CVE-2026-98957

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98957", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.382Z", "datePublished": "2026-10-23T12:19:22.400Z", "dateUpdated": "2026-10-23T12:19:22.400Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-23T12:19:22.400Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mt7915/init.c"], "versions": [{"version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "0281dac1e213329b053fb02e612de7f1477a52d7", "status": "affected", "versionType": "git"}, {"version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "0f9afe238eeb79829f0f92f376ba3a20781caccd", "status": "affected", "versionType": "git"}, {"version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "7199ee4b47de0b61fa6455a1587c5ab645ebe262", "status": "affected", "versionType": "git"}, {"version": "e57b7901469fc0b021930b83a8094baaf3d81b09", "lessThan": "916c484d29d82f45c281da2786fcd6a1284430ce", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mt7915/init.c"], "versions": [{"version": "5.8", "status": "affected"}, {"version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.11", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.2.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.3"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-98957", "lastModified": "2026-10-23T13:17:17.007", "metrics": {}, "published": "2026-10-23T13:17:17.007", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0281dac1e213329b053fb02e612de7f1477a52d7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0f9afe238eeb79829f0f92f376ba3a20781caccd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7199ee4b47de0b61fa6455a1587c5ab645ebe262"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/916c484d29d82f45c281da2786fcd6a1284430ce"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: mt76: mt7915: disable rx napi when removing device", "id": "2559642", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559642"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-459", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mt76: mt7915: disable rx napi when removing device\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.\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.\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.\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.", "A flaw was found in the Linux kernel's MT7915 wireless driver. The driver fails to properly disable receive network polling before freeing device resources during hardware teardown or module unloading. This flaw may allow a local privileged user to induce kernel warnings and cause system instability, resulting in a denial of service (DoS)."], "name": "CVE-2026-98957", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98957\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98957\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98957.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e57b7901469fc0b021930b83a8094baaf3d81b09,0281dac1e213329b053fb02e612de7f1477a52d7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e57b7901469fc0b021930b83a8094baaf3d81b09,0f9afe238eeb79829f0f92f376ba3a20781caccd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e57b7901469fc0b021930b83a8094baaf3d81b09,7199ee4b47de0b61fa6455a1587c5ab645ebe262)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e57b7901469fc0b021930b83a8094baaf3d81b09,916c484d29d82f45c281da2786fcd6a1284430ce)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e57b7901469fc0b021930b83a8094baaf3d81b09,0281dac1e213329b053fb02e612de7f1477a52d7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e57b7901469fc0b021930b83a8094baaf3d81b09,0f9afe238eeb79829f0f92f376ba3a20781caccd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e57b7901469fc0b021930b83a8094baaf3d81b09,7199ee4b47de0b61fa6455a1587c5ab645ebe262)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e57b7901469fc0b021930b83a8094baaf3d81b09,916c484d29d82f45c281da2786fcd6a1284430ce)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.57,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.11,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-23T15:15:14.434184+00:00", "updated": "2026-10-29T20:15:14.763129+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}