In the Linux kernel, the following vulnerability has been resolved:
usb: cdns3 fix use-after-free at workaround 2
BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xac
cdns3_wa2_remove_old_request() { ... kfree(priv_req->request.buf); cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ^^^ use after free ... }
cdns3_gadget_ep_free_request() free the space pointed by priv_req, but priv_req is used in the following list_del_init().
This patch move list_del_init() before cdns3_gadget_ep_free_request().
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jun 20, 2025 | Jun 20, 2025 |
| Dell Powerstore Dsa2025429 | — | Upgrade Dell PowerStoreOS to the latest version | Dec 3, 2025 | Dec 2, 2025 |
| Dell Powerstore Dsa2026039 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Jan 6, 2026 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Jun 18, 2025 |
| Ubuntu | — | Upgrade linux-riscv-5.15Upgrade linux-aws-5.4Upgrade linux-lowlatency-hwe-5.15Upgrade linux-azure-fde-5.15Upgrade linux-realtimeUpgrade linux-azureUpgrade linux-gcp-5.15Upgrade linux-fipsUpgrade linux-hwe-5.15Upgrade linux-aws-5.15Upgrade linux-oracle-5.4Upgrade linux-intel-iotgUpgrade linux-nvidiaUpgrade linux-raspiUpgrade linux-lowlatencyUpgrade linux-gkeUpgrade linux-azure-fipsUpgrade linux-oracle-5.15Upgrade linux-bluefieldUpgrade linux-gcp-fipsUpgrade linux-azure-5.15Upgrade linux-gcpUpgrade linux-raspi-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-aws-fipsUpgrade linux-gcp-5.4Upgrade linux-kvmUpgrade linuxUpgrade linux-iotUpgrade linux-hwe-5.4Upgrade linux-azure-5.4Upgrade linux-ibmUpgrade linux-ibm-5.4Upgrade linux-gkeopUpgrade linux-oracleUpgrade linux-aws | Jun 26, 2025 | Jun 18, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jun 18, 2025 |
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