octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.1%
exploitation probability
0.1%top 95% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://git.kernel.org/stable/c/5723120423a753a220b8b2954b273838b9d7e74ahttps://git.kernel.org/stable/c/a8a63f27c3a8a3714210d32b12fd0f16d0337414https://git.kernel.org/stable/c/c41b2941a024d4ec7c768e16ffb10a74b188fcedhttps://git.kernel.org/stable/c/d9c70e93ec5988ab07ad2a92d9f9d12867f02c56https://git.kernel.org/stable/c/df2c071061ed52d2225d97b212d27ecedf456b8a