CVE-2026-46053

HIGH 7.8

net: rds: fix MR cleanup on copy error

CVSS Score

7.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	linux
Product	linux
Ecosystems	Linux Kernel
Industries	Technology
Published	May 27, 2026
Last Updated	Jun 1, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Linux / Linux

0d4597c8c5abdeeaf50774066c16683f30184dc8 < 91a44b406bc1f9e1c5da0cb7d0d5991b43b79147 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 106dc689206610cfa2098f593fdd1e020c997835 0d4597c8c5abdeeaf50774066c16683f30184dc8 < ec55a86f7fba7d9111df94b9c11a4755ed492995 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 8fdbb6262a4a3ed44a0830a7793903b54bb27bdc 0d4597c8c5abdeeaf50774066c16683f30184dc8 < d95cea9298be1ba8876e3f156be96d3a492085ca 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 033370ffb3c9c0264d19f8ba9ef769523266589a 0d4597c8c5abdeeaf50774066c16683f30184dc8 < b3cb8cae530b2727d8245684148bb49425f6765c 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 8141a2dc70080eda1aedc0389ed2db2b292af5bd

Linux / Linux

5.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗