CVE-2024-44997

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()<br /> <br /> When there are multiple ap interfaces on one band and with WED on,<br /> turning the interface down will cause a kernel panic on MT798X.<br /> <br /> Previously, cb_priv was freed in mtk_wed_setup_tc_block() without<br /> marking NULL,and mtk_wed_setup_tc_block_cb() didn&amp;#39;t check the value, too.<br /> <br /> Assign NULL after free cb_priv in mtk_wed_setup_tc_block() and check NULL<br /> in mtk_wed_setup_tc_block_cb().<br /> <br /> ----------<br /> Unable to handle kernel paging request at virtual address 0072460bca32b4f5<br /> Call trace:<br /> mtk_wed_setup_tc_block_cb+0x4/0x38<br /> 0xffffffc0794084bc<br /> tcf_block_playback_offloads+0x70/0x1e8<br /> tcf_block_unbind+0x6c/0xc8<br /> ...<br /> ---------