CVE-2026-89924

CVE CVE-2026-89924EUVD EUVD-2026-80524Published 2026-09-16T10:32:17.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix old_data leak in guest debug error path __import_wp_info() allocates a per-watchpoint old_data buffer to back up the original guest memory contents. If a later watchpoint of the same KVM_SET_GUEST_DEBUG request fails to import, kvm_s390_import_bp_data() jumps to the error label, which frees the wp_info array but not the old_data buffers of the entries that were imported successfully. Up to MAX_BP_COUNT - 1 buffers of up to MAX_WP_SIZE bytes are leaked per failed request, and the request can be repeated. Create error handling for cleaning up all created old_data memory areas.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 27291e2165b6de70c476b7b675308113edd69a60 <5fbf319137735252eefa507193c9a619af5b7457; patch: 7.3-rc1; 27291e2165b6de70c476b7b675308113edd69a60 <e5ae7816e5ad145618f7fd568a0e8a94dd9f81f4; 27291e2165b6de70c476b7b675308113edd69a60 <c85d402553987777cc4742751437ea5dcbf98a7b; patch: 6.12.110; 27291e2165b6de70c476b7b675308113edd69a60 <46cb8a273e2f853f89a78b59dbdff8787b6e1c86; patch: 5.10.270; 27291e2165b6de70c476b7b675308113edd69a60 <f55e4d415d95342d5753e528e05a1e8623992c3f; 27291e2165b6de70c476b7b675308113edd69a60 <4048d0a252163084794be3e37995b872c5178913; patch: 5.15.221; patch: 6.6.157; patch: 6.18.51; patch: 7.2.5; 27291e2165b6de70c476b7b675308113edd69a60 <aa9c8e8baf1e765fa65b93212522c636f25d846f; patch: 0; 3.16; 27291e2165b6de70c476b7b675308113edd69a60 <124c81ee610e1fbdd93d4399f88d9e28ba97a941; patch: 6.1.188

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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