{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89505","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.716Z","datePublished":"2026-09-11T19:43:52.690Z","dateUpdated":"2026-09-11T19:43:52.690Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-11T19:43:52.690Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/uverbs: Guard legacy bundles without method_elm\n\nThe legacy write() path dispatches through a uverbs_api_write_method, but\nthe uverbs_attr_bundle passed to provider code does not have an ioctl\nmethod element. If malformed provider input causes the common uverbs\nvalidation code to emit an error message, uverbs_get_handler_fn()\ndereferences the uninitialized method_elm pointer.\n\nInitialize method_elm explicitly for legacy bundles and make\nuverbs_get_handler_fn() return NULL when no ioctl method is present. The\nlegacy dispatcher continues to use its local write method, while the ioctl\npath continues to use the registered ioctl handler."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/core/ib_core_uverbs.c","drivers/infiniband/core/uverbs_main.c"],"versions":[{"version":"7122ff96068a03595bde2fbafaca82ca2ed8084e","lessThan":"edae84e5461749ed9adf9fcf5c6e075381040ac3","status":"affected","versionType":"git"},{"version":"7122ff96068a03595bde2fbafaca82ca2ed8084e","lessThan":"60a42d510113f46de47e86a84bf5758597644487","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/core/ib_core_uverbs.c","drivers/infiniband/core/uverbs_main.c"],"versions":[{"version":"7.1","status":"affected"},{"version":"0","lessThan":"7.1","status":"unaffected","versionType":"semver"},{"version":"7.2.4","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/edae84e5461749ed9adf9fcf5c6e075381040ac3"},{"url":"https://git.kernel.org/stable/c/60a42d510113f46de47e86a84bf5758597644487"}],"title":"RDMA/uverbs: Guard legacy bundles without method_elm","x_generator":{"engine":"bippy-1.2.0"}}}}