{
  "cveId": "CVE-2025-21635",
  "url": "https://patchblox.com/security/cve/CVE-2025-21635",
  "summary": "CVE-2025-21635 is fixed in 27 products on 1 platform, first by DEBIAN-CVE-2025-21635, released January 19, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "rds: sysctl: rds_tcp_{rcv,snd}buf: avoid using current-\u003Ensproxy",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  rds: sysctl: rds_tcp_{rcv,snd}buf: avoid using current-\u003Ensproxy  As mentioned in a previous commit of this series, using the \u0027net\u0027 structure via \u0027current\u0027 is not recommended for different reasons:  - Inconsistency: getting info from the reader\u0027s/writer\u0027s netns vs only   from the opener\u0027s netns.  - current-\u003Ensproxy can be NULL in some cases, resulting in an \u0027Oops\u0027   (null-ptr-deref), e.g. when the current task is exiting, as spotted by   syzbot [1] using acct(2).  The per-netns structure can be obtained from the table-\u003Edata using container_of(), then the \u0027net\u0027 one can be retrieved from the listen socket (if available).",
  "published": "2025-01-19T11:15:09Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "cwe": "NULL Pointer Dereference",
  "epss": 0.00254,
  "epssPercentile": 0.16992,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21635",
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