CVE-2026-89505
CVE CVE-2026-89505EUVD EUVD-2026-76411Published 2026-09-11T19:43:52.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Guard legacy bundles without method_elm The legacy write() path dispatches through a uverbs_api_write_method, but the uverbs_attr_bundle passed to provider code does not have an ioctl method element. If malformed provider input causes the common uverbs validation code to emit an error message, uverbs_get_handler_fn() dereferences the uninitialized method_elm pointer. Initialize method_elm explicitly for legacy bundles and make uverbs_get_handler_fn() return NULL when no ioctl method is present. The legacy dispatcher continues to use its local write method, while the ioctl path continues to use the registered ioctl handler.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 0; 7122ff96068a03595bde2fbafaca82ca2ed8084e <edae84e5461749ed9adf9fcf5c6e075381040ac3; 7.1; patch: 7.3-rc1; patch: 7.2.4; 7122ff96068a03595bde2fbafaca82ca2ed8084e <60a42d510113f46de47e86a84bf5758597644487
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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