RDMA/erdma: Fix refcount leak in erdma_mmap

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: Fix refcount leak in erdma_mmap rdma_user_mmap_entry_get() take reference, we should release it when not need anymore, add the missing rdma_user_mmap_entry_put() in the error path to fix it.

Scores

No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.

EPSS (exploitation in 30 days)

0.20% · top 90% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.

Affected products

• Linux · Linux

  • affected 155055771704f8cbb5c176a4309b7dc30a50450c – < 8372207b009d6abdd60bb05624640bd86386599f
  • affected 155055771704f8cbb5c176a4309b7dc30a50450c – < 410f0f46ffca4d0102470c1e0c747ecfece4204c
  • affected 155055771704f8cbb5c176a4309b7dc30a50450c – < ee84146c05ad2316b9a7222d0ec4413e0bf30eeb

• Linux · Linux

  • affected 6.0
  • unaffected < 6.0
  • unaffected 6.1.16 – ≤ 6.1.*
  • unaffected 6.2.3 – ≤ 6.2.*
  • unaffected 6.3 – ≤ *

References (3)

• https://git.kernel.org/stable/c/8372207b009d6abdd60bb05624640bd86386599f (opens in a new tab)
• https://git.kernel.org/stable/c/410f0f46ffca4d0102470c1e0c747ecfece4204c (opens in a new tab)
• https://git.kernel.org/stable/c/ee84146c05ad2316b9a7222d0ec4413e0bf30eeb (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)
• 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

[![CVE-2022-50874](https://trackcve.app/badge/CVE-2022-50874.svg)](https://trackcve.app/cve/CVE-2022-50874)

Record last updated 11 May 2026, 19:26 UTC.