On 2/13/2018 9:05 AM, Sowmini Varadhan wrote:
Commit ebeeb1ad9b8a ("rds: tcp: use rds_destroy_pending() to synchronize
netns/module teardown and rds connection/workq management")
adds an rcu read critical section to __rd_conn_create. The
memory allocations in that critcal section need to use
GFP_ATOMIC to avoid sleeping.
This patch was verified with syzkaller reproducer.
Fixes: ebeeb1ad9b8a ("rds: tcp: use rds_destroy_pending() to synchronize
netns/module teardown and rds connection/workq management")
Reported-by: syzbot+a0564419941aaae3f...@syzkaller.appspotmail.com
Signed-off-by: Sowmini Varadhan <sowmini.varad...@oracle.com>
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Acked-by: Santosh Shilimkar <santosh.shilim...@oracle.com>