Threats Tagged 'cve-2026-63822'
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Threats Tagged 'cve-2026-63822'
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A double free vulnerability was identified and fixed in the Linux kernel's ath11k WiFi driver. The issue occurs when an error during firmware initialization causes certain buffers to be released twice, leading to a warning and potential instability. The fix involves setting the buffers to NULL after release to prevent the double free. Join the discussion | GCVE Database | 07/19/2026, 12:30:23 UTC Added: 07/19/2026, 19:38:21 UTC |
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. Join the discussion | GCVE Database | 07/19/2026, 12:16:00 UTC Added: 07/21/2026, 20:02:15 UTC |
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