Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-63822

Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
19/07/2026
Última modificación:
19/07/2026

Descripción

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

Impacto