CVEvulnerability
CVE-2023-53839
- Status
- Deferred
- Published
- 2025-12-09
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
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.
References
- https://git.kernel.org/stable/c/162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1 git.kernel.org
- https://git.kernel.org/stable/c/2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817 git.kernel.org
- https://git.kernel.org/stable/c/67eebc7a9217f999b779d46fba5312a716f0dc1d git.kernel.org
- https://git.kernel.org/stable/c/6d701c95ee6463abcbb6da543060d6e444554135 git.kernel.org
- https://git.kernel.org/stable/c/a47e598fbd8617967e49d85c49c22f9fc642704c git.kernel.org
- https://git.kernel.org/stable/c/a6ddc1c774874dc704f96a99d015dc759627bba7 git.kernel.org
- https://git.kernel.org/stable/c/d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384 git.kernel.org
- https://git.kernel.org/stable/c/f239c9e1d98b313435481b4926e8bdd06197e4d8 git.kernel.org