diff options
| author | Eric Dumazet <[email protected]> | 2023-08-03 16:30:21 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2023-08-04 18:27:58 -0700 |
| commit | a47e598fbd8617967e49d85c49c22f9fc642704c (patch) | |
| tree | 7d9d662e64eb37268b7197729e3cafac5d59bf81 /tools/perf/scripts/python/futex-contention.py | |
| parent | fc2ea6ab0a73b58328c61237017e28ba49b3a21e (diff) | |
dccp: fix data-race around dp->dccps_mss_cache
dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket.
Same thing in do_dccp_getsockopt().
Add READ_ONCE()/WRITE_ONCE() annotations,
and change dccp_sendmsg() to check again dccps_mss_cache
after socket is locked.
Fixes: 7c657876b63c ("[DCCP]: Initial implementation")
Reported-by: syzbot <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/futex-contention.py')
0 files changed, 0 insertions, 0 deletions