CVE-2025-21950

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Source
https://cve.org/CVERecord?id=CVE-2025-21950
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21950.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21950
Downstream
Related
Published
2025-04-01T15:41:10.949Z
Modified
2026-03-11T07:48:39.116584Z
Summary
drivers: virt: acrn: hsm: Use kzalloc to avoid info leak in pmcmd_ioctl
Details

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 "pmcmdioctl" function, three memory objects allocated by kmalloc are initialized by "hcallgetcpustate", 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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21950.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
3d679d5aec648f50e645702929890b9611998a0b
Fixed
4e15cf870d2c748e45d45ffc4d5b1dc1b7d50120
Fixed
524f29d78c9bdeb49f31f5b0376a07d2fc5cf563
Fixed
d7e5031fe3f161c8eb5e84db1540bc4373ed861b
Fixed
1b8f7a2caa7f9cdfd135e3f78eb9d7e36fb95083
Fixed
a4c21b878f0e237f45209a324c903ea7fb05247d
Fixed
819cec1dc47cdeac8f5dd6ba81c1dbee2a68c3bb

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21950.json"