{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-46762","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-09-11T15:12:18.272Z","datePublished":"2024-09-18T07:12:21.854Z","dateUpdated":"2026-01-05T11:37:37.901Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-01-05T11:37:37.901Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxen: privcmd: Fix possible access to a freed kirqfd instance\n\nNothing prevents simultaneous ioctl calls to privcmd_irqfd_assign() and\nprivcmd_irqfd_deassign(). If that happens, it is possible that a kirqfd\ncreated and added to the irqfds_list by privcmd_irqfd_assign() may get\nremoved by another thread executing privcmd_irqfd_deassign(), while the\nformer is still using it after dropping the locks.\n\nThis can lead to a situation where an already freed kirqfd instance may\nbe accessed and cause kernel oops.\n\nUse SRCU locking to prevent the same, as is done for the KVM\nimplementation for irqfds."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/xen/privcmd.c"],"versions":[{"version":"f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6","lessThan":"e997b357b13a7d95de31681fc54fcc34235fa527","status":"affected","versionType":"git"},{"version":"f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6","lessThan":"112fd2f02b308564724b8e81006c254d20945c4b","status":"affected","versionType":"git"},{"version":"f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6","lessThan":"611ff1b1ae989a7bcce3e2a8e132ee30e968c557","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/xen/privcmd.c"],"versions":[{"version":"6.6","status":"affected"},{"version":"0","lessThan":"6.6","status":"unaffected","versionType":"semver"},{"version":"6.6.51","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.10.10","lessThanOrEqual":"6.10.*","status":"unaffected","versionType":"semver"},{"version":"6.11","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":"6.6","versionEndExcluding":"6.6.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.10.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.11"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e997b357b13a7d95de31681fc54fcc34235fa527"},{"url":"https://git.kernel.org/stable/c/112fd2f02b308564724b8e81006c254d20945c4b"},{"url":"https://git.kernel.org/stable/c/611ff1b1ae989a7bcce3e2a8e132ee30e968c557"}],"title":"xen: privcmd: Fix possible access to a freed kirqfd instance","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-29T14:43:33.478974Z","id":"CVE-2024-46762","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-29T14:43:47.331Z"}}]}}