CVE-2026-46053net: rds: fix MR cleanup on copy error
- 7.8HighCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 – < 91a44b406bc1f9e1c5da0cb7d0d5991b43b79147
- affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 – < 106dc689206610cfa2098f593fdd1e020c997835
- affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 – < ec55a86f7fba7d9111df94b9c11a4755ed492995
- affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 – < 8fdbb6262a4a3ed44a0830a7793903b54bb27bdc
- affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 – < d95cea9298be1ba8876e3f156be96d3a492085ca
- affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 – < 033370ffb3c9c0264d19f8ba9ef769523266589a
- affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 – < b3cb8cae530b2727d8245684148bb49425f6765c
- affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 – < 8141a2dc70080eda1aedc0389ed2db2b292af5bd
- affected 5.6
- unaffected < 5.6
- unaffected 5.10.258 – ≤ 5.10.*
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.86 – ≤ 6.12.*
- unaffected 6.18.27 – ≤ 6.18.*
- unaffected 7.0.4 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References8
- https://git.kernel.org/stable/c/91a44b406bc1f9e1c5da0cb7d0d5991b43b79147 (opens in a new tab)
- https://git.kernel.org/stable/c/106dc689206610cfa2098f593fdd1e020c997835 (opens in a new tab)
- https://git.kernel.org/stable/c/ec55a86f7fba7d9111df94b9c11a4755ed492995 (opens in a new tab)
- https://git.kernel.org/stable/c/8fdbb6262a4a3ed44a0830a7793903b54bb27bdc (opens in a new tab)
- https://git.kernel.org/stable/c/d95cea9298be1ba8876e3f156be96d3a492085ca (opens in a new tab)
- https://git.kernel.org/stable/c/033370ffb3c9c0264d19f8ba9ef769523266589a (opens in a new tab)
- https://git.kernel.org/stable/c/b3cb8cae530b2727d8245684148bb49425f6765c (opens in a new tab)
- https://git.kernel.org/stable/c/8141a2dc70080eda1aedc0389ed2db2b292af5bd (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32435 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-46053)Record last updated .