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.
CVSS Details
- CVSS 3.1 Base Score: 7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Aug 9, 2026 | Aug 9, 2026 |
| Ubuntu | — | Upgrade linux-image-6.8.0-2050-raspi-realtimeUpgrade linux-image-gcpUpgrade linux-image-raspi-realtimeUpgrade linux-image-raspiUpgrade linux-image-gcp-5.15Upgrade linux-image-raspi-5.15Upgrade linux-image-raspi-6.8Upgrade linux-image-5.15.0-1106-raspiUpgrade linux-image-6.8.0-1061-raspiUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.15.0-1112-gcpUpgrade linux-image-raspi-realtime-6.8 | Aug 11, 2026 | Aug 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 12, 2026 | Aug 6, 2026 |
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