Answer in brief
CVE-2026-64587 records a Unknown severity vulnerability in net: ethernet: arc: emac: quiesce interrupts before requesting IRQ. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-64587 records a Unknown severity vulnerability in net: ethernet: arc: emac: quiesce interrupts before requesting IRQ. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <abd338da658d7faa8e26cfefc8f83f0066707564 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <5f29dd540fe5ea3c826fc8ec759ba488b31f9707 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <6fc7449773748c7b904235a09a67054d78ab1172 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <81431da777924dddaefa5c9b0ca9da4a93f9df96 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <d0f2386f529807826e7404d40a245ee428f89f62 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <8efd5dcd31e22a9308b16b107a052fcd568c0a99 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <8f9adb3605e36f75639de529bb3d66e94194a388 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <2503d08f8a2de618e5c3a8183b250ff4a2e2d52c | abd338da658d7faa8e26cfefc8f83f0066707564, 5f29dd540fe5ea3c826fc8ec759ba488b31f9707, 6fc7449773748c7b904235a09a67054d78ab1172, 81431da777924dddaefa5c9b0ca9da4a93f9df96, d0f2386f529807826e7404d40a245ee428f89f62, 8efd5dcd31e22a9308b16b107a052fcd568c0a99, 8f9adb3605e36f75639de529bb3d66e94194a388, 2503d08f8a2de618e5c3a8183b250ff4a2e2d52c |
| Linux/Linuxgeneric | 3.11 | Not reported |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <abd338da658d7faa8e26cfefc8f83f0066707564 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <5f29dd540fe5ea3c826fc8ec759ba488b31f9707 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <6fc7449773748c7b904235a09a67054d78ab1172 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <81431da777924dddaefa5c9b0ca9da4a93f9df96 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <d0f2386f529807826e7404d40a245ee428f89f62 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <8efd5dcd31e22a9308b16b107a052fcd568c0a99 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <8f9adb3605e36f75639de529bb3d66e94194a388 || >=e4f2379db6c6823c5d4a4c2c912df00c65de51d7 <2503d08f8a2de618e5c3a8183b250ff4a2e2d52c | abd338da658d7faa8e26cfefc8f83f0066707564, 5f29dd540fe5ea3c826fc8ec759ba488b31f9707, 6fc7449773748c7b904235a09a67054d78ab1172, 81431da777924dddaefa5c9b0ca9da4a93f9df96, d0f2386f529807826e7404d40a245ee428f89f62, 8efd5dcd31e22a9308b16b107a052fcd568c0a99, 8f9adb3605e36f75639de529bb3d66e94194a388, 2503d08f8a2de618e5c3a8183b250ff4a2e2d52c |
| Linux/Linuxgeneric | 3.11 | Not reported |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.