{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90304","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.800Z","datePublished":"2026-09-17T16:08:27.095Z","dateUpdated":"2026-09-17T16:08:27.095Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:08:27.095Z"},"descriptions":[{"lang":"en","value":"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_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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm/mm/fault.c"],"versions":[{"version":"c6e61c06d6061750597e79c598acb5dead44c35b","lessThan":"8d7cbc6df9632d334b21c4be66ccdde76a08fb13","status":"affected","versionType":"git"},{"version":"c6e61c06d6061750597e79c598acb5dead44c35b","lessThan":"e79ca91165d4fd18549c536abdb86101e889052f","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm/mm/fault.c"],"versions":[{"version":"7.1","status":"affected"},{"version":"0","lessThan":"7.1","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/8d7cbc6df9632d334b21c4be66ccdde76a08fb13"},{"url":"https://git.kernel.org/stable/c/e79ca91165d4fd18549c536abdb86101e889052f"}],"title":"ARM: 9484/1: enable interrupts when unhandled user faults are triggered","x_generator":{"engine":"bippy-1.2.0"}}}}