{"id":"CVE-2026-74725","revision":"a406cf4754af470c9417450a784b4082","records":[{"revision":"a406cf4754af470c9417450a784b4082","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74725","aliases":[],"title":"enic: fix tx_hang_reset use-after-free on device removal","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nenic: fix tx_hang_reset use-after-free on device removal\n\nenic_remove() cancels the reset and change_mtu_work items but does not\ncancel tx_hang_reset. A TX timeout that fires while the device is being\nremoved can schedule enic_tx_hang_reset() so that it runs after\nfree_netdev(), resulting in a use-after-free.\n\ncancel_work_sync() alone is not sufficient here: the still-live watchdog\nand notify paths can re-schedule these work items in the window between\nthe cancel and unregister_netdev(). Use disable_work_sync(), which\ncancels the work and blocks any subsequent schedule_work() from\nrequeuing it, and apply it to the reset and change_mtu_work items as\nwell so the same requeue race is closed for all teardown work.","state":0,"publishedAt":"2026-08-22T15:33:16.46+00:00","modifiedAt":"2026-10-16T19:16:12.099+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/cisco/enic/enic_main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"937317c7c1097aa878a5000e3aab616eb5c590c0\",\n                            \"lessThan\": \"8619865f34fb3b130b567855382a5c4aadd522b9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"937317c7c1097aa878a5000e3aab616eb5c590c0\",\n                            \"lessThan\": \"e506e704b74748ffd0e1c92a7453ca2a959f832b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"937317c7c1097aa878a5000e3aab616eb5c590c0\",\n                            \"lessThan\": \"4f3464fc6c1f26afc504fd525c574f2bc14c9d42\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"937317c7c1097aa878a5000e3aab616eb5c590c0\",\n                            \"lessThan\": \"ec680ea4ba1bca92a767fb7e7869758bfdd886e3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/cisco/enic/enic_main.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.4\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.104\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.45\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.9\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/8619865f34fb3b130b567855382a5c4aadd522b9","https://git.kernel.org/stable/c/e506e704b74748ffd0e1c92a7453ca2a959f832b","https://git.kernel.org/stable/c/4f3464fc6c1f26afc504fd525c574f2bc14c9d42","https://git.kernel.org/stable/c/ec680ea4ba1bca92a767fb7e7869758bfdd886e3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74725","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74725","identifiers":["CVE-2026-74725"]},"retained":false,"historicalAffected":[]}],"coverage":[]}