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CVE-2025-68188

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CVE-2025-68188

Published: Dec 16, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check() Use RCU to avoid a pair of atomic operations and a potential UAF on dst_dev()->flags.

VendorProductVersions

Linux

Linux

affected
cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 - < bc2b881a0896c111c1041d8bb1f92a3b3873ace5
affected
cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 - < 06da08d9355bf8e2070459bbedbe372ccc02cc0e
affected
cf1ef3f0719b4dcb74810ed507e2a2540f9811b4 - < b62a59c18b692f892dcb8109c1c2e653b2abc95c

Linux

Linux

affected
4.12
unaffected
0 - < 4.12
unaffected
6.12.58 - <= 6.12.*
unaffected
6.17.8 - <= 6.17.*
unaffected
6.18 - <= *

References

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