In the Linux kernel, the following vulnerability has been resolved:
mtd: rawnand: fsl_upm: Fix an off-by one test in fun_exec_op()
'op-cs' is copied in 'fun->mchip_number' which is used to access the 'mchip_offsets' and the 'rnb_gpio' arrays. These arrays have NAND_MAX_CHIPS elements, so the index must be below this limit.
Fix the sanity check in order to avoid the NAND_MAX_CHIPS value. This would lead to out-of-bound accesses.
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 | Dec 29, 2025 | Dec 29, 2025 |
| Ubuntu | — | Upgrade linux-intel-iot-realtimeUpgrade linux-lowlatency-hwe-5.15Upgrade linux-bluefieldUpgrade linux-gcpUpgrade linux-nvidia-tegraUpgrade linuxUpgrade linux-realtimeUpgrade linux-nvidia-tegra-5.15Upgrade linux-awsUpgrade linux-aws-5.15Upgrade linux-azure-5.15Upgrade linux-ibm-5.15Upgrade linux-gkeUpgrade linux-gkeopUpgrade linux-intel-iotgUpgrade linux-azureUpgrade linux-oracle-5.15Upgrade linux-raspiUpgrade linux-oracleUpgrade linux-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-lowlatencyUpgrade linux-xilinx-zynqmpUpgrade linux-gcp-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-nvidiaUpgrade linux-ibmUpgrade linux-nvidia-tegra-igxUpgrade linux-kvm | Jan 6, 2026 | Dec 24, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Dec 24, 2025 |
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