{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89527","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.719Z","datePublished":"2026-09-11T19:44:07.785Z","dateUpdated":"2026-09-11T19:44:07.785Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-11T19:44:07.785Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsvcrdma: Use svc_xprt_put to free listener on create failure\n\nsvc_rdma_create() calls kfree(cma_xprt) when\nsvc_rdma_create_listen_id() fails. svc_xprt_init() has already\nacquired a net namespace reference via get_net_track(); kfree\nbypasses svc_xprt_free() which releases it.\n\nReplace the kfree() with svc_xprt_put() so the kref_init birth\nreference drops to zero and svc_xprt_free() dispatches\nsvc_rdma_free() to clean up properly. sc_cm_id is still NULL\nat that point; the preceding patch added the necessary NULL\nguard in svc_rdma_free().\n\nsvc_xprt_free() also drops the module reference via\nmodule_put(), but the caller _svc_xprt_create() does the same\non xpo_create failure, double-putting the single\ntry_module_get() it acquired. Take a compensating\n__module_get() before the svc_xprt_put() to keep the count\nbalanced, matching the convention in svc_rdma_accept()'s error\npath."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sunrpc/xprtrdma/svc_rdma_transport.c"],"versions":[{"version":"4fb8518bdac8e85f6580ea3f586adf396cd472bc","lessThan":"ac1dd6002f758ab7dd3e737757e5a1bb1c0b38d6","status":"affected","versionType":"git"},{"version":"4fb8518bdac8e85f6580ea3f586adf396cd472bc","lessThan":"e346ef7bcb137f50c49f969330ab7dcf64ea1654","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/sunrpc/xprtrdma/svc_rdma_transport.c"],"versions":[{"version":"2.6.37","status":"affected"},{"version":"0","lessThan":"2.6.37","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":"2.6.37","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ac1dd6002f758ab7dd3e737757e5a1bb1c0b38d6"},{"url":"https://git.kernel.org/stable/c/e346ef7bcb137f50c49f969330ab7dcf64ea1654"}],"title":"svcrdma: Use svc_xprt_put to free listener on create failure","x_generator":{"engine":"bippy-1.2.0"}}}}