CVE-2026-46053

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

May 27, 2026

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Jun 4, 2026
No patch confirmed yet.
generic

net: rds: fix MR cleanup on copy error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ec55a86f7fba7d9111df94b9c11a4755ed492995
generic

net: rds: fix MR cleanup on copy error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d95cea9298be1ba8876e3f156be96d3a492085ca
generic

net: rds: fix MR cleanup on copy error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b3cb8cae530b2727d8245684148bb49425f6765c
generic

net: rds: fix MR cleanup on copy error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/91a44b406bc1f9e1c5da0cb7d0d5991b43b79147
generic

net: rds: fix MR cleanup on copy error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8fdbb6262a4a3ed44a0830a7793903b54bb27bdc
generic

net: rds: fix MR cleanup on copy error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8141a2dc70080eda1aedc0389ed2db2b292af5bd
generic

net: rds: fix MR cleanup on copy error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/106dc689206610cfa2098f593fdd1e020c997835
generic

net: rds: fix MR cleanup on copy error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/033370ffb3c9c0264d19f8ba9ef769523266589a

Vendor Advisories for CVE-2026-46053(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.186.196~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-25ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-136.136.2~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-25ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.86-1~bpo12+1 (19 versions)6.12.86-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.4-1~bpo13+1 (131 versions)7.0.4-1—

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 87× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 273 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:12 UTCEPSS rescore
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-08-30 19:17 UTCEPSS rescore
  5. 2026-08-30 01:22 UTCEPSS rescore
  6. 2026-08-28 21:41 UTCEPSS rescore
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-25 05:24 UTCEG score recompute
  11. 2026-08-25 05:24 UTCVendor advisory
  12. 2026-08-25 05:23 UTCGHSA enrichment
  13. 2026-08-23 15:10 UTCEG score recompute
  14. 2026-08-23 15:10 UTCVendor advisory
  15. 2026-08-23 15:09 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-21 20:39 UTCVendor advisory
  19. 2026-08-21 20:39 UTCGHSA enrichment
  20. 2026-08-21 01:39 UTCEG score recompute
  21. 2026-08-21 01:39 UTCVendor advisory
  22. 2026-08-21 01:38 UTCGHSA enrichment
  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-20 11:25 UTCEG score recompute
  25. 2026-08-20 11:25 UTCVendor advisory
Show 75 more
  1. 2026-08-20 11:24 UTCGHSA enrichment
  2. 2026-08-19 17:04 UTCEPSS rescore
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-17 09:18 UTCVendor advisory
  6. 2026-08-17 09:18 UTCGHSA enrichment
  7. 2026-08-16 16:23 UTCEG score recompute
  8. 2026-08-16 16:23 UTCVendor advisory
  9. 2026-08-16 16:23 UTCGHSA enrichment
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 02:51 UTCEG score recompute
  12. 2026-08-16 02:51 UTCVendor advisory
  13. 2026-08-16 02:51 UTCGHSA enrichment
  14. 2026-08-16 02:14 UTCEPSS rescore
  15. 2026-08-15 03:08 UTCEG score recompute
  16. 2026-08-15 03:08 UTCVendor advisory
  17. 2026-08-15 03:08 UTCGHSA enrichment
  18. 2026-08-15 01:30 UTCEPSS rescore
  19. 2026-08-14 14:18 UTCVendor advisory
  20. 2026-08-14 14:18 UTCGHSA enrichment
  21. 2026-08-14 01:28 UTCEG score recompute
  22. 2026-08-14 01:28 UTCVendor advisory
  23. 2026-08-14 01:28 UTCGHSA enrichment
  24. 2026-08-13 22:00 UTCEPSS rescore
  25. 2026-08-13 04:36 UTCVendor advisory
  26. 2026-08-13 04:36 UTCGHSA enrichment
  27. 2026-08-12 15:46 UTCEG score recompute
  28. 2026-08-12 15:46 UTCVendor advisory
  29. 2026-08-12 15:46 UTCGHSA enrichment
  30. 2026-08-12 13:51 UTCEPSS rescore
  31. 2026-08-12 02:37 UTCVendor advisory
  32. 2026-08-12 02:37 UTCGHSA enrichment
  33. 2026-08-11 13:47 UTCEG score recompute
  34. 2026-08-11 13:47 UTCVendor advisory
  35. 2026-08-11 13:47 UTCGHSA enrichment
  36. 2026-08-11 00:57 UTCEG score recompute
  37. 2026-08-11 00:57 UTCVendor advisory
  38. 2026-08-11 00:57 UTCGHSA enrichment
  39. 2026-08-11 00:00 UTCEPSS rescore
  40. 2026-08-10 12:08 UTCVendor advisory
  41. 2026-08-10 12:08 UTCGHSA enrichment
  42. 2026-08-09 23:11 UTCEG score recompute
  43. 2026-08-09 23:11 UTCVendor advisory
  44. 2026-08-09 23:11 UTCGHSA enrichment
  45. 2026-08-09 13:46 UTCEPSS rescore
  46. 2026-08-09 10:21 UTCVendor advisory
  47. 2026-08-09 10:21 UTCGHSA enrichment
  48. 2026-08-08 21:29 UTCEG score recompute
  49. 2026-08-08 21:29 UTCVendor advisory
  50. 2026-08-08 21:29 UTCGHSA enrichment
  51. 2026-08-08 16:37 UTCEPSS rescore
  52. 2026-08-08 05:54 UTCVendor advisory
  53. 2026-08-08 05:54 UTCGHSA enrichment
  54. 2026-08-07 17:04 UTCEG score recompute
  55. 2026-08-07 17:04 UTCVendor advisory
  56. 2026-08-07 17:04 UTCGHSA enrichment
  57. 2026-08-07 04:14 UTCVendor advisory
  58. 2026-08-07 04:14 UTCGHSA enrichment
  59. 2026-08-06 15:23 UTCEG score recompute
  60. 2026-08-06 15:23 UTCVendor advisory
  61. 2026-08-06 15:23 UTCGHSA enrichment
  62. 2026-08-06 13:47 UTCEPSS rescore
  63. 2026-08-06 02:32 UTCEG score recompute
  64. 2026-08-06 02:32 UTCVendor advisory
  65. 2026-08-06 02:32 UTCGHSA enrichment
  66. 2026-08-05 19:17 UTCEPSS rescore
  67. 2026-08-05 13:42 UTCEG score recompute
  68. 2026-08-05 13:42 UTCVendor advisory
  69. 2026-08-05 13:42 UTCGHSA enrichment
  70. 2026-08-04 15:10 UTCEPSS rescore
  71. 2026-08-04 10:39 UTCEPSS rescore
  72. 2026-08-04 05:20 UTCVendor advisory
  73. 2026-08-04 05:20 UTCGHSA enrichment
  74. 2026-08-03 16:27 UTCEG score recompute
  75. 2026-08-03 16:27 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-46053?
CVE-2026-46053 is a high vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: net: rds: fix MR cleanup on copy error rdsrdmamap() 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…
When was CVE-2026-46053 disclosed?
CVE-2026-46053 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46053 actively exploited?
CVE-2026-46053 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.1% of all scored CVEs.
What is the CVSS score of CVE-2026-46053?
CVE-2026-46053 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-46053?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46053, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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