CVE-2025-68312usbnet: Prevents free active kevent
- —Not scoredno CVSS score yet
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: usbnet: Prevents free active kevent The root cause of this issue are: 1. When probing the usbnet device, executing usbnet_link_change(dev, 0, 0); put the kevent work in global workqueue. However, the kevent has not yet been scheduled when the usbnet device is unregistered. Therefore, executing free_netdev() results in the "free active object (kevent)" error reported here. 2. Another factor is that when calling usbnet_disconnect()->unregister_netdev(), if the usbnet device is up, ndo_stop() is executed to cancel the kevent. However, because the device is not up, ndo_stop() is not executed. The solution to this problem is to cancel the kevent before executing free_netdev().
Timeline
ID reserved
By Linux
Published
- 6 months later
· 6 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 8b4588b8b00b299be16a35be67b331d8fdba03f3 – < 285d4b953f2ca03c358f986718dd89ee9bde632e
- affected 135199a2edd459d2b123144efcd7f9bcd95128e4 – < 88a38b135d69f5db9024ff6527232f1b51be8915
- affected 635fd8953e4309b54ca6a81bed1d4a87668694f4 – < 43005002b60ef3424719ecda16d124714b45da3b
- affected a69e617e533edddf3fa3123149900f36e0a6dc74 – < 3a10619fdefd3051aeb14860e4d4335529b4e94d
- affected a69e617e533edddf3fa3123149900f36e0a6dc74 – < 9a579d6a39513069d298eee70770bbac8a148565
- affected a69e617e533edddf3fa3123149900f36e0a6dc74 – < 2ce1de32e05445d77fc056f6ff8339cfb78a5f84
- affected a69e617e533edddf3fa3123149900f36e0a6dc74 – < 5158fb8da162e3982940f30cd01ed77bdf42c6fc
- affected a69e617e533edddf3fa3123149900f36e0a6dc74 – < 420c84c330d1688b8c764479e5738bbdbf0a33de
- affected d2d6b530d89b0a912148018027386aa049f0a309
- affected e2a521a7dcc463c5017b4426ca0804e151faeff7
- affected 7f77dcbc030c2faa6d8e8a594985eeb34018409e
- affected d49bb8cf9bfaa06aa527eb30f1a52a071da2e32f
- affected db3b738ae5f726204876f4303c49cfdf4311403f
- affected 5.4.211 – < 5.4.302
- affected 5.10.137 – < 5.10.247
- affected 5.15.61 – < 5.15.197
- affected 4.9.326 – < 4.10
- affected 4.14.291 – < 4.15
- affected 4.19.256 – < 4.20
- affected 5.18.18 – < 5.19
- affected 5.19.2 – < 5.20
- affected 6.0
- unaffected < 6.0
- unaffected 5.4.302 – ≤ 5.4.*
- unaffected 5.10.247 – ≤ 5.10.*
- unaffected 5.15.197 – ≤ 5.15.*
- unaffected 6.1.159 – ≤ 6.1.*
- unaffected 6.6.117 – ≤ 6.6.*
- unaffected 6.12.58 – ≤ 6.12.*
- unaffected 6.17.8 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References8
- https://git.kernel.org/stable/c/285d4b953f2ca03c358f986718dd89ee9bde632e (opens in a new tab)
- https://git.kernel.org/stable/c/88a38b135d69f5db9024ff6527232f1b51be8915 (opens in a new tab)
- https://git.kernel.org/stable/c/43005002b60ef3424719ecda16d124714b45da3b (opens in a new tab)
- https://git.kernel.org/stable/c/3a10619fdefd3051aeb14860e4d4335529b4e94d (opens in a new tab)
- https://git.kernel.org/stable/c/9a579d6a39513069d298eee70770bbac8a148565 (opens in a new tab)
- https://git.kernel.org/stable/c/2ce1de32e05445d77fc056f6ff8339cfb78a5f84 (opens in a new tab)
- https://git.kernel.org/stable/c/5158fb8da162e3982940f30cd01ed77bdf42c6fc (opens in a new tab)
- https://git.kernel.org/stable/c/420c84c330d1688b8c764479e5738bbdbf0a33de (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-203757 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-68312)Record last updated .