摘要:

In the Linux kernel, the following vulnerability has been resolved:RDMA/irdma: Fix drain SQ hang with no completionSW generated completions for outstanding WRs posted on SQafter QP is in error target the wrong CQ. This causes theib_drain_sq to hang with no completion.Fix this to generate completions on the right CQ.[ 863.969340] INFO: task kworker/u52:2:671 blocked for more than 122 seconds.[ 863.979224] Not tainted 5.14.0-130.el9.x86_64 #1[ 863.986588] echo 0 > /proc/sys/kernel/hung_task_timeout_secs disables this message.[ 863.996997] task:kworker/u52:2 state:D stack: 0 pid: 671 ppid: 2 flags:0x00004000[ 864.007272] Workqueue: xprtiod xprt_autoclose [sunrpc][ 864.014056] Call Trace:[ 864.017575] __schedule+0x206/0x580[ 864.022296] schedule+0x43/0xa0[ 864.026736] schedule_timeout+0x115/0x150[ 864.032185] __wait_for_common+0x93/0x1d0[ 864.037717] ? usleep_range_state+0x90/0x90[ 864.043368] __ib_drain_sq+0xf6/0x170 [ib_core][ 864.049371] ? __rdma_block_iter_next+0x80/0x80 [ib_core][ 864.056240] ib_drain_sq+0x66/0x70 [ib_core][ 864.062003] rpcrdma_xprt_disconnect+0x82/0x3b0 [rpcrdma][ 864.069365] ? xprt_prepare_transmit+0x5d/0xc0 [sunrpc][ 864.076386] xprt_rdma_close+0xe/0x30 [rpcrdma][ 864.082593] xprt_autoclose+0x52/0x100 [sunrpc][ 864.088718] process_one_work+0x1e8/0x3c0[ 864.094170] worker_thread+0x50/0x3b0[ 864.099109] ? rescuer_thread+0x370/0x370[ 864.104473] kthread+0x149/0x170[ 864.109022] ? set_kthread_struct+0x40/0x40[ 864.114713] ret_from_fork+0x22/0x30

安全等级: Low

公告ID: KylinSec-SA-2024-2606

发布日期: 2024年6月5日

关联CVE: CVE-2022-48694