{"id":"CVE-2026-64587","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-64587","generatedAt":"2026-10-28T02:18:43.425Z","title":"In the Linux kernel, the following vulnerability has been resolved: net: ethernet: arc: emac: quiesce interrupts before requesting IRQ Normal RX/TX interrupts are enabled later, in arc_emac_open(), so probe should not see interrupt delivery in the usual…","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.","published":"2026-08-06T08:16:34.000Z","lastModified":"2026-08-08T15:16:34.000Z","status":"Received","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":[],"affected":[],"epss":{"score":0.00156,"percentile":0.04655,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/2503d08f8a2de618e5c3a8183b250ff4a2e2d52c","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5f29dd540fe5ea3c826fc8ec759ba488b31f9707","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6fc7449773748c7b904235a09a67054d78ab1172","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/81431da777924dddaefa5c9b0ca9da4a93f9df96","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8efd5dcd31e22a9308b16b107a052fcd568c0a99","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8f9adb3605e36f75639de529bb3d66e94194a388","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/abd338da658d7faa8e26cfefc8f83f0066707564","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d0f2386f529807826e7404d40a245ee428f89f62","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64587","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}