| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel\n\nAdvertise support for Hyper-V's SEND_IPI and SEND_IPI_EX hypercalls if and\nonly if the local API is emulated/virtualized by KVM, and explicitly reject\nsaid hypercalls if the local APIC is emulated in userspace, i.e. don't rely\non userspace to opt-in to KVM_CAP_HYPERV_ENFORCE_CPUID.\n\nRejecting SEND_IPI and SEND_IPI_EX fixes a NULL-pointer dereference if\nHyper-V enlightenments are exposed to the guest without an in-kernel local\nAPIC:\n\n dump_stack+0xbe/0xfd\n __kasan_report.cold+0x34/0x84\n kasan_report+0x3a/0x50\n __apic_accept_irq+0x3a/0x5c0\n kvm_hv_send_ipi.isra.0+0x34e/0x820\n kvm_hv_hypercall+0x8d9/0x9d0\n kvm_emulate_hypercall+0x506/0x7e0\n __vmx_handle_exit+0x283/0xb60\n vmx_handle_exit+0x1d/0xd0\n vcpu_enter_guest+0x16b0/0x24c0\n vcpu_run+0xc0/0x550\n kvm_arch_vcpu_ioctl_run+0x170/0x6d0\n kvm_vcpu_ioctl+0x413/0xb20\n __se_sys_ioctl+0x111/0x160\n do_syscal1_64+0x30/0x40\n entry_SYSCALL_64_after_hwframe+0x67/0xd1\n\nNote, checking the sending vCPU is sufficient, as the per-VM irqchip_mode\ncan't be modified after vCPUs are created, i.e. if one vCPU has an\nin-kernel local APIC, then all vCPUs have an in-kernel local APIC." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/x86/kvm/hyperv.c" |
| ], |
| "versions": [ |
| { |
| "version": "214ff83d4473a7757fa18a64dc7efe3b0e158486", |
| "lessThan": "61224533f2b61e252b03e214195d27d64b22989a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "214ff83d4473a7757fa18a64dc7efe3b0e158486", |
| "lessThan": "45fa526b0f5a34492ed0536c3cdf88b78380e4de", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "214ff83d4473a7757fa18a64dc7efe3b0e158486", |
| "lessThan": "5393cf22312418262679eaadb130d608c75fe690", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "214ff83d4473a7757fa18a64dc7efe3b0e158486", |
| "lessThan": "874ff13c73c45ecb38cb82191e8c1d523f0dc81b", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "214ff83d4473a7757fa18a64dc7efe3b0e158486", |
| "lessThan": "aca8be4403fb90db7adaf63830e27ebe787a76e8", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "214ff83d4473a7757fa18a64dc7efe3b0e158486", |
| "lessThan": "ca29f58ca374c40a0e69c5306fc5c940a0069074", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "214ff83d4473a7757fa18a64dc7efe3b0e158486", |
| "lessThan": "a8de7f100bb5989d9c3627d3a223ee1c863f3b69", |
| "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/x86/kvm/hyperv.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.20", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.20", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.236", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.179", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.129", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.79", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.16", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13.4", |
| "lessThanOrEqual": "6.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.14", |
| "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": "4.20", |
| "versionEndExcluding": "5.10.236" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "5.15.179" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "6.1.129" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "6.6.79" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "6.12.16" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "6.13.4" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.20", |
| "versionEndExcluding": "6.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/61224533f2b61e252b03e214195d27d64b22989a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/45fa526b0f5a34492ed0536c3cdf88b78380e4de" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5393cf22312418262679eaadb130d608c75fe690" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/874ff13c73c45ecb38cb82191e8c1d523f0dc81b" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/aca8be4403fb90db7adaf63830e27ebe787a76e8" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ca29f58ca374c40a0e69c5306fc5c940a0069074" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a8de7f100bb5989d9c3627d3a223ee1c863f3b69" |
| } |
| ], |
| "title": "KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21779", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
