CVE-2021-46924

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> NFC: st21nfca: Fix memory leak in device probe and remove<br /> <br /> &amp;#39;phy-&gt;pending_skb&amp;#39; is alloced when device probe, but forgot to free<br /> in the error handling path and remove path, this cause memory leak<br /> as follows:<br /> <br /> unreferenced object 0xffff88800bc06800 (size 512):<br /> comm "8", pid 11775, jiffies 4295159829 (age 9.032s)<br /> hex dump (first 32 bytes):<br /> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................<br /> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................<br /> backtrace:<br /> [] __kmalloc_node_track_caller+0x1ed/0x450<br /> [] kmalloc_reserve+0x37/0xd0<br /> [] __alloc_skb+0x124/0x380<br /> [] st21nfca_hci_i2c_probe+0x170/0x8f2<br /> <br /> Fix it by freeing &amp;#39;pending_skb&amp;#39; in error and remove.