CVE-2025-39978
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
15/10/2025
Last modified:
16/10/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()<br />
<br />
This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node"<br />
and then dereferences it on the next line. Two lines later, we take<br />
a mutex so I don&#39;t think this is an RCU safe region. Re-order it to do<br />
the dereferences before queuing up the free.
Impact
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/5723120423a753a220b8b2954b273838b9d7e74a
- https://git.kernel.org/stable/c/a8a63f27c3a8a3714210d32b12fd0f16d0337414
- https://git.kernel.org/stable/c/c41b2941a024d4ec7c768e16ffb10a74b188fced
- https://git.kernel.org/stable/c/d9c70e93ec5988ab07ad2a92d9f9d12867f02c56
- https://git.kernel.org/stable/c/df2c071061ed52d2225d97b212d27ecedf456b8a



