{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90306","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.800Z","datePublished":"2026-09-17T16:08:28.387Z","dateUpdated":"2026-09-21T13:15:22.727Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-21T13:15:22.727Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nARM: 9481/2: breakpoint: CFI breakpoints only on demand\n\nThis removes the stub hw_breakpoint_cfi_handler() from ARM, making\nit not steal breakpoint type 0x03 (ARM_ENTRY_CFI_BREAKPOINT) unless\nCFI is actively used in the kernel.\n\nWhen not instrumenting with CFI, or when a breakpoint is issued in\nuserspace, we fall through to return 1 from hw_breakpoint_pending()\n\"unhandled fault\" so userspace can make use of this breakpoint.\n\nTested with LKDTM and this command line:\necho CFI_FORWARD_PROTO > /sys/kernel/debug/provoke-crash/DIRECT\nstill works as expected."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm/kernel/hw_breakpoint.c"],"versions":[{"version":"c3f89986fde7bb9ccc86a901bf28e1f7d69fc3b3","lessThan":"314f1a6762b5d51b37784ed7dc701d4c3d893703","status":"affected","versionType":"git"},{"version":"c3f89986fde7bb9ccc86a901bf28e1f7d69fc3b3","lessThan":"da64b150e4b7bee615b33ab21f3137c31ec36922","status":"affected","versionType":"git"},{"version":"c3f89986fde7bb9ccc86a901bf28e1f7d69fc3b3","lessThan":"8ed9bff906cf8036531d1559f10e82733a52b41f","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/kernel/hw_breakpoint.c"],"versions":[{"version":"6.10","status":"affected"},{"version":"0","lessThan":"6.10","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","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":"6.10","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/314f1a6762b5d51b37784ed7dc701d4c3d893703"},{"url":"https://git.kernel.org/stable/c/da64b150e4b7bee615b33ab21f3137c31ec36922"},{"url":"https://git.kernel.org/stable/c/8ed9bff906cf8036531d1559f10e82733a52b41f"}],"title":"ARM: 9481/2: breakpoint: CFI breakpoints only on demand","x_generator":{"engine":"bippy-1.2.0"}}}}