CVE-2026-90304

CVE CVE-2026-90304EUVD EUVD-2026-81965Published 2026-09-17T16:08:27.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: ARM: 9484/1: enable interrupts when unhandled user faults are triggered PREEMPT_RT requires interrupts to be enabled when sending signals. When do_DataAbort()/do_PrefetchAbort() triggers unhandled user faults, that is `inf->fn()` return a non-zero value, and the interrupts are not enabled within the hook function, force_sig_fault() will be called with interrupts disabled. This can be triggered by user programs executing the bkpt instruction, with kernel config CONFIG_PERF_EVENTS=n. Enable interrupts in do_DataAbort()/do_PrefetchAbort() when unhandled user faults are triggered to fix the issue.

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 patch: 7.3-rc1; patch: 0; c6e61c06d6061750597e79c598acb5dead44c35b <8d7cbc6df9632d334b21c4be66ccdde76a08fb13; patch: 7.2.6; c6e61c06d6061750597e79c598acb5dead44c35b <e79ca91165d4fd18549c536abdb86101e889052f; 7.1

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

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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