CVE-2025-21950
drivers: virt: acrn: hsm: Use kzalloc to avoid info leak in pmcmd_ioctl
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 1, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
3d679d5aec648f50e645702929890b9611998a0b < 4e15cf870d2c748e45d45ffc4d5b1dc1b7d50120 3d679d5aec648f50e645702929890b9611998a0b < 524f29d78c9bdeb49f31f5b0376a07d2fc5cf563 3d679d5aec648f50e645702929890b9611998a0b < d7e5031fe3f161c8eb5e84db1540bc4373ed861b 3d679d5aec648f50e645702929890b9611998a0b < 1b8f7a2caa7f9cdfd135e3f78eb9d7e36fb95083 3d679d5aec648f50e645702929890b9611998a0b < a4c21b878f0e237f45209a324c903ea7fb05247d 3d679d5aec648f50e645702929890b9611998a0b < 819cec1dc47cdeac8f5dd6ba81c1dbee2a68c3bb
Linux / Linux
5.12
References
git.kernel.org: https://git.kernel.org/stable/c/4e15cf870d2c748e45d45ffc4d5b1dc1b7d50120 git.kernel.org: https://git.kernel.org/stable/c/524f29d78c9bdeb49f31f5b0376a07d2fc5cf563 git.kernel.org: https://git.kernel.org/stable/c/d7e5031fe3f161c8eb5e84db1540bc4373ed861b git.kernel.org: https://git.kernel.org/stable/c/1b8f7a2caa7f9cdfd135e3f78eb9d7e36fb95083 git.kernel.org: https://git.kernel.org/stable/c/a4c21b878f0e237f45209a324c903ea7fb05247d git.kernel.org: https://git.kernel.org/stable/c/819cec1dc47cdeac8f5dd6ba81c1dbee2a68c3bb lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html