#VU104935 Memory leak in Linux kernel - CVE-2025-21739
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104935
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-2025-21739
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 ufshcd_pltfrm_init() and ufshcd_pltfrm_remove() functions in drivers/ufs/host/ufshcd-pltfrm.c, within the ufshcd_pci_remove() and ufshcd_pci_probe() functions in drivers/ufs/host/ufshcd-pci.c, within the EXPORT_SYMBOL_GPL(), ufshcd_set_dma_mask() and ufshcd_alloc_host() functions in drivers/ufs/core/ufshcd.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/0c77c0d754fe83cb154715fcfec6c3faef94f207
- https://git.kernel.org/stable/c/9c185beae09a3eb85f54777edafa227f7e03075d
- https://git.kernel.org/stable/c/f8fb2403ddebb5eea0033d90d9daae4c88749ada
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14