CVE-2025-71234

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add<br /> <br /> The driver does not set hw-&gt;sta_data_size, which causes mac80211 to<br /> allocate insufficient space for driver private station data in<br /> __sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of<br /> struct rtl8xxxu_sta_info through sta-&gt;drv_priv, this results in a<br /> slab-out-of-bounds write.<br /> <br /> KASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter:<br /> <br /> BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346<br /> Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12<br /> <br /> Set hw-&gt;sta_data_size to sizeof(struct rtl8xxxu_sta_info) during<br /> probe, similar to how hw-&gt;vif_data_size is configured. This ensures<br /> mac80211 allocates sufficient space for the driver&amp;#39;s per-station<br /> private data.<br /> <br /> Tested on StarFive VisionFive 2 v1.2A board.