Description
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.
References7
- git.kernel.org/stable/c/5723120423a753a220b8b2954b273838b9d7e74a
- git.kernel.org/stable/c/a8a63f27c3a8a3714210d32b12fd0f16d0337414
- git.kernel.org/stable/c/c41b2941a024d4ec7c768e16ffb10a74b188fced
- git.kernel.org/stable/c/d9c70e93ec5988ab07ad2a92d9f9d12867f02c56
- git.kernel.org/stable/c/df2c071061ed52d2225d97b212d27ecedf456b8a
- cert-portal.siemens.com/productcert/html/ssa-019113.html
- cert-portal.siemens.com/productcert/html/ssa-457936.html
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 5 · as of 9 November 2026
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