CVE-2025-39978

octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

15 Oct 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() This code calls kfree_rcu(new_node, rcu) and then dereferences "new_node" and then dereferences it on the next line. Two lines later, we take a mutex so I don't think this is an RCU safe region. Re-order it to do the dereferences before queuing up the free.

Affected products

Linux · Linux

References

https://cert-portal.siemens.com/productcert/html/ssa-019113.html 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