{"id":"CVE-2026-90304","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9484/1: enable interrupts when unhandled user faults are triggered\n\nPREEMPT_RT requires interrupts to be enabled when sending signals.\n\nWhen do_DataAbort()/do_Pref…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9484/1: enable interrupts when unhandled user faults are triggered\n\nPREEMPT_RT requires interrupts to be enabled when sending signals.\n\nWhen do_DataAbort()/do_Pref…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= c6e61c06d6061750597e79c598acb5dead44c35b < 8d7cbc6df9632d334b21c4be66ccdde76a08fb13","Linux >= c6e61c06d6061750597e79c598acb5dead44c35b < e79ca91165d4fd18549c536abdb86101e889052f","Linux 7.1"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:28.050","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90304","references":[{"url":"https://git.kernel.org/stable/c/8d7cbc6df9632d334b21c4be66ccdde76a08fb13","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e79ca91165d4fd18549c536abdb86101e889052f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.828Z","epss":0.00189,"epssPercentile":0.08807,"slug":"CVE-2026-90304","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9484/1: enable interrupts when unhandled user faults are triggered\n\nPREEMPT_RT requires interrupts to be enabled when sending signals.\n\nWhen do_DataAbort()/do_PrefetchAbort() triggers unhandled user faults,\nthat is `inf->fn()` return a non-zero value, and the interrupts are not\nenabled within the hook function, force_sig_fault() will be called\nwith interrupts disabled.\n\nThis can be triggered by user programs executing the bkpt instruction,\nwith kernel config CONFIG_PERF_EVENTS=n.\n\nEnable interrupts in do_DataAbort()/do_PrefetchAbort() when unhandled\nuser faults are triggered to fix the issue.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}