CVE-2026-97481

CVE CVE-2026-97481EUVD EUVD-2026-86079Published 2026-09-24T16:04:23.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: serial: 8250: fix possible ISR soft lockup There are rare cases in which the host gets stuck in the ISR because it is flooded with messages during the startup phase. The reason for the soft lockup in the ISR is the missing FIFO error IRQ (FIFOE) handling. Not handling it and reporting IRQ_HANDLED triggers the IRQ immediately again. Fix this by adding a check for the FIFOE status and clearing the FIFO if no data is ready (DR). This behavior was observed on an AM62L device which uses the OMAP 8250 driver. Fix it for all 8250 drivers, since the OMAP driver's special IRQ setup handling may trigger this behavior more frequently, but it is not ensured that other 8250 drivers aren't affected.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4295c58990b7a84e8349a2226db692e252825b60; patch: 6.18.53; 0 <6.12.111; 0 <6.18.53; patch: 6.12.111; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0c6bf45e5a345cc3b9ffbeaf9083ecac3c2293eb; patch: 7.2; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2881b2e6da02daea1eb8254247ba8fd20c9d3348

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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