{"id":"CVE-2025-71084","title":"RDMA/cm: Fix leaking the multicast GID table reference","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cm: Fix leaking the multicast GID table reference\n\nIf the CM ID is destroyed while the CM event for multicast creating is\nstill queued the cancel_work_sync() will …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 60d613b39e8d0c9f3b526e9c96445422b4562d76 < d5ce588a9552878859a4d44b70b724216c188a5f","Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < abf38398724ecc888f62c678d288da40d11878af","Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < ab668a58c4a2ccb6d54add7a76f2f955d15d0196","Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < c0acdee513239e1d6e1b490f56be0e6837dfd162","Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < 5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3","Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < 3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5","Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < 57f3cb6c84159d12ba343574df2115fb18dd83ca","Linux a3262b3884dd67b4c5632ce7cdf9cff9d1a575d4","Linux >= 5.10.20 < 5.10.248","Linux >= 5.11.3 < 5.12","Linux 5.12"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-10T20:42:17.315950Z"},"published":"2026-01-13","updated":"2026-10-19","sourceUpdated":"2026-10-19T18:15:11.601Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71084","references":[{"url":"https://git.kernel.org/stable/c/d5ce588a9552878859a4d44b70b724216c188a5f"},{"url":"https://git.kernel.org/stable/c/abf38398724ecc888f62c678d288da40d11878af"},{"url":"https://git.kernel.org/stable/c/ab668a58c4a2ccb6d54add7a76f2f955d15d0196"},{"url":"https://git.kernel.org/stable/c/c0acdee513239e1d6e1b490f56be0e6837dfd162"},{"url":"https://git.kernel.org/stable/c/5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3"},{"url":"https://git.kernel.org/stable/c/3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5"},{"url":"https://git.kernel.org/stable/c/57f3cb6c84159d12ba343574df2115fb18dd83ca"}],"tags":["cve.org"],"epss":0.00137,"epssPercentile":0.02763,"ingestedAt":"2026-10-19T18:35:50.137Z","slug":"CVE-2025-71084","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cm: Fix leaking the multicast GID table reference\n\nIf the CM ID is destroyed while the CM event for multicast creating is\nstill queued the cancel_work_sync() will prevent the work from running\nwhich also prevents destroying the ah_attr. This leaks a refcount and\ntriggers a WARN:\n\n   GID entry ref leak for dev syz1 index 2 ref=573\n   WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline]\n   WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886\n\nDestroy the ah_attr after canceling the work, it is safe to call this\ntwice.\n\n## Affected\n\n- `Linux >= 60d613b39e8d0c9f3b526e9c96445422b4562d76 < d5ce588a9552878859a4d44b70b724216c188a5f`\n- `Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < abf38398724ecc888f62c678d288da40d11878af`\n- `Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < ab668a58c4a2ccb6d54add7a76f2f955d15d0196`\n- `Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < c0acdee513239e1d6e1b490f56be0e6837dfd162`\n- `Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < 5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3`\n- `Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < 3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5`\n- `Linux >= fe454dc31e84f8c14cb8942fcb61666c9f40745b < 57f3cb6c84159d12ba343574df2115fb18dd83ca`\n- `Linux a3262b3884dd67b4c5632ce7cdf9cff9d1a575d4`\n- `Linux >= 5.10.20 < 5.10.248`\n- `Linux >= 5.11.3 < 5.12`\n- `Linux 5.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}