UBUNTU-CVE-2026-97442: High severity ubuntu/linux vulnerability

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix invalid data access in ath11kdprxhundecapnwifi In certain cases, hardware might provide packets with a length greater than the maximum native Wi-Fi header length. This can lead to accessing and modifying fields in the header within the ath11kdprxhundecapnwifi() function for the DPRXDECAPTYPENATIVEWIFI decap type and potentially result in invalid data access and memory corruption. Kernel stack is corrupted in: ath11kdprxhundecap+0x6b0/0x6b0 [ath11k] Call trace: ath11kdprxhmpdu+0x0/0x2e8 [ath11k] ath11kdprxhmpdu+0x1e0/0x2e8 [ath11k] ath11kdprxwbmerr+0x1e0/0x450 [ath11k] ath11kdprxprocesswbmerr+0x2fc/0x460 [ath11k] ath11kdpservicesrng+0x2e0/0x348 [ath11k] Add a sanity check before processing the SKB to prevent invalid data access in the undecap native Wi-Fi function for the DPRXDECAPTYPENATIVEWIFI decap type. This adapted from the discussion/patch of the ath12k driver [1]. Tested-on: WCN6855 hw2.1 PCI WLAN.HSP.1.1-04685-QCAHSPSWPLV1V2SILICONZIOE-1