CVE-2024-53118

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> vsock: Fix sk_error_queue memory leak<br /> <br /> Kernel queues MSG_ZEROCOPY completion notifications on the error queue.<br /> Where they remain, until explicitly recv()ed. To prevent memory leaks,<br /> clean up the queue when the socket is destroyed.<br /> <br /> unreferenced object 0xffff8881028beb00 (size 224):<br /> comm "vsock_test", pid 1218, jiffies 4294694897<br /> hex dump (first 32 bytes):<br /> 90 b0 21 17 81 88 ff ff 90 b0 21 17 81 88 ff ff ..!.......!.....<br /> 00 00 00 00 00 00 00 00 00 b0 21 17 81 88 ff ff ..........!.....<br /> backtrace (crc 6c7031ca):<br /> [] kmem_cache_alloc_node_noprof+0x2f7/0x370<br /> [] __alloc_skb+0x132/0x180<br /> [] sock_omalloc+0x4b/0x80<br /> [] msg_zerocopy_realloc+0x9e/0x240<br /> [] virtio_transport_send_pkt_info+0x412/0x4c0<br /> [] virtio_transport_stream_enqueue+0x43/0x50<br /> [] vsock_connectible_sendmsg+0x373/0x450<br /> [] ____sys_sendmsg+0x365/0x3a0<br /> [] ___sys_sendmsg+0x84/0xd0<br /> [] __sys_sendmsg+0x47/0x80<br /> [] do_syscall_64+0x93/0x180<br /> [] entry_SYSCALL_64_after_hwframe+0x76/0x7e