{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52968","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.375Z","datePublished":"2026-06-24T16:28:47.438Z","dateUpdated":"2026-06-24T16:28:47.438Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-24T16:28:47.438Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic\n\nkvm_s390_pci_aif_enable(), kvm_s390_pci_aif_disable(), and\naen_host_forward() index the GAIT by manually multiplying the index\nwith sizeof(struct zpci_gaite).\n\nSince aift->gait is already a struct zpci_gaite pointer, this\ndouble-scales the offset, accessing element aisb*16 instead of aisb.\n\nThis causes out-of-bounds accesses when aisb >= 32 (with\nZPCI_NR_DEVICES=512)\n\nFix by removing the erroneous sizeof multiplication."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kvm/interrupt.c","arch/s390/kvm/pci.c"],"versions":[{"version":"73f91b004321f2510fa79e66035dbbf1870fcf56","lessThan":"31a9d9f9942885aae356a1a57c79e82c5b5b0828","status":"affected","versionType":"git"},{"version":"73f91b004321f2510fa79e66035dbbf1870fcf56","lessThan":"a99a25db131ece5e6c0f7632da606de631efe4f2","status":"affected","versionType":"git"},{"version":"73f91b004321f2510fa79e66035dbbf1870fcf56","lessThan":"11b8ff5b930b351dd1f6f088dce0beb027ac92d0","status":"affected","versionType":"git"},{"version":"73f91b004321f2510fa79e66035dbbf1870fcf56","lessThan":"b22a2da8792a7bfe743c1a922e77fa499ddedbe8","status":"affected","versionType":"git"},{"version":"73f91b004321f2510fa79e66035dbbf1870fcf56","lessThan":"e7216651b94e92e5433fb2f54b77864642b4ea48","status":"affected","versionType":"git"},{"version":"73f91b004321f2510fa79e66035dbbf1870fcf56","lessThan":"16d990a15491cf76cd6eef0846e1b4100e63261a","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/s390/kvm/interrupt.c","arch/s390/kvm/pci.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.141","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.91","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.33","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.10","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"6.0","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/31a9d9f9942885aae356a1a57c79e82c5b5b0828"},{"url":"https://git.kernel.org/stable/c/a99a25db131ece5e6c0f7632da606de631efe4f2"},{"url":"https://git.kernel.org/stable/c/11b8ff5b930b351dd1f6f088dce0beb027ac92d0"},{"url":"https://git.kernel.org/stable/c/b22a2da8792a7bfe743c1a922e77fa499ddedbe8"},{"url":"https://git.kernel.org/stable/c/e7216651b94e92e5433fb2f54b77864642b4ea48"},{"url":"https://git.kernel.org/stable/c/16d990a15491cf76cd6eef0846e1b4100e63261a"}],"title":"KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic","x_generator":{"engine":"bippy-1.2.0"}}}}