CVE-2025-21950

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.

• linux linux kernel (>= 5.12 < 5.15.179) • linux linux kernel (>= 5.16 < 6.1.131) • linux linux kernel (>= 6.2 < 6.6.83) • linux linux kernel (>= 6.7 < 6.12.19) • linux linux kernel (>= 6.13 < 6.13.7) • linux linux kernel 6.14 • debian debian linux 11.0