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CVE-2025-21822— ptp: vmclock: Set driver data before its usage

AI Predicted 3.3 Difficulty: Trivial EPSS 0.17% · P7

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinux20503272422693d793b84f88bf23fe4e955d3a33< 6dbd8b91a065d1d8001446a28e72cd140f9acef0affected
20503272422693d793b84f88bf23fe4e955d3a33< f7d07cd4f77d77f366c8ffbb8ba8b61f614e5fceaffected
6.13affected
< 6.13unaffected
6.13.4≤ 6.13.*unaffected
6.14≤ *unaffected
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I. Basic Information for CVE-2025-21822

Vulnerability Information
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Vulnerability Title
ptp: vmclock: Set driver data before its usage
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: Set driver data before its usage If vmclock_ptp_register() fails during probing, vmclock_remove() is called to clean up the ptp clock and misc device. It uses dev_get_drvdata() to access the vmclock state. However the driver data is not yet set at this point. Assign the driver data earlier.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于vmclock_ptp_register失败时未设置驱动数据，导致清理时访问未初始化数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 20503272422693d793b84f88bf23fe4e955d3a33 ~ 6dbd8b91a065d1d8001446a28e72cd140f9acef0 -
LinuxLinux 6.13 -

II. Public POCs for CVE-2025-21822

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III. Intelligence Information for CVE-2025-21822

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Patches & Fixes for CVE-2025-21822 (2)

Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total

CVE-2025-218059.8 CRITICALRDMA/rtrs: Add missing deinit() call
CVE-2025-217969.8 CRITICALnfsd: clear acl_access/acl_default after releasing them
CVE-2025-217079.8 CRITICALmptcp: consolidate suboption status
CVE-2025-217489.8 CRITICALksmbd: fix integer overflows on 32 bit systems
CVE-2024-580069.6 CRITICALPCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()
CVE-2024-579998.8 HIGHpowerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW
CVE-2025-217358.8 HIGHNFC: nci: Add bounds checking in nci_hci_create_pipe()
CVE-2024-579978.8 HIGHwifi: wcn36xx: fix channel survey memory allocation size
CVE-2024-579958.8 HIGHwifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()
CVE-2025-217108.2 HIGHtcp: correct handling of extreme memory squeeze
CVE-2025-217668.1 HIGHipv4: use RCU protection in __ip_rt_update_pmtu()
CVE-2024-579738.1 HIGHrdma/cxgb4: Prevent potential integer overflow on 32bit
CVE-2025-217658.1 HIGHipv6: use RCU protection in ip6_default_advmss()
CVE-2025-217608.1 HIGHndisc: extend RCU protection in ndisc_send_skb()
CVE-2025-217628.1 HIGHarp: use RCU protection in arp_xmit()
CVE-2024-580107.8 HIGHbinfmt_flat: Fix integer overflow bug on 32 bit systems
CVE-2024-580087.8 HIGHKEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y
CVE-2025-217647.8 HIGHndisc: use RCU protection in ndisc_alloc_skb()
CVE-2025-217917.8 HIGHvrf: use RCU protection in l3mdev_l3_out()
CVE-2025-217637.8 HIGHneighbour: use RCU protection in __neigh_notify()

Showing top 20 of 177 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21822

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