In the Linux kernel, the following vulnerability has been resolved:
EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller
When loading the i10nm_edac driver on some Intel Granite Rapids servers, a call trace may appear as follows:
UBSAN: shift-out-of-bounds in drivers/edac/skx_common.c:453:16 shift exponent -66 is negative ... __ubsan_handle_shift_out_of_bounds+0x1e3/0x390 skx_get_dimm_info.cold+0x47/0xd40 [skx_edac_common] i10nm_get_dimm_config+0x23e/0x390 [i10nm_edac] skx_register_mci+0x159/0x220 [skx_edac_common] i10nm_init+0xcb0/0x1ff0 [i10nm_edac] ...
This occurs because some BIOS may disable a memory controller if there aren't any memory DIMMs populated on this memory controller. The DIMMMTR register of this disabled memory controller contains the invalid value ~0, resulting in the call trace above.
Fix this call trace by skipping DIMM enumeration on a disabled memory controller.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Huawei Euleros 2_0_sp13 | — | Upgrade kernelUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade bpftool | Feb 3, 2026 | Feb 2, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | May 13, 2026 | Nov 12, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Nov 12, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-36-genericUpgrade linux-image-aws-64kUpgrade linux-image-aws-64k-6.14Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-raspi-realtime-6.8Upgrade linux-image-genericUpgrade linux-image-realtimeUpgrade linux-image-gcpUpgrade linux-image-oem-24.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-virtualUpgrade linux-image-oracle-64kUpgrade linux-image-azure-nvidia-lts-24.04Upgrade linux-image-gcp-6.14Upgrade linux-image-oem-24.04aUpgrade linux-image-virtual-6.14Upgrade linux-image-oracleUpgrade linux-image-generic-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-azure-fips-6.8Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.14.0-1017-oracleUpgrade linux-image-6.8.0-1041-raspiUpgrade linux-image-6.14.0-1016-realtimeUpgrade linux-image-6.8.0-1029-azure-nvidiaUpgrade linux-image-6.14.0-1017-aws-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.14.0-1020-gcpUpgrade linux-image-6.8.0-1044-azure-fipsUpgrade linux-image-aws-6.14Upgrade linux-image-6.14.0-36-generic-64kUpgrade linux-image-raspi-6.14Upgrade linux-image-awsUpgrade linux-image-oracle-64k-6.14Upgrade linux-image-raspi-6.8Upgrade linux-image-raspiUpgrade linux-image-6.14.0-1017-oracle-64kUpgrade linux-image-oracle-6.14Upgrade linux-image-gcp-64kUpgrade linux-image-generic-64k-6.14Upgrade linux-image-6.8.0-2032-raspi-realtimeUpgrade linux-image-6.14.0-1020-gcp-64kUpgrade linux-image-6.14.0-1018-raspiUpgrade linux-image-azure-nvidia-6.8Upgrade linux-image-azure-fipsUpgrade linux-image-azureUpgrade linux-image-realtime-6.14Upgrade linux-image-azure-6.14Upgrade linux-image-6.14.0-1017-azureUpgrade linux-image-6.14.0-1017-awsUpgrade linux-image-generic-6.14Upgrade linux-image-gcp-64k-6.14 | Nov 19, 2025 | Nov 12, 2025 |
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