CVE-2024-26885 remediation guide

Linux Linux, linux_kernel, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix DEVMAP_HASH overflow check on 32-bit arches The devmap code allocates a number hash buckets equal to the next power of two of the max_entries value provided when creating the map. When rounding up to the next power of two, the 32-bit variable storing the number of buckets can overflow, and the code checks for overflow by checking if the truncated 32-bit value is equal to 0. However, on 32-bit arches the rounding up itself can overflow mid-way through, because it ends up doing a left-shift of 32 bits on an unsigned...

Open CVE record

ProductLinux Linux, linux_kernel, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Affected versions>= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 1f5e352b9088211fa5eb4e1639cd365f4f7d2f65, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 4b81a9f92b3676cb74b907a7a209b3d15bd9a7f9, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < c826502bed93970f2fd488918a7b8d5f1d30e2e3, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < edf7990baa48de5097daa9ac02e06cb4c798a737, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 250051acc21f9d4c5c595e4fcb55986ea08c4691, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 22079b3a423382335f47d9ed32114e6c9fe88d7c, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < e89386f62ce9a9ab9a94835a9890883c23d9d52c, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 281d464a34f540de166cee74b723e97ac2515ec3, >= 5.4, >= 6f9d451ab1a3, >= 5.4 < 5.10.214, >= 5.11 < 5.15.153, >= 5.16 < 6.1.83, >= 6.2 < 6.6.23, >= 6.7 < 6.7.11, >= 6.8 < 6.8.2

Fixed versions5.10.214, 5.15.153, 6.1.83, 6.6.23, 6.7.11, 6.8.2

Priority basisReview · CVSS 7.8 · EPSS 0.25%

Identify the affected asset

Confirm whether Linux Linux, linux_kernel, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem is installed, record the deployed version and installation path, and identify exposed interfaces.

Record the product name, package or appliance identifier, and installed version.
Identify internet-facing, administrative, API, and internal access paths.
Preserve the pre-change configuration and relevant service logs.

Validate the affected-version match

Compare the deployed version with the affected range: >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 1f5e352b9088211fa5eb4e1639cd365f4f7d2f65, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 4b81a9f92b3676cb74b907a7a209b3d15bd9a7f9, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < c826502bed93970f2fd488918a7b8d5f1d30e2e3, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < edf7990baa48de5097daa9ac02e06cb4c798a737, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 250051acc21f9d4c5c595e4fcb55986ea08c4691, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 22079b3a423382335f47d9ed32114e6c9fe88d7c, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < e89386f62ce9a9ab9a94835a9890883c23d9d52c, >= 6f9d451ab1a33728adb72d7ff66a7b374d665176 < 281d464a34f540de166cee74b723e97ac2515ec3, >= 5.4, >= 6f9d451ab1a3, >= 5.4 < 5.10.214, >= 5.11 < 5.15.153, >= 5.16 < 6.1.83, >= 6.2 < 6.6.23, >= 6.7 < 6.7.11, >= 6.8 < 6.8.2. Treat incomplete inventory results as unresolved.

Prioritize with independent signals

The CVSS severity warrants an early asset and exposure review. Combine this signal with asset criticality, exposure, compensating controls, and business impact.

Apply supported remediation

Follow the vendor advisory or supported update path. Current fixed-version status: 5.10.214, 5.15.153, 6.1.83, 6.6.23, 6.7.11, 6.8.2. Preserve configuration and rollback material before change.

Verify the result

Confirm the resulting version, service health, authentication and access paths, monitoring coverage, and relevant security logs.

Confirm the expected version and package state.
Run a functional health check for critical service paths.
Review authentication, error, application, and security monitoring logs.
Reassess exposure if the supported fix cannot be applied.

Operational boundary

This page does not replace the vendor advisory, support contract, change-management process, or recovery plan. Do not infer that an asset is unaffected from an incomplete inventory query or a missing fixed-version field.