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| author |   Jason Gunthorpe <jgg@nvidia.com> | 2020-11-18 09:33:23 -0400 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-11-25 11:07:01 -0400 |
| commit | dd37d2f59eb839d51b988f6668ce5f0d533b23fd (patch) | |
| tree | e304d513f07dd8061673ba680ebaa89865b995c6 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | RDMA/hns: Refactor the hns_roce_buf allocation flow (diff) | |
| download | wireguard-linux-dd37d2f59eb839d51b988f6668ce5f0d533b23fd.tar.xz wireguard-linux-dd37d2f59eb839d51b988f6668ce5f0d533b23fd.zip | |
RDMA/cma: Fix deadlock on &lock in rdma_cma_listen_on_all() error unwind
rdma_detroy_id() cannot be called under &lock - we must instead keep the
error'd ID around until &lock can be released, then destroy it.
This is complicated by the usual way listen IDs are destroyed through
cma_process_remove() which can run at any time and will asynchronously
destroy the same ID.
Remove the ID from visiblity of cma_process_remove() before going down the
destroy path outside the locking.
Fixes: c80a0c52d85c ("RDMA/cma: Add missing error handling of listen_id")
Link: https://lore.kernel.org/r/20201118133756.GK244516@ziepe.ca
Reported-by: syzbot+1bc48bf7f78253f664a9@syzkaller.appspotmail.com
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions