VULNERABILITY

Debian: CVE-2025-21950: linux -- security update

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Debian: CVE-2025-21950: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:C/I:N/A:N)
Published
04/01/2025
Created
04/15/2025
Added
04/14/2025
Modified
04/15/2025

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.

Solution(s)

  • debian-upgrade-linux

References

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