e1c5da0cb7d0d5991b43b79147 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: net: rds: fix MR cleanup on copy error __rds_rdma_map() hands sg/pages ownership to the transport after get_mr() succeeds. If copying the generated cookie back to user space fails after that point, the error path must not free those resources again before dropping the MR reference. Remove the duplicate unpin/free from the put_user() failure branch so that MR teardown is handled only through the existing final cleanup path.

Quoted source text, attributed separately from HOL analysis.