CVE-2026-64587 (GCVE-0-2026-64587)

Vulnerability from cvelistv5 – Published: 2026-08-06 07:06 – Updated: 2026-08-06 07:06
VLAI
Title
net: ethernet: arc: emac: quiesce interrupts before requesting IRQ
Summary
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 case. However, hardware may still present stale or latched interrupt status left by firmware or the bootloader. If probe later unwinds after devm_request_irq() has installed the handler, such a stale interrupt can still reach arc_emac_intr() during teardown and race with release of the associated net_device. Avoid that window by putting the device into a known quiescent state before requesting the IRQ: disable all EMAC interrupt sources and clear any pending EMAC interrupt status bits. This keeps the change hardware-focused and minimal, while preventing spurious IRQ delivery from leftover state.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e4f2379db6c6823c5d4a4c2c912df00c65de51d7 , < abd338da658d7faa8e26cfefc8f83f0066707564 (git)
Affected: e4f2379db6c6823c5d4a4c2c912df00c65de51d7 , < 5f29dd540fe5ea3c826fc8ec759ba488b31f9707 (git)
Affected: e4f2379db6c6823c5d4a4c2c912df00c65de51d7 , < 6fc7449773748c7b904235a09a67054d78ab1172 (git)
Affected: e4f2379db6c6823c5d4a4c2c912df00c65de51d7 , < 81431da777924dddaefa5c9b0ca9da4a93f9df96 (git)
Affected: e4f2379db6c6823c5d4a4c2c912df00c65de51d7 , < d0f2386f529807826e7404d40a245ee428f89f62 (git)
Affected: e4f2379db6c6823c5d4a4c2c912df00c65de51d7 , < 8efd5dcd31e22a9308b16b107a052fcd568c0a99 (git)
Affected: e4f2379db6c6823c5d4a4c2c912df00c65de51d7 , < 8f9adb3605e36f75639de529bb3d66e94194a388 (git)
Affected: e4f2379db6c6823c5d4a4c2c912df00c65de51d7 , < 2503d08f8a2de618e5c3a8183b250ff4a2e2d52c (git)
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Linux Linux Affected: 3.11
Unaffected: 0 , < 3.11 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.19 , ≤ 6.18.* (semver)
Unaffected: 6.19.9 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
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        }
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      "providerMetadata": {
        "dateUpdated": "2026-08-06T07:06:27.765Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "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"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.