CVE-2025-21950— drivers: virt: acrn: hsm: Use kzalloc to avoid info leak in pmcmd_ioctl
Affected Version Matrix 14
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 3d679d5aec648f50e645702929890b9611998a0b< 4e15cf870d2c748e45d45ffc4d5b1dc1b7d50120 | affected |
3d679d5aec648f50e645702929890b9611998a0b< 524f29d78c9bdeb49f31f5b0376a07d2fc5cf563 | affected | ||
3d679d5aec648f50e645702929890b9611998a0b< d7e5031fe3f161c8eb5e84db1540bc4373ed861b | affected | ||
3d679d5aec648f50e645702929890b9611998a0b< 1b8f7a2caa7f9cdfd135e3f78eb9d7e36fb95083 | affected | ||
3d679d5aec648f50e645702929890b9611998a0b< a4c21b878f0e237f45209a324c903ea7fb05247d | affected | ||
3d679d5aec648f50e645702929890b9611998a0b< 819cec1dc47cdeac8f5dd6ba81c1dbee2a68c3bb | affected | ||
5.12 | affected | ||
< 5.12 | unaffected | ||
| … +6 more rows | |||
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I. Basic Information for CVE-2025-21950
Vulnerability Information
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Vulnerability Title
drivers: virt: acrn: hsm: Use kzalloc to avoid info leak in pmcmd_ioctl
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drivers: virt: acrn: hsm: Use kzalloc to avoid info leak in pmcmd_ioctl In the "pmcmd_ioctl" function, three memory objects allocated by kmalloc are initialized by "hcall_get_cpu_state", which are then copied to user space. The initializer is indeed implemented in "acrn_hypercall2" (arch/x86/include/asm/acrn.h). There is a risk of information leakage due to uninitialized bytes.
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，该漏洞源于pmcmd_ioctl未完全初始化结构体可能导致信息泄露。
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-2025-21950
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2025-21950 (2)
Same Patch Batch · Linux · 2025-04-01 · 93 CVEs total
| CVE-2025-21947 | 8.1 HIGH | ksmbd: fix type confusion via race condition when using ipc_msg_send_request |
| CVE-2025-21925 | llc: do not use skb_get() before dev_queue_xmit() | |
| CVE-2025-21931 | hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio | |
| CVE-2025-21934 | rapidio: fix an API misues when rio_add_net() fails | |
| CVE-2025-21935 | rapidio: add check for rio_add_net() in rio_scan_alloc_net() | |
| CVE-2025-21937 | Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name() | |
| CVE-2025-21936 | Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected() | |
| CVE-2025-21939 | drm/xe/hmm: Don't dereference struct page pointers without notifier lock | |
| CVE-2025-21933 | arm: pgtable: fix NULL pointer dereference issue | |
| CVE-2025-21927 | nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() | |
| CVE-2025-21926 | net: gso: fix ownership in __udp_gso_segment | |
| CVE-2025-21928 | HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() | |
| CVE-2025-21924 | net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle returns an e | |
| CVE-2025-21922 | ppp: Fix KMSAN uninit-value warning with bpf | |
| CVE-2025-21923 | HID: hid-steam: Fix use-after-free when detaching device | |
| CVE-2025-21920 | vlan: enforce underlying device type | |
| CVE-2025-21921 | net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device | |
| CVE-2025-21919 | sched/fair: Fix potential memory corruption in child_cfs_rq_on_list | |
| CVE-2025-21918 | usb: typec: ucsi: Fix NULL pointer access | |
| CVE-2025-21917 | usb: renesas_usbhs: Flush the notify_hotplug_work |
Showing top 20 of 93 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2025-21950
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