{"api_version":"1","generated_at":"2026-08-22T21:52:59+00:00","cve":"CVE-2026-74725","urls":{"html":"https://cve.report/CVE-2026-74725","api":"https://cve.report/api/cve/CVE-2026-74725.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74725","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74725"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:47","updated_at":"2026-08-22 16:16:47"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e506e704b74748ffd0e1c92a7453ca2a959f832b","name":"https://git.kernel.org/stable/c/e506e704b74748ffd0e1c92a7453ca2a959f832b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ec680ea4ba1bca92a767fb7e7869758bfdd886e3","name":"https://git.kernel.org/stable/c/ec680ea4ba1bca92a767fb7e7869758bfdd886e3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8619865f34fb3b130b567855382a5c4aadd522b9","name":"https://git.kernel.org/stable/c/8619865f34fb3b130b567855382a5c4aadd522b9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4f3464fc6c1f26afc504fd525c574f2bc14c9d42","name":"https://git.kernel.org/stable/c/4f3464fc6c1f26afc504fd525c574f2bc14c9d42","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74725","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74725","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 937317c7c1097aa878a5000e3aab616eb5c590c0 8619865f34fb3b130b567855382a5c4aadd522b9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 937317c7c1097aa878a5000e3aab616eb5c590c0 e506e704b74748ffd0e1c92a7453ca2a959f832b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 937317c7c1097aa878a5000e3aab616eb5c590c0 4f3464fc6c1f26afc504fd525c574f2bc14c9d42 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 937317c7c1097aa878a5000e3aab616eb5c590c0 ec680ea4ba1bca92a767fb7e7869758bfdd886e3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/cisco/enic/enic_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8619865f34fb3b130b567855382a5c4aadd522b9","status":"affected","version":"937317c7c1097aa878a5000e3aab616eb5c590c0","versionType":"git"},{"lessThan":"e506e704b74748ffd0e1c92a7453ca2a959f832b","status":"affected","version":"937317c7c1097aa878a5000e3aab616eb5c590c0","versionType":"git"},{"lessThan":"4f3464fc6c1f26afc504fd525c574f2bc14c9d42","status":"affected","version":"937317c7c1097aa878a5000e3aab616eb5c590c0","versionType":"git"},{"lessThan":"ec680ea4ba1bca92a767fb7e7869758bfdd886e3","status":"affected","version":"937317c7c1097aa878a5000e3aab616eb5c590c0","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/cisco/enic/enic_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.4"},{"lessThan":"4.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.104","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"4.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:33:16.460Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8619865f34fb3b130b567855382a5c4aadd522b9"},{"url":"https://git.kernel.org/stable/c/e506e704b74748ffd0e1c92a7453ca2a959f832b"},{"url":"https://git.kernel.org/stable/c/4f3464fc6c1f26afc504fd525c574f2bc14c9d42"},{"url":"https://git.kernel.org/stable/c/ec680ea4ba1bca92a767fb7e7869758bfdd886e3"}],"title":"enic: fix tx_hang_reset use-after-free on device removal","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74725","datePublished":"2026-08-22T15:33:16.460Z","dateReserved":"2026-08-15T05:44:03.929Z","dateUpdated":"2026-08-22T15:33:16.460Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:47","lastModifiedDate":"2026-08-22 16:16:47","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74725","Ordinal":"1","Title":"enic: fix tx_hang_reset use-after-free on device removal","CVE":"CVE-2026-74725","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74725","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"enic: fix tx_hang_reset use-after-free on device removal"}]}}}