Security update for the Linux Kernel

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security bugfixes. The following security bugs were fixed: - CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960). - CVE-2021-47321: Fixed possible use-after-free by calling del_timer_sync() (bsc#1225060). - CVE-2021-47324: Fixed possible use-after-free in wdt_startup() (bsc#1225030). - CVE-2021-47323: Fixed possible use-after-free in wdt_turnoff() (bsc#1225026). - CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208). - CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411). - CVE-2021-47391: Ensure rdma_addr_cancel() happens before issuing more requests (bsc#1225318) - CVE-2021-47347: Fixed possible buffer overflow in wl1251_cmd_scan (bsc#1225177).