CVE-2025-68312— usbnet: Prevents free active kevent
Possible ATT&CK Techniques 1AI
T1059.004 · Unix ShellAffected Version Matrix 31
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8b4588b8b00b299be16a35be67b331d8fdba03f3< 285d4b953f2ca03c358f986718dd89ee9bde632e | affected |
135199a2edd459d2b123144efcd7f9bcd95128e4< 88a38b135d69f5db9024ff6527232f1b51be8915 | affected | ||
635fd8953e4309b54ca6a81bed1d4a87668694f4< 43005002b60ef3424719ecda16d124714b45da3b | affected | ||
a69e617e533edddf3fa3123149900f36e0a6dc74< 3a10619fdefd3051aeb14860e4d4335529b4e94d | affected | ||
a69e617e533edddf3fa3123149900f36e0a6dc74< 9a579d6a39513069d298eee70770bbac8a148565 | affected | ||
a69e617e533edddf3fa3123149900f36e0a6dc74< 2ce1de32e05445d77fc056f6ff8339cfb78a5f84 | affected | ||
a69e617e533edddf3fa3123149900f36e0a6dc74< 5158fb8da162e3982940f30cd01ed77bdf42c6fc | affected | ||
a69e617e533edddf3fa3123149900f36e0a6dc74< 420c84c330d1688b8c764479e5738bbdbf0a33de | affected | ||
| … +23 more rows | |||
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I. Basic Information for CVE-2025-68312
Vulnerability Information
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Vulnerability Title
usbnet: Prevents free active kevent
Source: NVD (National Vulnerability Database)
Vulnerability 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().
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于活动对象释放不当，可能导致系统崩溃。
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
II. Public POCs for CVE-2025-68312
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2025-68312 (8)
Same Patch Batch · Linux · 2025-12-16 · 157 CVEs total
| CVE-2025-68263 | 9.8 CRITICAL | ksmbd: ipc: fix use-after-free in ipc_msg_send_request |
| CVE-2025-68259 | KVM: SVM: Don't skip unrelated instruction if INT3/INTO is replaced | |
| CVE-2025-68250 | hung_task: fix warnings caused by unaligned lock pointers | |
| CVE-2025-68251 | erofs: avoid infinite loops due to corrupted subpage compact indexes | |
| CVE-2025-68252 | misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup | |
| CVE-2025-68253 | mm: don't spin in add_stack_record when gfp flags don't allow | |
| CVE-2025-68254 | staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing | |
| CVE-2025-68255 | staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing | |
| CVE-2025-68256 | staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser | |
| CVE-2025-68257 | comedi: check device's attached status in compat ioctls | |
| CVE-2025-68258 | comedi: multiq3: sanitize config options in multiq3_attach() | |
| CVE-2025-68264 | ext4: refresh inline data size before write operations | |
| CVE-2025-68282 | usb: gadget: udc: fix use-after-free in usb_gadget_state_work | |
| CVE-2025-68281 | ASoC: SDCA: bug fix while parsing mipi-sdca-control-cn-list | |
| CVE-2025-68266 | bfs: Reconstruct file type when loading from disk | |
| CVE-2025-68265 | nvme: fix admin request_queue lifetime | |
| CVE-2025-68261 | ext4: add i_data_sem protection in ext4_destroy_inline_data_nolock() | |
| CVE-2025-68260 | rust_binder: fix race condition on death_list | |
| CVE-2025-68249 | most: usb: hdm_probe: Fix calling put_device() before device initialization | |
| CVE-2025-68262 | crypto: zstd - fix double-free in per-CPU stream cleanup |
Showing top 20 of 157 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-53365
vsock/virtio: fix zerocopy completion for multi-skb sends - CVE-2026-53364
Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate - CVE-2026-53363
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_fr - CVE-2026-53362
ipv6: account for fraggap on the paged allocation path - CVE-2026-53361
af_unix: Set gc_in_progress to true in unix_gc().
Same vendor: Linux
- CVE-2026-53365
vsock/virtio: fix zerocopy completion for multi-skb sends - CVE-2026-53364
Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate - CVE-2026-53363
xfrm: iptfs: preserve shared-frag marker in iptfs_consume_fr - CVE-2026-53362
ipv6: account for fraggap on the paged allocation path - CVE-2026-53361
af_unix: Set gc_in_progress to true in unix_gc().
V. Comments for CVE-2025-68312
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