CVE-2026-46053

HighCVSS 7.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

VendorProductVersions
LinuxLinux>= 0d4597c8c5abdeeaf50774066c16683f30184dc8, < 91a44b406bc1f9e1c5da0cb7d0d5991b43b79147; >= 0d4597c8c5abdeeaf50774066c16683f30184dc8, < 106dc689206610cfa2098f593fdd1e020c997835; >= 0d4597c8c5abdeeaf50774066c16683f30184dc8, < ec55a86f7fba7d9111df94b9c11a4755ed492995; >= 0d4597c8c5abdeeaf50774066c16683f30184dc8, < 8fdbb6262a4a3ed44a0830a7793903b54bb27bdc; >= 0d4597c8c5abdeeaf50774066c16683f30184dc8, < d95cea9298be1ba8876e3f156be96d3a492085ca; >= 0d4597c8c5abdeeaf50774066c16683f30184dc8, < 033370ffb3c9c0264d19f8ba9ef769523266589a; >= 0d4597c8c5abdeeaf50774066c16683f30184dc8, < b3cb8cae530b2727d8245684148bb49425f6765c; >= 0d4597c8c5abdeeaf50774066c16683f30184dc8, < 8141a2dc70080eda1aedc0389ed2db2b292af5bd
LinuxLinux5.6

References

Timeline

Published
May 27, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-46053: High severity, CVSS 7.8 | Vulnix