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CVE REMEDIATION GUIDE
Review reviewHighFixed-version data available

CVE-2024-26883 remediation guide

Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, debian linux

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stackmap overflow check on 32-bit arches The stackmap code relies on roundup_pow_of_two() to compute the number of hash buckets, and contains an overflow check by checking if the resulting value is 0. However, on 32-bit arches, the roundup code itself can overflow by doing a 32-bit left-shift of an unsigned long value, which is undefined behaviour, so it is not guaranteed to truncate neatly. This was triggered by syzbot on the DEVMAP_HASH type, which contains the same check, copied from the hashtab code. The commit...

Open CVE record
ProductLinux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, debian linux
Affected versions>= 063c722dd9d285d877e6fd499e753d6224f4c046 < d0e214acc59145ce25113f617311aa79dda39cb3, >= 7e3a6b820535eb395784060ae26c5af579528fa0 < 21e5fa4688e1a4d3db6b72216231b24232f75c1d, >= 8032bf2af9ce26b3a362b9711d15f626ab946a74 < 15641007df0f0d35fa28742b25c2a7db9dcd6895, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < ca1f06e72dec41ae4f76e7b1a8a97265447b46ae, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < f06899582ccee09bd85d0696290e3eaca9aa042d, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < 7070b274c7866a4c5036f8d54fcaf315c64ac33a, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < 43f798b9036491fb014b55dd61c4c5c3193267d0, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < 0971126c8164abe2004b8536b49690a0d6005b0a, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < 7a4b21250bf79eef26543d35bd390448646c536b, >= 253150830a012adfccf90afcebae8fda5b05a80f, >= 766107351731ae223ebf60ca22bdfeb47ce6acc8, >= 4.19.177 < 4.19.311, >= 5.4.99 < 5.4.273, >= 5.10.17 < 5.10.214, >= 4.9.258 < 4.10, >= 4.14.222 < 4.15, >= 5.11, 10.0, >= 5.11 < 5.15.153, >= 5.16 < 6.1.83
Fixed versions4.10, 4.15, 4.19.311, 5.4.273, 5.10.214, 5.15.153, 6.1.83, 6.6.23, 6.7.11, 6.8.2
Priority basisReview · CVSS 7.8 · EPSS 0.25%
01

Identify the affected asset

Confirm whether Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, debian linux 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.
02

Validate the affected-version match

Compare the deployed version with the affected range: >= 063c722dd9d285d877e6fd499e753d6224f4c046 < d0e214acc59145ce25113f617311aa79dda39cb3, >= 7e3a6b820535eb395784060ae26c5af579528fa0 < 21e5fa4688e1a4d3db6b72216231b24232f75c1d, >= 8032bf2af9ce26b3a362b9711d15f626ab946a74 < 15641007df0f0d35fa28742b25c2a7db9dcd6895, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < ca1f06e72dec41ae4f76e7b1a8a97265447b46ae, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < f06899582ccee09bd85d0696290e3eaca9aa042d, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < 7070b274c7866a4c5036f8d54fcaf315c64ac33a, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < 43f798b9036491fb014b55dd61c4c5c3193267d0, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < 0971126c8164abe2004b8536b49690a0d6005b0a, >= 6183f4d3a0a2ad230511987c6c362ca43ec0055f < 7a4b21250bf79eef26543d35bd390448646c536b, >= 253150830a012adfccf90afcebae8fda5b05a80f, >= 766107351731ae223ebf60ca22bdfeb47ce6acc8, >= 4.19.177 < 4.19.311, >= 5.4.99 < 5.4.273, >= 5.10.17 < 5.10.214, >= 4.9.258 < 4.10, >= 4.14.222 < 4.15, >= 5.11, 10.0, >= 5.11 < 5.15.153, >= 5.16 < 6.1.83. Treat incomplete inventory results as unresolved.

03

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.

04

Apply supported remediation

Follow the vendor advisory or supported update path. Current fixed-version status: 4.10, 4.15, 4.19.311, 5.4.273, 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.

05

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.