{"cve":"CVE-2026-63822","nvd":{"published":"2026-07-19T12:16:55.330","modified":"2026-08-17T05:17:19.687","status":"Awaiting Analysis","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix warning when unbinding\n\nIf there is an error during some initialization related to firmware,\nthe buffers dp->tx_ring[i].tx_status are released.\nHowever this is released again when the device is unbinded (ath11k_pci),\nand we get:\nWARNING: CPU: 0 PID: 6231 at mm/slub.c:4368 free_large_kmalloc+0x57/0x90\nCall Trace:\nfree_large_kmalloc\nath11k_dp_free\nath11k_core_deinit\nath11k_pci_remove\n...\n\nThe issue is always reproducible from a VM because the MSI addressing\ninitialization is failing.\n\nIn order to fix the issue, just set the buffers to NULL after releasing in\norder to avoid the double free.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/051f954b94479d72222c9fbc82a3eef4777bca01","https://git.kernel.org/stable/c/0a946abb82f29abe9a15173b707a449cb039b43e","https://git.kernel.org/stable/c/0aa097a370277deab5337030b9e2d395742f469c","https://git.kernel.org/stable/c/318703b6f71d1a29ee0ac46c32a38f7734d4cfb2","https://git.kernel.org/stable/c/40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:45:36.895656543+00:00"},"epss":{"cve":"CVE-2026-63822","score":0.00174,"percentile":0.06821,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}