{"api_version":"1","generated_at":"2026-10-24T09:36:02+00:00","cve":"CVE-2026-98957","urls":{"html":"https://cve.report/CVE-2026-98957","api":"https://cve.report/api/cve/CVE-2026-98957.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98957","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98957"},"summary":{"title":"wifi: mt76: mt7915: disable rx napi when removing device","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: disable rx napi when removing device\n\nUnloading the mt7915e module with a MT7916 triggers multiples WARN in\n__netif_napi_del_locked() and in page_pool_disable_direct_recycling()\nbecause the driver does not disable the napi before destroying it.\n\nThis is troublesome since on MT7916 it is required to unload the module\nand reinsert it with a different enable_6ghz parameter to change the\nfrequency.  The system generally becomes unstable after reinserting the\nmodule.\n\nFix it by disabling rx napi inside mt7915e itself, even through napi rx is\nenabled in the mt76 generic code.  Disabling it in the mt76 generic code\nwas previously attempted and reverted because napi was disabled too\nlate and rx handlers could access freed structures.  Note that the tx\nside is enabled and disabled by the mt76 generic code.\n\nIt is disabled in mt7915_stop_hardware() since, unlike\nmt7915_unregister_device(), is it also called in the probe path if an\nerror happens after rx napi is enabled.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-23 13:17:17","updated_at":"2026-10-23 13:17:17"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/916c484d29d82f45c281da2786fcd6a1284430ce","name":"https://git.kernel.org/stable/c/916c484d29d82f45c281da2786fcd6a1284430ce","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0281dac1e213329b053fb02e612de7f1477a52d7","name":"https://git.kernel.org/stable/c/0281dac1e213329b053fb02e612de7f1477a52d7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7199ee4b47de0b61fa6455a1587c5ab645ebe262","name":"https://git.kernel.org/stable/c/7199ee4b47de0b61fa6455a1587c5ab645ebe262","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0f9afe238eeb79829f0f92f376ba3a20781caccd","name":"https://git.kernel.org/stable/c/0f9afe238eeb79829f0f92f376ba3a20781caccd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98957","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98957","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e57b7901469fc0b021930b83a8094baaf3d81b09 0281dac1e213329b053fb02e612de7f1477a52d7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e57b7901469fc0b021930b83a8094baaf3d81b09 0f9afe238eeb79829f0f92f376ba3a20781caccd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e57b7901469fc0b021930b83a8094baaf3d81b09 7199ee4b47de0b61fa6455a1587c5ab645ebe262 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e57b7901469fc0b021930b83a8094baaf3d81b09 916c484d29d82f45c281da2786fcd6a1284430ce git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.8","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.8 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.57 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.11 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * 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/wireless/mediatek/mt76/mt7915/init.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0281dac1e213329b053fb02e612de7f1477a52d7","status":"affected","version":"e57b7901469fc0b021930b83a8094baaf3d81b09","versionType":"git"},{"lessThan":"0f9afe238eeb79829f0f92f376ba3a20781caccd","status":"affected","version":"e57b7901469fc0b021930b83a8094baaf3d81b09","versionType":"git"},{"lessThan":"7199ee4b47de0b61fa6455a1587c5ab645ebe262","status":"affected","version":"e57b7901469fc0b021930b83a8094baaf3d81b09","versionType":"git"},{"lessThan":"916c484d29d82f45c281da2786fcd6a1284430ce","status":"affected","version":"e57b7901469fc0b021930b83a8094baaf3d81b09","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/mediatek/mt76/mt7915/init.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.8"},{"lessThan":"5.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.57","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.57","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.11","versionStartIncluding":"5.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"5.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: disable rx napi when removing device\n\nUnloading the mt7915e module with a MT7916 triggers multiples WARN in\n__netif_napi_del_locked() and in page_pool_disable_direct_recycling()\nbecause the driver does not disable the napi before destroying it.\n\nThis is troublesome since on MT7916 it is required to unload the module\nand reinsert it with a different enable_6ghz parameter to change the\nfrequency.  The system generally becomes unstable after reinserting the\nmodule.\n\nFix it by disabling rx napi inside mt7915e itself, even through napi rx is\nenabled in the mt76 generic code.  Disabling it in the mt76 generic code\nwas previously attempted and reverted because napi was disabled too\nlate and rx handlers could access freed structures.  Note that the tx\nside is enabled and disabled by the mt76 generic code.\n\nIt is disabled in mt7915_stop_hardware() since, unlike\nmt7915_unregister_device(), is it also called in the probe path if an\nerror happens after rx napi is enabled."}],"providerMetadata":{"dateUpdated":"2026-10-23T12:19:22.400Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0281dac1e213329b053fb02e612de7f1477a52d7"},{"url":"https://git.kernel.org/stable/c/0f9afe238eeb79829f0f92f376ba3a20781caccd"},{"url":"https://git.kernel.org/stable/c/7199ee4b47de0b61fa6455a1587c5ab645ebe262"},{"url":"https://git.kernel.org/stable/c/916c484d29d82f45c281da2786fcd6a1284430ce"}],"title":"wifi: mt76: mt7915: disable rx napi when removing device","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98957","datePublished":"2026-10-23T12:19:22.400Z","dateReserved":"2026-09-25T10:25:14.382Z","dateUpdated":"2026-10-23T12:19:22.400Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-23 13:17:17","lastModifiedDate":"2026-10-23 13:17:17","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98957","Ordinal":"1","Title":"wifi: mt76: mt7915: disable rx napi when removing device","CVE":"CVE-2026-98957","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98957","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: disable rx napi when removing device\n\nUnloading the mt7915e module with a MT7916 triggers multiples WARN in\n__netif_napi_del_locked() and in page_pool_disable_direct_recycling()\nbecause the driver does not disable the napi before destroying it.\n\nThis is troublesome since on MT7916 it is required to unload the module\nand reinsert it with a different enable_6ghz parameter to change the\nfrequency.  The system generally becomes unstable after reinserting the\nmodule.\n\nFix it by disabling rx napi inside mt7915e itself, even through napi rx is\nenabled in the mt76 generic code.  Disabling it in the mt76 generic code\nwas previously attempted and reverted because napi was disabled too\nlate and rx handlers could access freed structures.  Note that the tx\nside is enabled and disabled by the mt76 generic code.\n\nIt is disabled in mt7915_stop_hardware() since, unlike\nmt7915_unregister_device(), is it also called in the probe path if an\nerror happens after rx napi is enabled.","Type":"Description","Title":"wifi: mt76: mt7915: disable rx napi when removing device"}]}}}