{"id":"CVE-2024-27067","state":"PUBLISHED","title":"xen/evtchn: avoid WARN() when unbinding an event channel","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxen/evtchn: avoid WARN() when unbinding an event channel\n\nWhen unbinding a user event channel, the related handler might be\ncalled a last time in case the kernel was built with\nCONFIG_DEBUG_SHIRQ. This might cause a WARN() in the handler.\n\nAvoid that by adding an \"unbinding\" flag to struct user_event which\nwill short circuit the handler.","publishedAt":"2024-05-01T13:04:16.051Z","updatedAt":"2026-05-23T15:41:48.473Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3c8f5965a99397368d3762a9814a21a3e442e1a4","status":"affected","lessThan":"99e425032c6ec13584d3cd33846e0c7307501b47","versionType":"git"},{"version":"9e90e58c11b74c2bddac4b2702cf79d36b981278","status":"affected","lessThan":"35485dad6e28f9b17884764d4692b1655cb848d0","versionType":"git"},{"version":"9e90e58c11b74c2bddac4b2702cf79d36b981278","status":"affected","lessThan":"9e2d4b58c1da48a32905802aaeadba7084b46895","versionType":"git"},{"version":"9e90e58c11b74c2bddac4b2702cf79d36b981278","status":"affected","lessThan":"51c23bd691c0f1fb95b29731c356c6fd69925d17","versionType":"git"},{"version":"6.6.19","status":"affected","lessThan":"6.6.23","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/xen/evtchn.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.7","versionType":"semver"},{"version":"6.6.23","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.11","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8.2","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/xen/evtchn.c"]}],"references":["https://git.kernel.org/stable/c/99e425032c6ec13584d3cd33846e0c7307501b47","https://git.kernel.org/stable/c/35485dad6e28f9b17884764d4692b1655cb848d0","https://git.kernel.org/stable/c/9e2d4b58c1da48a32905802aaeadba7084b46895","https://git.kernel.org/stable/c/51c23bd691c0f1fb95b29731c356c6fd69925d17"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:10.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/27xxx/CVE-2024-27067.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-27067","state":"PUBLISHED","datePublished":"2024-05-01T13:04:16.051Z","dateUpdated":"2026-05-23T15:41:48.473Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-19T14:20:24.216Z"},"containers":{"cna":{"title":"xen/evtchn: avoid WARN() when unbinding an event channel","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxen/evtchn: avoid WARN() when unbinding an event channel\n\nWhen unbinding a user event channel, the related handler might be\ncalled a last time in case the kernel was built with\nCONFIG_DEBUG_SHIRQ. This might cause a WARN() in the handler.\n\nAvoid that by adding an \"unbinding\" flag to struct user_event which\nwill short circuit the handler."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3c8f5965a99397368d3762a9814a21a3e442e1a4","status":"affected","lessThan":"99e425032c6ec13584d3cd33846e0c7307501b47","versionType":"git"},{"version":"9e90e58c11b74c2bddac4b2702cf79d36b981278","status":"affected","lessThan":"35485dad6e28f9b17884764d4692b1655cb848d0","versionType":"git"},{"version":"9e90e58c11b74c2bddac4b2702cf79d36b981278","status":"affected","lessThan":"9e2d4b58c1da48a32905802aaeadba7084b46895","versionType":"git"},{"version":"9e90e58c11b74c2bddac4b2702cf79d36b981278","status":"affected","lessThan":"51c23bd691c0f1fb95b29731c356c6fd69925d17","versionType":"git"},{"version":"6.6.19","status":"affected","lessThan":"6.6.23","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/xen/evtchn.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.7","versionType":"semver"},{"version":"6.6.23","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.11","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8.2","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/xen/evtchn.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/99e425032c6ec13584d3cd33846e0c7307501b47"},{"url":"https://git.kernel.org/stable/c/35485dad6e28f9b17884764d4692b1655cb848d0"},{"url":"https://git.kernel.org/stable/c/9e2d4b58c1da48a32905802aaeadba7084b46895"},{"url":"https://git.kernel.org/stable/c/51c23bd691c0f1fb95b29731c356c6fd69925d17"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:41:48.473Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.19","versionEndExcluding":"6.6.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.7.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.8.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.9"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-17T17:40:05.117300Z","id":"CVE-2024-27067","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-17T17:45:14.642Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/99e425032c6ec13584d3cd33846e0c7307501b47","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/35485dad6e28f9b17884764d4692b1655cb848d0","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/9e2d4b58c1da48a32905802aaeadba7084b46895","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/51c23bd691c0f1fb95b29731c356c6fd69925d17","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T00:27:57.836Z"}}]}}}