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CVE-2024-36953— KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 KVM:arm64:vgic-v2 模块 vgic_v2_parse_attr 中存在漏洞。

AI Predicted 4.3 Difficulty: Hard EPSS 0.23% · P13

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 7d450e2821710718fd6703e9c486249cee913bab< 4404465a1bee3607ad90a4c5f9e16dfd75b85728 affected
7d450e2821710718fd6703e9c486249cee913bab< 17db92da8be5dd3bf63c01f4109fe47db64fc66f affected
7d450e2821710718fd6703e9c486249cee913bab< 3a5b0378ac6776c7c31b18e0f3c1389bd6005e80 affected
7d450e2821710718fd6703e9c486249cee913bab< 8d6a1c8e3de36cb0f5e866f1a582b00939e23104 affected
7d450e2821710718fd6703e9c486249cee913bab< 01981276d64e542c177b243f7c979fee855d5487 affected
7d450e2821710718fd6703e9c486249cee913bab< 6ddb4f372fc63210034b903d96ebbeb3c7195adb affected
4.7 affected
< 4.7 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-36953

Vulnerability Information
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Vulnerability Title
KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() vgic_v2_parse_attr() is responsible for finding the vCPU that matches the user-provided CPUID, which (of course) may not be valid. If the ID is invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled gracefully. Similar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id() actually returns something and fail the ioctl if not.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 KVM:arm64:vgic-v2 模块 vgic_v2_parse_attr 中存在漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 7d450e2821710718fd6703e9c486249cee913bab ~ 4404465a1bee3607ad90a4c5f9e16dfd75b85728 -
Linux Linux 4.7 -

II. Public POCs for CVE-2024-36953

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III. Intelligence Information for CVE-2024-36953

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Mailing List Discussions for CVE-2024-36953 (1)

Other References for CVE-2024-36953 (5)

Same Patch Batch · Linux · 2024-05-30 · 93 CVEs total

CVE-2024-36958 9.8 CRITICAL NFSD: Fix nfsd4_encode_fattr4() crasher
CVE-2024-36886 9.8 CRITICAL tipc: fix UAF in error path
CVE-2024-36911 9.8 CRITICAL hv_netvsc: Don't free decrypted memory
CVE-2024-36912 9.6 CRITICAL Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl
CVE-2024-36913 9.3 CRITICAL Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails
CVE-2024-36909 9.3 CRITICAL Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted
CVE-2024-36922 8.8 HIGH wifi: iwlwifi: read txq->read_ptr under lock
CVE-2024-36921 8.8 HIGH wifi: iwlwifi: mvm: guard against invalid STA ID on removal
CVE-2024-36910 8.4 HIGH uio_hv_generic: Don't free decrypted memory
CVE-2024-36032 8.1 HIGH Bluetooth: qca: fix info leak when fetching fw build id
CVE-2024-36933 7.8 HIGH nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().
CVE-2024-36904 7.8 HIGH tcp: Use refcount_inc_not_zero() in tcp_twsk_unique().
CVE-2024-36914 7.8 HIGH drm/amd/display: Skip on writeback when it's not applicable
CVE-2024-36918 7.8 HIGH bpf: Check bloom filter map value size
CVE-2024-36018 7.8 HIGH nouveau/uvmm: fix addr/range calcs for remap operations
CVE-2024-36894 7.8 HIGH usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete
CVE-2024-36890 7.8 HIGH mm/slab: make __free(kfree) accept error pointers
CVE-2024-36940 7.8 HIGH pinctrl: core: delete incorrect free in pinctrl_enable()
CVE-2024-36928 7.8 HIGH s390/qeth: Fix kernel panic after setting hsuid
CVE-2024-36884 7.8 HIGH iommu/arm-smmu: Use the correct type in nvidia_smmu_context_fault()

Showing top 20 of 93 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-36953

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