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CVE-2023-53839

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CVE-2023-53839

Published: Dec 9, 2025

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c - < 162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1
affected
7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c - < 2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817
affected
7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c - < 67eebc7a9217f999b779d46fba5312a716f0dc1d
affected
7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c - < 6d701c95ee6463abcbb6da543060d6e444554135
affected
7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c - < f239c9e1d98b313435481b4926e8bdd06197e4d8

+3 more versions

Linux

Linux

affected
2.6.14
unaffected
0 - < 2.6.14
unaffected
4.14.323 - <= 4.14.*
unaffected
4.19.292 - <= 4.19.*
unaffected
5.4.254 - <= 5.4.*

+5 more versions

References

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