{"api_version":"1","generated_at":"2026-08-06T21:15:37+00:00","cve":"CVE-2026-64587","urls":{"html":"https://cve.report/CVE-2026-64587","api":"https://cve.report/api/cve/CVE-2026-64587.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64587","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64587"},"summary":{"title":"net: ethernet: arc: emac: quiesce interrupts before requesting IRQ","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: arc: emac: quiesce interrupts before requesting IRQ\n\nNormal RX/TX interrupts are enabled later, in arc_emac_open(), so probe\nshould not see interrupt delivery in the usual case. However, hardware may\nstill present stale or latched interrupt status left by firmware or the\nbootloader.\n\nIf probe later unwinds after devm_request_irq() has installed the handler,\nsuch a stale interrupt can still reach arc_emac_intr() during teardown and\nrace with release of the associated net_device.\n\nAvoid that window by putting the device into a known quiescent state before\nrequesting the IRQ: disable all EMAC interrupt sources and clear any\npending EMAC interrupt status bits. This keeps the change hardware-focused\nand minimal, while preventing spurious IRQ delivery from leftover state.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-06 08:16:33","updated_at":"2026-08-06 08:16:33"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/8f9adb3605e36f75639de529bb3d66e94194a388","name":"https://git.kernel.org/stable/c/8f9adb3605e36f75639de529bb3d66e94194a388","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5f29dd540fe5ea3c826fc8ec759ba488b31f9707","name":"https://git.kernel.org/stable/c/5f29dd540fe5ea3c826fc8ec759ba488b31f9707","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/81431da777924dddaefa5c9b0ca9da4a93f9df96","name":"https://git.kernel.org/stable/c/81431da777924dddaefa5c9b0ca9da4a93f9df96","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2503d08f8a2de618e5c3a8183b250ff4a2e2d52c","name":"https://git.kernel.org/stable/c/2503d08f8a2de618e5c3a8183b250ff4a2e2d52c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/abd338da658d7faa8e26cfefc8f83f0066707564","name":"https://git.kernel.org/stable/c/abd338da658d7faa8e26cfefc8f83f0066707564","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d0f2386f529807826e7404d40a245ee428f89f62","name":"https://git.kernel.org/stable/c/d0f2386f529807826e7404d40a245ee428f89f62","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8efd5dcd31e22a9308b16b107a052fcd568c0a99","name":"https://git.kernel.org/stable/c/8efd5dcd31e22a9308b16b107a052fcd568c0a99","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6fc7449773748c7b904235a09a67054d78ab1172","name":"https://git.kernel.org/stable/c/6fc7449773748c7b904235a09a67054d78ab1172","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64587","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64587","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e4f2379db6c6823c5d4a4c2c912df00c65de51d7 abd338da658d7faa8e26cfefc8f83f0066707564 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e4f2379db6c6823c5d4a4c2c912df00c65de51d7 5f29dd540fe5ea3c826fc8ec759ba488b31f9707 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e4f2379db6c6823c5d4a4c2c912df00c65de51d7 6fc7449773748c7b904235a09a67054d78ab1172 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e4f2379db6c6823c5d4a4c2c912df00c65de51d7 81431da777924dddaefa5c9b0ca9da4a93f9df96 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e4f2379db6c6823c5d4a4c2c912df00c65de51d7 d0f2386f529807826e7404d40a245ee428f89f62 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e4f2379db6c6823c5d4a4c2c912df00c65de51d7 8efd5dcd31e22a9308b16b107a052fcd568c0a99 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e4f2379db6c6823c5d4a4c2c912df00c65de51d7 8f9adb3605e36f75639de529bb3d66e94194a388 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e4f2379db6c6823c5d4a4c2c912df00c65de51d7 2503d08f8a2de618e5c3a8183b250ff4a2e2d52c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.11","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.11 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.253 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.203 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.167 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.130 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.78 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.19 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.9 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * 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/arc/emac_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"abd338da658d7faa8e26cfefc8f83f0066707564","status":"affected","version":"e4f2379db6c6823c5d4a4c2c912df00c65de51d7","versionType":"git"},{"lessThan":"5f29dd540fe5ea3c826fc8ec759ba488b31f9707","status":"affected","version":"e4f2379db6c6823c5d4a4c2c912df00c65de51d7","versionType":"git"},{"lessThan":"6fc7449773748c7b904235a09a67054d78ab1172","status":"affected","version":"e4f2379db6c6823c5d4a4c2c912df00c65de51d7","versionType":"git"},{"lessThan":"81431da777924dddaefa5c9b0ca9da4a93f9df96","status":"affected","version":"e4f2379db6c6823c5d4a4c2c912df00c65de51d7","versionType":"git"},{"lessThan":"d0f2386f529807826e7404d40a245ee428f89f62","status":"affected","version":"e4f2379db6c6823c5d4a4c2c912df00c65de51d7","versionType":"git"},{"lessThan":"8efd5dcd31e22a9308b16b107a052fcd568c0a99","status":"affected","version":"e4f2379db6c6823c5d4a4c2c912df00c65de51d7","versionType":"git"},{"lessThan":"8f9adb3605e36f75639de529bb3d66e94194a388","status":"affected","version":"e4f2379db6c6823c5d4a4c2c912df00c65de51d7","versionType":"git"},{"lessThan":"2503d08f8a2de618e5c3a8183b250ff4a2e2d52c","status":"affected","version":"e4f2379db6c6823c5d4a4c2c912df00c65de51d7","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/arc/emac_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.11"},{"lessThan":"3.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.253","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.203","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.167","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.130","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.78","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.19","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.9","versionStartIncluding":"3.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"3.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: arc: emac: quiesce interrupts before requesting IRQ\n\nNormal RX/TX interrupts are enabled later, in arc_emac_open(), so probe\nshould not see interrupt delivery in the usual case. However, hardware may\nstill present stale or latched interrupt status left by firmware or the\nbootloader.\n\nIf probe later unwinds after devm_request_irq() has installed the handler,\nsuch a stale interrupt can still reach arc_emac_intr() during teardown and\nrace with release of the associated net_device.\n\nAvoid that window by putting the device into a known quiescent state before\nrequesting the IRQ: disable all EMAC interrupt sources and clear any\npending EMAC interrupt status bits. This keeps the change hardware-focused\nand minimal, while preventing spurious IRQ delivery from leftover state."}],"providerMetadata":{"dateUpdated":"2026-08-06T07:06:27.765Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/abd338da658d7faa8e26cfefc8f83f0066707564"},{"url":"https://git.kernel.org/stable/c/5f29dd540fe5ea3c826fc8ec759ba488b31f9707"},{"url":"https://git.kernel.org/stable/c/6fc7449773748c7b904235a09a67054d78ab1172"},{"url":"https://git.kernel.org/stable/c/81431da777924dddaefa5c9b0ca9da4a93f9df96"},{"url":"https://git.kernel.org/stable/c/d0f2386f529807826e7404d40a245ee428f89f62"},{"url":"https://git.kernel.org/stable/c/8efd5dcd31e22a9308b16b107a052fcd568c0a99"},{"url":"https://git.kernel.org/stable/c/8f9adb3605e36f75639de529bb3d66e94194a388"},{"url":"https://git.kernel.org/stable/c/2503d08f8a2de618e5c3a8183b250ff4a2e2d52c"}],"title":"net: ethernet: arc: emac: quiesce interrupts before requesting IRQ","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64587","datePublished":"2026-08-06T07:06:27.765Z","dateReserved":"2026-07-19T15:36:31.798Z","dateUpdated":"2026-08-06T07:06:27.765Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-06 08:16:33","lastModifiedDate":"2026-08-06 08:16:33","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64587","Ordinal":"1","Title":"net: ethernet: arc: emac: quiesce interrupts before requesting I","CVE":"CVE-2026-64587","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64587","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: arc: emac: quiesce interrupts before requesting IRQ\n\nNormal RX/TX interrupts are enabled later, in arc_emac_open(), so probe\nshould not see interrupt delivery in the usual case. However, hardware may\nstill present stale or latched interrupt status left by firmware or the\nbootloader.\n\nIf probe later unwinds after devm_request_irq() has installed the handler,\nsuch a stale interrupt can still reach arc_emac_intr() during teardown and\nrace with release of the associated net_device.\n\nAvoid that window by putting the device into a known quiescent state before\nrequesting the IRQ: disable all EMAC interrupt sources and clear any\npending EMAC interrupt status bits. This keeps the change hardware-focused\nand minimal, while preventing spurious IRQ delivery from leftover state.","Type":"Description","Title":"net: ethernet: arc: emac: quiesce interrupts before requesting I"}]}}}