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In the Linux kernel, the following vulnerability has been resolved:
HID: mcp2221: prevent a buffer overflow in mcp_smbus_write()
Smatch Warning: drivers/hid/hid-mcp2221.c:388 mcp_smbus_write() error: __memcpy() '&mcp->txbuf[5]' too small (59 vs 255) drivers/hid/hid-mcp2221.c:388 mcp_smbus_write() error: __memcpy() 'buf' too small (34 vs 255)
The 'len' variable can take a value between 0-255 as it can come from data->block[0] and it is user data. So add an bound check to prevent a buffer overflow in memcpy().
| 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-lowlatency-hwe-5.15Upgrade linux-awsUpgrade linux-aws-5.15Upgrade linux-azure-fdeUpgrade linux-raspiUpgrade linuxUpgrade linux-oracle-5.15Upgrade linux-intel-iotgUpgrade linux-gcpUpgrade linux-realtimeUpgrade linux-azureUpgrade linux-gkeUpgrade linux-riscv-5.15Upgrade linux-gkeopUpgrade linux-gcp-5.15Upgrade linux-hwe-5.15Upgrade linux-azure-5.15Upgrade linux-ibmUpgrade linux-intel-iotg-5.15Upgrade linux-oracleUpgrade linux-nvidiaUpgrade linux-lowlatencyUpgrade linux-kvm | 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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