Vulnerability-Lookup

FKIE_CVE-2025-21950

Vulnerability from fkie_nvd - Published: 2025-04-01 16:15 - Updated: 2026-01-22 20:57

Severity ?

7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Summary

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.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1b8f7a2caa7f9cdfd135e3f78eb9d7e36fb95083	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4e15cf870d2c748e45d45ffc4d5b1dc1b7d50120	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/524f29d78c9bdeb49f31f5b0376a07d2fc5cf563	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/819cec1dc47cdeac8f5dd6ba81c1dbee2a68c3bb	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a4c21b878f0e237f45209a324c903ea7fb05247d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d7e5031fe3f161c8eb5e84db1540bc4373ed861b	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html	Third Party Advisory

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.14
linux	linux_kernel	6.14
linux	linux_kernel	6.14
linux	linux_kernel	6.14
linux	linux_kernel	6.14
debian	debian_linux	11.0

JSON

To clipboard

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  "lastModified": "2026-01-22T20:57:23.540",
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          "confidentialityImpact": "HIGH",
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CVE-2025-21950 (GCVE-0-2025-21950)

Vulnerability from cvelistv5 – Published: 2025-04-01 15:41 – Updated: 2025-11-03 19:39

Title

drivers: virt: acrn: hsm: Use kzalloc to avoid info leak in pmcmd_ioctl

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/4e15cf870d2c748e4…
	https://git.kernel.org/stable/c/524f29d78c9bdeb49…
	https://git.kernel.org/stable/c/d7e5031fe3f161c8e…
	https://git.kernel.org/stable/c/1b8f7a2caa7f9cdfd…
	https://git.kernel.org/stable/c/a4c21b878f0e237f4…
	https://git.kernel.org/stable/c/819cec1dc47cdeac8…

Impacted products

Vendor

Product

Version

Linux

Affected: 3d679d5aec648f50e645702929890b9611998a0b , < 4e15cf870d2c748e45d45ffc4d5b1dc1b7d50120 (git)
Affected: 3d679d5aec648f50e645702929890b9611998a0b , < 524f29d78c9bdeb49f31f5b0376a07d2fc5cf563 (git)
Affected: 3d679d5aec648f50e645702929890b9611998a0b , < d7e5031fe3f161c8eb5e84db1540bc4373ed861b (git)
Affected: 3d679d5aec648f50e645702929890b9611998a0b , < 1b8f7a2caa7f9cdfd135e3f78eb9d7e36fb95083 (git)
Affected: 3d679d5aec648f50e645702929890b9611998a0b , < a4c21b878f0e237f45209a324c903ea7fb05247d (git)
Affected: 3d679d5aec648f50e645702929890b9611998a0b , < 819cec1dc47cdeac8f5dd6ba81c1dbee2a68c3bb (git)

Linux

Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.179 , ≤ 5.15.* (semver)
Unaffected: 6.1.131 , ≤ 6.1.* (semver)
Unaffected: 6.6.83 , ≤ 6.6.* (semver)
Unaffected: 6.12.19 , ≤ 6.12.* (semver)
Unaffected: 6.13.7 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-21950

CVE-2025-21950 (GCVE-0-2025-21950)

Tags

Sightings

Nomenclature