CVE-2026-90399: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: fix stride mismatch in mac_phy_caps_parse() Currently, in ath12k_wmi_mac_phy_caps_parse(), kzalloc() sizes the mac_phy_caps buffer as tot_phy_id * len, where len is clamped to min(firmware_len, sizeof(struct ath12k_wmi_mac_phy_caps_params)). The subsequent memcpy() destination advances by sizeof(full struct) per slot via C pointer arithmetic, not by the clamped len. When firmware sends short TLVs, the second and later slots are written past the end of the allocation. The reader in ath12k_pull_mac_phy_cap_svc_ready_ext() also indexes the buffer with full-struct pointer arithmetic, so the allocation must match that stride. Fix by using kzalloc_objs(), which derives the element size from the pointer type, making allocation size and pointer stride provably consistent regardless of what len the firmware provides. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c7-00108-QCAHMTSWPL_V1.0_V2.0_SILICONZ_UPSTREAM-3

Засегнати продукти

• Linux Linux: d889913205cf7ebda905b1e62c5867ed4e39f6c2 преди 79c6f4f7d16eea1bcb8bc5c8fd6ec04a01b0614f; d889913205cf7ebda905b1e62c5867ed4e39f6c2 преди d3355e0fdbbf531ca8b82a6a3feb80a1b7306a8b; d889913205cf7ebda905b1e62c5867ed4e39f6c2 преди b9a5d12cbdeb860306f8d47c92caee0ea6ee0e0a; d889913205cf7ebda905b1e62c5867ed4e39f6c2 преди 26f8f87f0a556e7984366c64cebc16d49e15d22f; d889913205cf7ebda905b1e62c5867ed4e39f6c2 преди 4c6eb712a91fa079be6f9f1419c96e0ad2227081
• Linux Linux: 6.3; преди 6.3; 6.6.160 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; 7.3 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-90399
• https://nvd.nist.gov/vuln/detail/CVE-2026-90399
• https://git.kernel.org/stable/c/79c6f4f7d16eea1bcb8bc5c8fd6ec04a01b0614f
• https://git.kernel.org/stable/c/d3355e0fdbbf531ca8b82a6a3feb80a1b7306a8b
• https://git.kernel.org/stable/c/b9a5d12cbdeb860306f8d47c92caee0ea6ee0e0a
• https://git.kernel.org/stable/c/26f8f87f0a556e7984366c64cebc16d49e15d22f
• https://git.kernel.org/stable/c/4c6eb712a91fa079be6f9f1419c96e0ad2227081