{"id":"CVE-2026-64173","title":"tracing: Do not call map->ops->elt_free() if elt_alloc() fails","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Do not call map->ops->elt_free() if elt_alloc() fails\n\nIn paths where tracing_map_elt_alloc() failed to allocate objects,\nthe map->ops->elt_alloc() call was ne…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < 49332e49ad5b20262cc719b03d4123b9362de701","Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < b559a218eece132de0c58d444877b5627cbee524","Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < b427e9f6d81c9341cba23ef92f860f99f830d91d","Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < f383cff9fb382139980bac1bcd3f3f5d59f68435","Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < 1a150947f8480262a46c860f1acb9c6597ca7097","Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < 798183376d9d3e278a270ea0e75a5769c8f145d9","Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < b6723339736320b2e1784258ad4490cec7aac11a","Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < 8f0f5c4fb9df0e19a341e0c6ed8dc4fda9124f03","Linux 4.17"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:31:06.202987Z"},"published":"2026-07-19","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:34:27.868Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64173","references":[{"url":"https://git.kernel.org/stable/c/49332e49ad5b20262cc719b03d4123b9362de701"},{"url":"https://git.kernel.org/stable/c/b559a218eece132de0c58d444877b5627cbee524"},{"url":"https://git.kernel.org/stable/c/b427e9f6d81c9341cba23ef92f860f99f830d91d"},{"url":"https://git.kernel.org/stable/c/f383cff9fb382139980bac1bcd3f3f5d59f68435"},{"url":"https://git.kernel.org/stable/c/1a150947f8480262a46c860f1acb9c6597ca7097"},{"url":"https://git.kernel.org/stable/c/798183376d9d3e278a270ea0e75a5769c8f145d9"},{"url":"https://git.kernel.org/stable/c/b6723339736320b2e1784258ad4490cec7aac11a"},{"url":"https://git.kernel.org/stable/c/8f0f5c4fb9df0e19a341e0c6ed8dc4fda9124f03"}],"tags":["cve.org"],"epss":0.00114,"epssPercentile":0.01496,"ingestedAt":"2026-11-06T16:57:43.230Z","slug":"CVE-2026-64173","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Do not call map->ops->elt_free() if elt_alloc() fails\n\nIn paths where tracing_map_elt_alloc() failed to allocate objects,\nthe map->ops->elt_alloc() call was never successful. In this case,\nmap->ops->elt_free() should not be called.\n\n## Affected\n\n- `Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < 49332e49ad5b20262cc719b03d4123b9362de701`\n- `Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < b559a218eece132de0c58d444877b5627cbee524`\n- `Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < b427e9f6d81c9341cba23ef92f860f99f830d91d`\n- `Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < f383cff9fb382139980bac1bcd3f3f5d59f68435`\n- `Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < 1a150947f8480262a46c860f1acb9c6597ca7097`\n- `Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < 798183376d9d3e278a270ea0e75a5769c8f145d9`\n- `Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < b6723339736320b2e1784258ad4490cec7aac11a`\n- `Linux >= 2734b629525a9dae5bf217cbf0a9651da93d2108 < 8f0f5c4fb9df0e19a341e0c6ed8dc4fda9124f03`\n- `Linux 4.17`\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":[]}