CVE-2022-48764— KVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2}
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I. Basic Information for CVE-2022-48764
Vulnerability Information
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Vulnerability Title
KVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2}
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2} Free the "struct kvm_cpuid_entry2" array on successful post-KVM_RUN KVM_SET_CPUID{,2} to fix a memory leak, the callers of kvm_set_cpuid() free the array only on failure. BUG: memory leak unreferenced object 0xffff88810963a800 (size 2048): comm "syz-executor025", pid 3610, jiffies 4294944928 (age 8.080s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 0d 00 00 00 ................ 47 65 6e 75 6e 74 65 6c 69 6e 65 49 00 00 00 00 GenuntelineI.... backtrace: [<ffffffff814948ee>] kmalloc_node include/linux/slab.h:604 [inline] [<ffffffff814948ee>] kvmalloc_node+0x3e/0x100 mm/util.c:580 [<ffffffff814950f2>] kvmalloc include/linux/slab.h:732 [inline] [<ffffffff814950f2>] vmemdup_user+0x22/0x100 mm/util.c:199 [<ffffffff8109f5ff>] kvm_vcpu_ioctl_set_cpuid2+0x8f/0xf0 arch/x86/kvm/cpuid.c:423 [<ffffffff810711b9>] kvm_arch_vcpu_ioctl+0xb99/0x1e60 arch/x86/kvm/x86.c:5251 [<ffffffff8103e92d>] kvm_vcpu_ioctl+0x4ad/0x950 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4066 [<ffffffff815afacc>] vfs_ioctl fs/ioctl.c:51 [inline] [<ffffffff815afacc>] __do_sys_ioctl fs/ioctl.c:874 [inline] [<ffffffff815afacc>] __se_sys_ioctl fs/ioctl.c:860 [inline] [<ffffffff815afacc>] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860 [<ffffffff844a3335>] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [<ffffffff844a3335>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [<ffffffff84600068>] entry_SYSCALL_64_after_hwframe+0x44/0xae
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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
II. Public POCs for CVE-2022-48764
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Same Patch Batch · Linux · 2024-06-20 · 67 CVEs total
| CVE-2022-48750 | hwmon: (nct6775) Fix crash in clear_caseopen | |
| CVE-2022-48770 | bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack() | |
| CVE-2022-48768 | tracing/histogram: Fix a potential memory leak for kstrdup() | |
| CVE-2022-48769 | efi: runtime: avoid EFIv2 runtime services on Apple x86 machines | |
| CVE-2022-48756 | drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable | |
| CVE-2022-48755 | powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 | |
| CVE-2022-48754 | phylib: fix potential use-after-free | |
| CVE-2022-48753 | block: fix memory leak in disk_register_independent_access_ranges | |
| CVE-2022-48752 | powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending | |
| CVE-2022-48751 | net/smc: Transitional solution for clcsock race issue | |
| CVE-2022-48757 | net: fix information leakage in /proc/net/ptype | |
| CVE-2022-48748 | net: bridge: vlan: fix memory leak in __allowed_ingress | |
| CVE-2022-48749 | drm/msm/dpu: invalid parameter check in dpu_setup_dspp_pcc | |
| CVE-2022-48747 | block: Fix wrong offset in bio_truncate() | |
| CVE-2022-48745 | net/mlx5: Use del_timer_sync in fw reset flow of halting poll | |
| CVE-2022-48746 | net/mlx5e: Fix handling of wrong devices during bond netevent | |
| CVE-2022-48744 | net/mlx5e: Avoid field-overflowing memcpy() | |
| CVE-2022-48743 | net: amd-xgbe: Fix skb data length underflow | |
| CVE-2022-48742 | rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink() | |
| CVE-2022-48741 | ovl: fix NULL pointer dereference in copy up warning |
Showing top 20 of 67 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
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