CVE-2026-63822

CVE CVE-2026-63822EUVD EUVD-2026-45488Published 2026-07-19T12:02:19.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix warning when unbinding If there is an error during some initialization related to firmware, the buffers dp->tx_ring[i].tx_status are released. However this is released again when the device is unbinded (ath11k_pci), and we get: WARNING: CPU: 0 PID: 6231 at mm/slub.c:4368 free_large_kmalloc+0x57/0x90 Call Trace: free_large_kmalloc ath11k_dp_free ath11k_core_deinit ath11k_pci_remove ... The issue is always reproducible from a VM because the MSI addressing initialization is failing. In order to fix the issue, just set the buffers to NULL after releasing in order to avoid the double free.

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 patch: 0; d5c65159f2895379e11ca13f62feabe93278985d <40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a; patch: 6.6.144; d5c65159f2895379e11ca13f62feabe93278985d <0aa097a370277deab5337030b9e2d395742f469c; d5c65159f2895379e11ca13f62feabe93278985d <0a946abb82f29abe9a15173b707a449cb039b43e; patch: 7.1.3; d5c65159f2895379e11ca13f62feabe93278985d <e569a5cb401a267168621aa9a1e7f07fcc9612c3; patch: 5.10.260; d5c65159f2895379e11ca13f62feabe93278985d <7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13; 5.6; patch: 6.1.177; patch: 7.2-rc1; d5c65159f2895379e11ca13f62feabe93278985d <051f954b94479d72222c9fbc82a3eef4777bca01; d5c65159f2895379e11ca13f62feabe93278985d <318703b6f71d1a29ee0ac46c32a38f7734d4cfb2; patch: 5.15.211; d5c65159f2895379e11ca13f62feabe93278985d <8b7a26b6681922a38cd5a7829ace61f8e54df9b7; patch: 6.18.38; patch: 6.12.95

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

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

Does this concern one of your customers?

This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.

Try it for 28 days

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.