#VU116495 Memory leak in Linux kernel - CVE-2022-50505
Published: October 4, 2025 / Updated: October 27, 2025
Vulnerability identifier: #VU116495
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-50505
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the ppr_notifier() function in drivers/iommu/amd/iommu_v2.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/03f51c72997559e73b327608f0cccfded715c9a0
- https://git.kernel.org/stable/c/6cf0981c2233f97d56938d9d61845383d6eb227c
- https://git.kernel.org/stable/c/6e501b3fd7a2e1c4372d72bc70717aaca2beb8a5
- https://git.kernel.org/stable/c/8581ec1feb895ff596fe3d326d9ba320083290aa
- https://git.kernel.org/stable/c/902cc2507091a81643502d8ceb0e2f105e902518
- https://git.kernel.org/stable/c/b0637f4bd426925f5c3a15e8f8e36190fe06bac5
- https://git.kernel.org/stable/c/bdb2113dd8f17a3cc84a2b4be4968a849f69ec72
- https://git.kernel.org/stable/c/efd50c65fd1cdef63eb58825f3fe72496443764c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270